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Institut für Verkehrsplanung und Transportsysteme, ETH Zürich
 
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, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Welches Geschwindigkeitsniveau braucht eine Stadt?
Abstract: 2
Book title: Optimale Geschwindigkeiten in Siedlungsgebieten
Pages: 71 - 74
ISBN: 978-3-7386-5826-2
Publication date / Date received: 2015-01-01
Publication status: Norderstedt
Publication status: Published
Language: German
DBID source: FORM-1448305765
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Warteschlangen, Stau und was man tun könnte
Abstract: 2
Publication date / Date received: 2015-09-28
Publication status: Published
Language: German
DBID source: FORM-1443616696
, Erath, Alexander L., Axhausen, Kay W., Eggermond, Michael A.B. van, Ordóñez Medina, Sergio A., Ali, A., 2015 >>
Author(s): Erath, Alexander L., Axhausen, Kay W., Eggermond, Michael A.B. van, Ordóñez Medina, Sergio A., Ali, A.
Title: Walkability and pedestrian route choice in Singapore
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Singapore
Publication status: Published
Event name: Urban Sustainability R&D Congress 2015
Event date: July 9-10, 2015
Place: Singapore
Language: English
DBID source: FORM-1446799186
, Erath, Alexander L., Eggermond, Michael A.B. van, Ordóñez Medina, Sergio A., Axhausen, Kay W., 2015 >>
Author(s): Erath, Alexander L., Eggermond, Michael A.B. van, Ordóñez Medina, Sergio A., Axhausen, Kay W.
Title: Walkability and pedestrian route choice - key findings
Abstract: 2
Published in: Vorträge
Volume: 560
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Event name: URA Centre
Event date: July 26, 2015
Place: Singapore, Singapore
Language: English
DBID source: FORM-1446799734
, Eggermond, Michael A.B. van, Erath, Alexander, Axhausen, Kay W., 2015 >>
Author(s): Eggermond, Michael A.B. van, Erath, Alexander, Axhausen, Kay W.
Title: Vehicle ownership and usage in Switzerland: the role of micro and macro-accessibility
Abstract: This study investigates the role of built environment and accessibility on vehicle ownership and usage in Switzerland. To characterize the urban structure we make a distinction between micro- accessibility and macro-accessibility. Micro-accessibility is derived from an extensive online points of interest database and the walking time to these destinations. From the calculated micro- accessibility, a diversity and destination index is constructed. After controlling for household income, license ownership and household composition, built environment and accessibility significantly influences vehicle ownership and usage. Diversity of nearby destinations is more than important the number of destinations for both vehicle ownership and usage. Public transport accessibility plays a more important role in moderating vehicle ownership than in moderating vehicle usage for households owning a car.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 1093
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Subjects: Raumordnung, Städtebau, Landschaftsarchitektur|Spatial and Urban Planning, Landscape Architecture, Verkehr und Transport|Traffic and Transportation, Verkehrsplanung, Strassen- und Eisenbahnbau|Traffic, Highway and Railroad Engineering
Language: English
DBID source: FORM-1438931378
Nebis system number: 004231702
, Ehreke, Ilka, Axhausen, Kay W., 2015 >>
Author(s): Ehreke, Ilka, Axhausen, Kay W.
Title: Using a piecewise Cox PH model to analyse changes in employment biographies
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Ascona
Publication status: Unpublished
Event name: 15th Swiss Transport Research Conference (STRC 2015)
Event date: April 15-17, 2015
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1432372759
, Dobler, Christoph, Weinmann, Siegfried, Axhausen, Kay W., 2015 >>
Author(s): Dobler, Christoph, Weinmann, Siegfried, Axhausen, Kay W.
Title: Transport simulations
Subtitle: Knowledge levels and system outcomes
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Accepted
Language: English
DBID source: FORM-1438608448
, Grüntzig, Katrin, Graf, Ricarda, Hässig, Michael, Welle, Molly, Meier, Dorette, Lott, G., Erni, D., Schenker, N.S., Guscetti, Franco, Boo, G., Axhausen, Kay W., Fabrikant, S., Folkers, Gerd, Pospischil, Andreas, 2015 >>
Author(s): Grüntzig, Katrin, Graf, Ricarda, Hässig, Michael, Welle, Molly, Meier, Dorette, Lott, G., Erni, D., Schenker, N.S., Guscetti, Franco, Boo, G., Axhausen, Kay W., Fabrikant, S., Folkers, Gerd, Pospischil, Andreas
Title: The Swiss Canine Cancer Registry: A Retrospective Study on the Occurrence of Tumours in Dogs in Switzerland from 1955 to 2008
Abstract: Diagnostic records are a key feature of any cancer epidemiology, prevention or control strategy for man and animals. Therefore, the information stored in human and animal cancer registries is essential for undertaking comparative epidemiological, pathogenic and therapeutic research. This study presents the Swiss Canine Cancer Registry, containing case data compiled between 1955 and 2008. The data consist of pathology diagnostic records issued by three veterinary diagnostic laboratories in Switzerland. The tumours were classified according to the guidelines of the International Classification of Oncology for Humans on the basis of tumour type, malignancy and body location. The dogs were classified according to breed, age, sex, neuter status and place of residence. The diagnostic data were correlated with data on the Swiss general dog population and the incidence of cancer in dogs was thus investigated. A total of 67,943 tumours were diagnosed in 121,963 dogs and 47.07% of these were malignant. The most common tumour location was the skin (37.05%), followed by mammary glands (23.55%) and soft tissue (13.66%). The most common tumour diagnoses were epithelial (38.45%), mesenchymal (35.10%) and lymphoid tumours (13.23%). The results are compared with data in other canine registries and similarities in tumour distribution and incidence are noted. It is hoped that this study will mark the beginning of continuous registration of dog tumours in Switzerland, which, in turn, will serve as a reference for research in the fields of animal and human oncology.2
Published in: Journal of Comparative Pathology
Volume: 152
Issue: 2-3
Pages: 161 - 171
ISSN: 0021-9975
Publication date / Date received: 2015-01-01
Publication status: Amsterdam
Publication status: Published
Subjects: Cancer registry, Dog, Epidemiology
Language: English
Keyword: Cancer registry, Dog, Epidemiology
DBID source: FORM-1428656975, WOS-000354001900011
DOI: 10.1016/j.jcpa.2015.02.005
Nebis system number: 000986079
, Ehreke, Ilka, Hess, Stephan, Axhausen, Kay W., 2015 >>
Author(s): Ehreke, Ilka, Hess, Stephan, Axhausen, Kay W.
Title: The German value of time and value of reliability study: Comparing alternative model formulations
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Published
Event name: 14th International Conference on Travel Behavior Research (IATBR)
Event date: July 2015
Place: Windsor, UK
Language: English
DBID source: FORM-1446833466
, Schmid, Basil, Axhausen, Kay W., 2015 >>
Author(s): Schmid, Basil, Axhausen, Kay W.
Title: Testing Efficient Stated Choice Designs
Abstract: Five D-e cient Stated Choice designs are created and tested for their reliability and precision in parameter estimates and value of time (VOT) calculations for a specific mode choice example. The designs are tested based on RP data and choice simulations, which is repeated 2000 times in order to get insights into deviations from the predefined a-priori parameters. A significant e ciency gain in standard errors due to the exclusion of dominant value of time alternatives or the application of MNL designs cannot be found, and the e cient GLM approach with further design conditions solves the design problem very satisfying. All five designs show good performance in estimating the parameters and accurately reproduce the a-priori values which are of special interest: The values of time.2
Published in: Arbeitsberichte Raum- und Verkehrsplanung
Volume: 1032
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Subjects: Stated Choice Experiments, Efficient Designs, Choice Simulation
Language: English
Keyword: Stated Choice Experiments, Efficient Designs, Choice Simulation
DBID source: FORM-1432296071
, Graf, Ramona, Grüntzig, Katrin, Hässig, Michael, Axhausen, Kay W., Fabrikant, Sara, Welle, Molly, Meier, D., Guscetti, Franco, Folkers, Gerd, Otto Vivianne I., Pospischil, Andreas, 2015 >>
Author(s): Graf, Ramona, Grüntzig, Katrin, Hässig, Michael, Axhausen, Kay W., Fabrikant, Sara, Welle, Molly, Meier, D., Guscetti, Franco, Folkers, Gerd, Otto Vivianne I., Pospischil, Andreas
Title: Swiss Feline Cancer Registry: A Retrospective Study of the Occurrence of Tumours in Cats in Switzerland from 1965 to 2008
Abstract: Cancer is one of the leading causes of death in companion animals. Information on the epidemiology of cancer is instrumental for veterinary practitioners in patient management; however, spontaneously arising tumours in companion animals also resemble those in man and can provide useful data in combating cancer. Veterinary cancer registries for cats are few in number and have often remained short-lived. This paper presents a retrospective study of tumours in cats in Switzerland from 1965 to 2008. Tumour diagnoses were coded according to topographical and morphological keys of the International Classification of Oncology for Humans (ICD-O-3). Correlations between breed, sex and age were then examined using a multiple logistic regression model. A total of 18,375 tumours were diagnosed in 51,322 cats. Of these, 14,759 (80.3%) tumours were malignant. Several breeds had significantly lower odds ratios for developing a tumour compared with European shorthair cats. The odds of a cat developing a tumour increased with age, up to the age of 16 years, and female cats had higher risk of developing a tumour compared with male cats. Skin (4,970; 27.05%) was the most frequent location for tumours, followed by connective tissue (3,498; 19.04%), unknown location (2,532; 13.78%) and female sexual organs (1,564; 8.51%). The most common tumour types were epithelial tumours (7,913; 43.06%), mesenchymal tumours (5,142; 27.98%) and lymphoid tumours (3,911; 21.28%).2
Published in: Journal of Comparative Pathology
Volume: 153
Issue: 4
Pages: 266 - 277
ISSN: 0021-9975
Publication date / Date received: 2015-11-01
Publication status: Amsterdam
Publication status: Published
Subjects: Medizin und Gesundheitswesen allgemein|Medicine and Health, General, Cancer registry, Cat, Statistical analysis, Tumour
Language: English
Keyword: Cancer registry, Cat, Statistical analysis, Tumour
DBID source: FORM-1443879317, WOS-000366883300010
DOI: 10.1016/j.jcpa.2015.08.007
Nebis system number: 000986079
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Surveys and tracing: data gaps and data floods
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Torino
Publication status: Published
Event name: PhD Excellence Course "Data intensive approaches to urban and regional development"
Event date: October 14-20, 2015
Place: Torino, Italy
Language: English
DBID source: FORM-1445271515
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Survey challenges, modelling challenges
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Hiroshima
Publication status: Published
Event name: 3rd International Workshop on Advanced Transport Studies (IWATS): International Workshop on context and social interactions in activity and travel decisions
Event date: 4 March 2015
Place: Hiroshima, Japan
Language: English
DBID source: FORM-1425361063
, Sun, Lijun, Axhausen, Kay W., Lee, Der-Horng, Cebrian, Manuel, 2015 >>
Author(s): Sun, Lijun, Axhausen, Kay W., Lee, Der-Horng, Cebrian, Manuel
Title: Supplementary Information for "Quantifying long-term evolution of intra-urban spatial interactions"
Abstract: 2
Published in: Interface : journal of the Royal Society
Volume: 12
Issue: 102
Pages: 20141089
ISSN: 2042-8898, 2042-8901
Publication date / Date received: 2015-01-01
Publication status: London
Publication status: Published
Language: English
DBID source: FORM-1448521685
DOI: 10.1098/rsif.2014.1089
Nebis system number: 006184510
, Kowald, Matthias, Axhausen, Kay W., 2015 >>
Author(s): Kowald, Matthias, Axhausen, Kay W.
Title: Social Networks and Travel Behaviour
Abstract: 2
ISBN: 978-1-4724-3383-1
Publication date / Date received: 2015-01-01
Publication status: Farnham
Publication status: Published
Language: English
DBID source: FORM-1429276414
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Social Network and Transportation
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Unpublished
Language: English
DBID source: FORM-1437804033
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Smart cards and social networks: Simulation and familiar strangers
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Published
Event name: Challenges in Data Science: A complex systems perspective. International Conference
Event date: October 14-17, 2015
Place: Torino, Italy
Language: English
DBID source: FORM-1445271310
, Dubernet, Thibaut, Axhausen, Kay W., 2015 >>
Author(s): Dubernet, Thibaut, Axhausen, Kay W.
Title: Simulating the influence of Social Contacts Spatial Distribution on Mobility Behavior
Abstract: In their daily life, individuals are frequently involved in joint decision making — situations where several individuals have to agree on the actions they will undertake to achieve a joint outcome. Examples in the context of mobility behavior include intra-household task allocation, intra-household vehicle allocation, choice of the time and venue for a dinner with friends or traveling together in the same private vehicle.
In addition to being necessary to predict joint travel and car occupancy, it has been hypothesized that considering explicitly this kind of joint decision process for the case of leisure activities planning might help to improve the forecasts for the choice of the leisure destination, due to the often social nature of such activities. This research is motivated by those results, and aims at including social behavior — including joint decision making and coordination — in a multi-agent transport simulation in a meaningful way. To do so, an algorithm to solve a specific game-theoretic solution concept has been designed.
This framework is used to simulate joint leisure activity location choice. A synthetic social network, generated using the approach of Arentze et al. (2013), is used to obtain realistic geographical distribution of social contacts. Validity of the predicted traveled distances, as well as sensitivity of the results to the geographical properties of the social network will be demonstrated.2
Publication date / Date received: 2015-04-01
Publication status: Ascona
Publication status: Published
Event name: 15th Swiss Transport Research Conference (STRC 2015)
Event date: April 15-17, 2015
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1432372487
, Ciari, Francesco, Becker, Henrik, Axhausen, Kay W., 2015 >>
Author(s): Ciari, Francesco, Becker, Henrik, Axhausen, Kay W.
Title: Sharing is Saving: How collaborative mobility can reduce the impact of energy consumption for transportation
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Ascona
Publication status: Unpublished
Event name: 15th Swiss Transport Research Conference (STRC 2015)
Event date: April 15-17, 2015
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1432370830
, Menghini, Gianluca, Gemperle, Fabian, Seidl, Irmi, Axhausen, Kay W., 2015 >>
Author(s): Menghini, Gianluca, Gemperle, Fabian, Seidl, Irmi, Axhausen, Kay W.
Title: Results of an agent-based market simulation for transferable development rights (TDR) in Switzerland
Abstract: Transferable development rights (TDR) are discussed or applied in various countries for a wide variety of purposes: notably to increase building densities, preserve natural areas, compensate reduced development possibilities, and control land use in rural areas. In Switzerland, TDR, a market-oriented planning instrument, might be used to reduce the land-use problems related to the unsustainable development of the settlement areas and to manage problems with the spatially imbalanced supply and demand of existing undeveloped building zones. Our aim is to briefly introduce a TDR market concept for Switzerland, present an empirically calibrated agent-based TDR market simulation, and finally analyze the detailed simulation results. We ran the simulation with four different settings which allowed an analysis of relevant political and economic questions for Switzerland. The results show that the TDR prices were comparable with existing land prices in Switzerland. In addition, we are able to show that with the trade of TDR it would be possible to downzone 11.4 km2 of building zone land for which there is no demand and to develop 7.4 km2 of new building zone land up to the year 2018. Consequently, the defined building zone area would decrease, which would be in line with political objectives.2
Published in: Environment & Planning. B, Planning and Design
Volume: 42
Issue: 1
Pages: 157 - 183
ISSN: 0265-8135, 1472-3417
Publication date / Date received: 2015-01-01
Publication status: London
Publication status: Published
Subjects: Raumordnung, Städtebau, Landschaftsarchitektur|Spatial and Urban Planning, Landscape Architecture, Transferable development rights (TDR), TDR market, Agent-based modeling (ABM), Market simulation, Market clearing price
Language: English
Keyword: Transferable development rights (TDR), TDR market, Agent-based modeling (ABM), Market simulation, Market clearing price
DBID source: FORM-1413830978, WOS-000352382900010
DOI: 10.1068/b120066p
Nebis system number: 000018603
, Bösch, Patrick M., Ciari, Francesco, Axhausen, Kay W., 2015 >>
Author(s): Bösch, Patrick M., Ciari, Francesco, Axhausen, Kay W.
Title: Required autonomous vehicle fleet sizes to serve different levels of demand
Abstract: Autonomous vehicles (AV) promise many benefits for future mobility. One of them is a reduction of the required total vehicle fleet size, especially if AVs are used predominantly as shared vehicles. This paper presents an investigation of this reduction potential using a simulation approach. Fleets of shared AVs, which serve predefined demands, are simulated with the simulation framework presented in the paper. Different demand scenarios are used, which represent different shares of a spatially and temporally detailed representation of the car travel demand of the greater Zurich region, Switzerland. These demand scenarios are combined with different supply scenarios assuming different AV fleet sizes. It is found that for a given fleet performance target (here 95% of all transport requests are served within 5 minutes) the relationship between served demand and required fleet size is non-linear and the ratio decreases as the demand increases. So there is, as could be expected, a scale effect, which has the important implication that for different levels of demand the fleet is used more or less efficiently. This paper also finds that, if waiting times of up to 10 minutes are accepted, a reduction of up to 90% of the total vehicle fleet can be possible even without active fleet management like vehicle redistribution. Such effects require however, that a large enough share of the car demand can be served by AVs.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 1089
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Subjects: Raumordnung, Städtebau, Landschaftsarchitektur|Spatial and Urban Planning, Landscape Architecture, Verkehr und Transport|Traffic and Transportation, Verkehrsplanung, Strassen- und Eisenbahnbau|Traffic, Highway and Railroad Engineering, Autonomous Vehicles, Fleet Size, Car Sharing, Simulation, MATSim
Language: English
Keyword: Autonomous Vehicles, Fleet Size, Car Sharing, Simulation, MATSim
DBID source: FORM-1444375150
Nebis system number: 004231702
, Ehreke, Ilka, Hess, Stephane, Weis, Claude, Axhausen, Kay W., 2015 >>
Author(s): Ehreke, Ilka, Hess, Stephane, Weis, Claude, Axhausen, Kay W.
Title: Reliability in the German Value of Time Study
Abstract: The German Federal Ministry of Transport and Digital Infrastructure is currently preparing the 2015 Federal Transport Investment Plan. As part of this, it is updating the overall methodology of its cost-benefit analysis meaning values of both reliability (VOR) and travel time (VOT) for personal and business travel will be estimated. While the new VOTs will replace a set of existing values, the VOR will be estimated for the first time as they are not incorporated in the standard appraisal yet. In line with international practice the data collection adopted a two-stage approach: first respondents reported about current trips (revealed preference), which were then systematically varied to be the basis for stated preference experiments. This paper presents the findings of estimating the VOR. In the SP experiments the reliability of the travel modes was presented with different formats. The final model formulation differs in the definition of reliability for private and public transport. For car trips, saving travel time is "worthier" to the respondents than reducing the variability. The calculated VOR for the mean expected unscheduled delay of public transport trips are slightly lower than the VOTs which means that the reliability is here less important to the respondents than relevant travel time saving. One minute of mean expected unscheduled delay and one minute of standard deviation are almost equivalent to one minute of travel time saving (reliability ratio). As this has been the first official estimation of the value of reliability and time for Germany, the values should be reconsidered and updated on a regular basis.2
Publication date / Date received: 2015-01-01
Publication status: Washington, DC
Publication status: Accepted
Event name: 94th Annual Meeting of the Transportation Research Board, TRB 2015
Event date: January 11-15, 2015
Place: Washington, DC, USA
Language: English
DBID source: FORM-1423772467
, Sarlas, Georgios, Fuhrer, Raphael, Axhausen, Kay W., 2015 >>
Author(s): Sarlas, Georgios, Fuhrer, Raphael, Axhausen, Kay W.
Title: Quantifying the agglomeration effects of Swiss public transport between 2000 and 2010
Abstract: This conference contribution deals with the economic effects of public transport supply improvements on productivity, generally referred to as agglomeration effects. To the knowledge of the authors, there has not been a systematic study regarding these effects in Switzerland. To enable that, the development of productivity on a municipal level between 2000 and 2010 is regressed on variables, such as private and public transport accessibility, and variables describing the local economic structure. Productivity is operationalized by the average amount of salaries paid at the location of their generation. Different regression models are tested to account for the spatial and temporal character of the data. We conclude that agglomeration effects are present, quantifiable, and for the case of public transport supply they are found to take values between 1 and 3% for the nationwide spatial analysis level, while for the agglomeration areas the effects are significantly higher and take values between 2 and 4%. Moreover, elasticity values exhibit variation over the analysis period reflecting a differentiated dynamic of the externalities that can result due to the public transport improvements.2
Publication date / Date received: 2015-01-01
Publication status: Ascona
Publication status: Published
Subjects: Agglomeration effects, Public transport improvement, Externalities, Spatial econometrics, Geographically weighted regression
Event name: 15th Swiss Transport Research Conference (STRC 2015)
Event date: April 15-17, 2015
Place: Ascona, Switzerland
Language: English
Keyword: Agglomeration effects, Public transport improvement, Externalities, Spatial econometrics, Geographically weighted regression
DBID source: FORM-1432298052
, Sun, Lijun, Jin, Jian Gang, Axhausen, Kay W., Lee, Der-Horng, Cebrian, Manuel, 2015 >>
Author(s): Sun, Lijun, Jin, Jian Gang, Axhausen, Kay W., Lee, Der-Horng, Cebrian, Manuel
Title: Quantifying long-term evolution of intra-urban spatial interactions
Abstract: Understanding the long-term impact that changes in a city's transportation infrastructure have on its spatial interactions remains a challenge. The difficulty arises from the fact that the real impact may not be revealed in static or aggregated mobility measures, as these are remarkably robust to perturbations. More generally, the lack of longitudinal, cross-sectional data demonstrating the evolution of spatial interactions at a meaningful urban scale also hinders us from evaluating the sensitivity of movement indicators, limiting our capacity to understand the evolution of urban mobility in depth. Using very large mobility records distributed over 3 years, we quantify the impact of the completion of a metro line extension: the Circle Line (CCL) in Singapore. We find that the commonly used movement indicators are almost identical before and after the project was completed. However, in comparing the temporal community structure across years, we do observe significant differences in the spatial reorganization of the affected geographical areas. The completion of CCL enables travellers to re-identify their desired destinations collectively with lower transport cost, making the community structure more consistent. These changes in locality are dynamic and characterized over short timescales, offering us a different approach to identify and analyse the long-term impact of new infrastructures on cities and their evolution dynamics.2
Published in: Interface : journal of the Royal Society
Volume: 12
Issue: 102
Pages: 20141089
ISSN: 2042-8898, 2042-8901
Publication date / Date received: 2015-01-01
Publication status: London
Publication status: Published
Subjects: Complex networks, Smart card, Human mobility, Urban evolution, Transportation
Language: English
Keyword: Complex networks, Smart card, Human mobility, Urban evolution, Transportation
DBID source: FORM-1404765128
DOI: 10.1098/rsif.2014.1089
Nebis system number: 006184510
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Price impacts of environmental services and the attractiveness of architectural form: Recent experiences
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Kyoto
Publication status: Published
Event name: Urban Economics Workshop, Kyoto University
Event date: May 2015
Place: Kyoto, Japan
Language: English
Review status: Conference lecture
DBID source: FORM-1435191056
, Montini, Lara, Axhausen, Kay W., 2015 >>
Author(s): Montini, Lara, Axhausen, Kay W.
Title: Preliminary results: Route choice analysis from multi-day GPS data
Abstract: In recent years recording GPS data has become more common. Location data is collected as part of travel surveys but also as part of different kinds of smartphone applications, such as journey planners, health or running apps and self-tracking applications. Highly accurate, second-by-second GPS data has the main advantage that detailed routes can be observed. The goal of this paper is to describe and model route choice observed in a multi-day multi-modal GPS study of the greater Zurich area.2
Publication date / Date received: 2015-01-01
Publication status: Published
Event name: 15th Swiss Transport Research Conference (STRC 2015)
Event date: 15-17 April 2015
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1432305260
, Sarlas, Georgios, Axhausen, Kay W., 2015 >>
Author(s): Sarlas, Georgios, Axhausen, Kay W.
Title: Prediction of AADT on a nationwide network based on an accessibility-weighted centrality measure
Abstract: In the present paper a direct demand modelling approach for AADT prediction on a nationwide network is presented. A particular focus if given on the construction of a variable that can capture the interregional demand patterns by taking into account the direction of potential interactions over space, called accessibility-weighted centrality, by applying different modifications on the stress centrality measure, tailored for the task of AADT prediction. It is exhibited that it can lead to a significant enhancement on the accuracy of the models. In addition to the already tested models in the literature, two SAR models are estimated and it is shown that GWR and kriging are more appropriate for interpolation purposes, while spatial error and OLS models might give slightly worse results but they have the potential to be applied both for interpolation and forecasting since their estimated parameters are unbiased and consistent. A comparison of models predictive accuracy to the output of a traditional four-step model is conducted to show that direct demand models on nationwide scale can constitute a trustworthy alternative to more advanced, but definitely more data demanding and computationally burdensome models.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 1094
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1438932435
, Axhausen, Kay W., Schmid, Basil, Weis, Claude, 2015 >>
Author(s): Axhausen, Kay W., Schmid, Basil, Weis, Claude
Title: Predicting response rates updated
Abstract: This note updates the first detailed analysis of response burden and response rates reported in Axhausen and Weis (2010). It also updates the rating of stated choice experiments. The analysis of the richer data set shows that the drop in response rate is proportional to the length and complexity of the questionnaire and gives first formulae to predict the response rates.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 1063
Publication date / Date received: 2015-05-01
Publication status: Zürich
Publication status: Published
Subjects: Response burden, Response rate, Stated choice experiment, Rating, Measurement, Predicting
Language: English
Keyword: Response burden, Response rate, Stated choice experiment, Rating, Measurement, Predicting
DBID source: FORM-1431699591
, Schmid, Basil, Axhausen, Kay W., 2015 >>
Author(s): Schmid, Basil, Axhausen, Kay W.
Title: Post-Car World: Survey Methods and Response Behavior in the Pre-Test
Abstract: The investigation of temporal rhythms in activity scheduling, the reshaping in time organisation and mobility tool ownership in combination with improvements in communication and transportation technology play a key role in understanding travel behaviour in a world with restricted car ownership and usage. The empirical basis of this comprehensive three-stage survey is a two-week travel diary that is required to obtain the reference values for the later stated choice and stated adaptation tasks. This paper provides first detailed information about the survey design, recruitment and pre-test fieldwork of this study. An initial investigation of the data and its quality attributes, descriptions of the sampling structure and response behavior are presented. Due to the high response burden and complexity of tasks, this quality check is crucial for improving the later recruitment and survey process.
A high incentive level leads to a significantly higher participation rate, but the net-effect on completing the survey is zero: Once recruited, higher incentives even lead to positive dropout effects. Certain socio-demographic characteristics are consistently overrepresented for the participation and drop-out groups: Season tickets ownership strongly affects participation and completion of the survey, while motorized vehicle ownership positively affects drop-out probability. Findings suggest saliency effects, where response behavior seems to be heavily influenced by the respondents' interest in the Post-Car World topic. While general fatigue effects could not be revealed in this pre-test study, public transport users exhibit a stabler reporting behavior over time than non-public transport users.2
Publication date / Date received: 2015-04-01
Publication status: Ascona
Publication status: Published
Subjects: Long-duration surveys, Stated preference, Response burden, Participation choice, Fatigue effects
Event name: 15th Swiss Transport Research Conference (STRC 2015)
Event date: April 15-17, 2015
Place: Ascona, Switzerland
Language: English
Keyword: Long-duration surveys, Stated preference, Response burden, Participation choice, Fatigue effects
DBID source: FORM-1431962057
, Janzen, Maxim, Axhausen, Kay W., 2015 >>
Author(s): Janzen, Maxim, Axhausen, Kay W.
Title: Population Generation for Continuous Long-Distance Travel Demand Simulations
Abstract: Microsimulations have become more important in the field of travel demand generation over the last years. However, most of the simulations developed focus on daily-life or short-term travel demand, although the share of the overall traffic volume caused by journeys not undertaken in daily life is increasing. The main goal of this research is the development of a new microsimulation, which is able to generate long-distance travel demand for a long period of time, say 6 or 12 months. An important step in this development is the implementation of a population generator. This paper describes in detail the population of the underlying microsimulation. It shows the problems facing a synthesis of a population for a long-term simulation and presents diverse solutions including an advice for the population generation of Long-Term C-TAP. The presented solutions involve the concept of reproducing (joint) distributions as well as the idea of using statistical models.2
Publication date / Date received: 2015-01-01
Event name: 14th International Conference on Travel Behavior Research (IATBR)
Event date: 19-23 July 2015
Place: Windsor, UK
Language: English
DBID source: FORM-1446898021
, Waraich, Rashid A., Charypar, David, Balmer, Michael, Axhausen, Kay W., 2015 >>
Author(s): Waraich, Rashid A., Charypar, David, Balmer, Michael, Axhausen, Kay W.
Title: Performance improvements for large-scale traffic simulation in MATSim
Abstract: In contrast to aggregated macroscopic models of traffic simulation, multi-agent microscopic models, such as MATSim, enable modeling of individual behavior and facilitate more detailed traffic analysis. However, such detailed modeling also leads to an increased computational burden, such that simulation performance becomes critical.

This paper looks specifically at theMATSim simulation framework and proposes several ways to improve its performance. This is achieved through a combination of several approaches, including reducing disk access, decoupling computational tasks, and making use of parallel computing. Additionally, for the traffic simulation, an event-based model is adopted instead of a fixed-increment time advance approach.

Experiments show that by applying these methods, a simulation speedup of four times and more is achieved (depending on the scenario) when compared to the current Java micro-simulation in MATSim.

Initial simulation experiments on a high-resolution navigation network of Switzerland – containing around one million roads and 7.3 million agents – demonstrate that real-world scenarios can now be executed in around one-anda- half weeks using the improved model. Ways to further shorten the computational time of MATSim are also described.2
Book title: Computational Approaches for Urban Environments
Published in: Geotechnologies and the Environment
Volume: 13
Pages: 211 - 233
ISBN: 978-3-319-11468-2, 978-3-319-11469-9
Publication date / Date received: 2015-01-01
Publication status: Cham
Publication status: Published
Subjects: Large-scale traffic simulation, Agent based modeling, Parallelization
Language: English
Keyword: Large-scale traffic simulation, Agent based modeling, Parallelization
DBID source: FORM-1425653099, WOS-000357510900010, SCOPUS-84943785656
DOI: 10.1007/978-3-319-11469-9_9
, Horni, Andreas, Axhausen, Kay W., 2015 >>
Author(s): Horni, Andreas, Axhausen, Kay W.
Title: Online Grocery Shopping Survey
Abstract: The discrete choice modeling framework plays a dominant role in travel demand modeling. It is particularly suitable for choices with a compact choice set, such as mode choices. However, for spatial choices such as route or destination choices, which are in general characterized by a large number of alternatives, the choice set formation step poses crucial and to date unsolved methodological and empirical problems. This online survey provides data for stepping towards solving these important problems. The publicly available Web-based tool enabling an empirical approach to destination choice set formation is publicly available.2
Published in: Travel Survey Metadata Series
Volume: 59
Publication date / Date received: 2015-03-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1425359791
, Fuhrer, Raphael, Axhausen, Kay W., 2015 >>
Author(s): Fuhrer, Raphael, Axhausen, Kay W.
Title: New Historical Data: The Reconstruction of 1950's Global Road Network Using American Army Maps
Abstract: This paper presents a new historical road network data set, capturing conditions in 1950 and covering large part of the world. Its generation is documented in detail, its features are reported and Nigeria is employed as an example of a geographical information system used to generate historical travel times. This exercise should serve as a starting point for further (historical) transport studies. The main sources of this data set are former US Army Map Service (AMS) maps and a range of historical statistics. As far as the authors can ascertain, such comprehensive and detailed historical transport data has not been available until this point, but it now enables examination of various historical and current transport-related research questions using spatial and time-variant data. The purpose of this paper is: first, to introduce this historical road network data and to position it in the existing literature and research tradition; second, to explain how the network was generated; third, to present the authors' approach to model historical speeds and travel times and; fourth, show how to use such information by applying it in the Nigeria case study.2
Book title: TRB 94th Annual Meeting Compendium of Papers
Pages: 15-3145
Publication date / Date received: 2015-01-01
Publication status: Published
Event name: 94th Annual Meeting of the Transportation Research Board (TRB2015)
Event date: January 11-15, 2015
Place: Washington, DC, USA
Language: English
DBID source: FORM-1422896557
, Harding, Christopher, Miller, Eric J., Patterson, Zachary, Axhausen, Kay W., 2015 >>
Author(s): Harding, Christopher, Miller, Eric J., Patterson, Zachary, Axhausen, Kay W.
Title: Multiple purpose tours and efficient trip chaining. An analysis of the effects of land use and transit on travel behaviour in Switzerland
Abstract: Using the 2010 Swiss Microcensus on mobility and transportation, a new approach to charac- terizing tours is explored. Building on recent work by Ho & Mulley (2013), we elaborate upon their typology of tours, developed based not only on tour complexity, but also on the spatial distribution of destinations within tours. Our adapted typology is then applied to investigate the relationship between land use, tour type and mode use. Our results mirror previous findings that complexity should not be seen as a deterrent to transit use overall, but rather that the dis- tribution of destinations found within a tour must be taken into account if one seeks to better understand complexity and chaining effects on mode use. While much research focuses on land use at the home location, we find that land use at destinations is a much better predictor of chaining trips in such a way as to maximize the likelihood of transit and walking both in simple and complex tours. Finally, a more complete definition is provided for "efficient trip chaining" within tours, allowing one to better understand how low-detour or short trips can be integrated in complex tours, allowing for more sustainable travel choices.2
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Event name: 94th Annual Meeting of the Transportation Research Board (TRB 2015)
Event date: January 11-15, 2015
Place: Washington, D.C., USA
Language: English
DBID source: FORM-1406995791
, Erath, Alexander L., Eggermond, Michael A.B. van, Ordóñez Medina, Sergio A., Axhausen, Kay W., 2015 >>
Author(s): Erath, Alexander L., Eggermond, Michael A.B. van, Ordóñez Medina, Sergio A., Axhausen, Kay W.
Title: Modelling for Walkability: understanding pedestrians' preferences in Singapore
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Event name: 14th International Conference on Travel Behavior Research (IATBR)
Event date: July 19-23, 2015
Place: Windsor, UK
Language: English
DBID source: FORM-1447165397, FORM-1446796366
, Ehreke, Ilka, Axhausen, Kay W., 2015 >>
Author(s): Ehreke, Ilka, Axhausen, Kay W.
Title: Modellierung von Arbeitsplatzentscheidungen in Mobilitätsbiographien
Abstract: Mobilitätsbiographien, das heißt die Analyse des Verkehrsverhaltens und der Verfügbarkeit von Mobilitätswerkzeugen im Lebensverlauf, ist ein relativ neues Feld in der Verkehrsforschung. Die Erwerbsbiographien sind als Teil von ihnen zu verstehen, auch wenn sie ein eigenes Interessengebiet darstellen. In einer Retroperspektivbefragung der TU Dortmund werden zusammen mit der ETH Zürich und der Goethe Universität Frankfurt Informationen zu den individuellen Mobilitätsbiographien von drei Generationen eines Haushaltes erfasst. Anhand dieses umfangreichen Datensatzes werden mithilfe einer Überlebenszeit-Analyse für rekurrente Ereignisse Einflüsse auf die Entscheidung für einen Arbeitswegwechsel, sowie Unterschiede zwischen Generationen und Geschlechtern im Zeitverlauf statistisch analysiert. Neben Generationeneffekten konnte der Effekt von sogenannten Schlüsselereignissen (key events) in den Daten nachgewiesen werden. Ebenso konnte die starke Interdependenz von Arbeitsplatz- und Wohnortwahl gezeigt werden. Dies bestätigt die Vermutung, dass sich gewisse Prozesse im Lebensverlauf parallel bewegen2
Book title: Räumliche Mobilität und Lebenslauf : Studien zu Mobilitätsbiografien und Mobilitätssozialisation
Published in: Studien zur Mobilitäts- und Verkehrsforschung
Pages: 261 - 276
ISBN: 978-3-658-07545-3, 978-3-658-07546-0
Publication date / Date received: 2015-01-01
Publication status: Wiesbaden
Publication status: Published
Language: German
DBID source: FORM-1413017070
DOI: 10.1007/978-3-658-07546-0_14
, Bodenmann, Balz R., Axhausen, Kay W., 2015 >>
Author(s): Bodenmann, Balz R., Axhausen, Kay W.
Title: Modeling the life-cycle of firms and its effect on relocation choice
Abstract: 2
Book title: Integrated transport and land use modeling for sustainable cities
Pages: 201 - 218
ISBN: 0-415-72910-6, 978-2-940222-72-8, 978-0-415-72910-9
Publication date / Date received: 2015-01-01
Publication status: Lausanne
Publication status: Published
Subjects: Raumordnung, Städtebau, Landschaftsarchitektur|Spatial and Urban Planning, Landscape Architecture, Verkehr und Transport|Traffic and Transportation
Language: English
DBID source: FORM-1425357487
Nebis system number: 010247752
, Ciari, Francesco, Balac, Milos, Axhausen, Kay W., 2015 >>
Author(s): Ciari, Francesco, Balac, Milos, Axhausen, Kay W.
Title: Modeling carsharing with the agent-based simulation MATSim: state of the art, applications and future developments
Abstract: There is already a large literature on car sharing, but understanding its impact on the transportation system needs additional work. One of the main limits of the existing research is that such modes have been mostly analyzed as isolated systems. As they were niche products, it was not easy to include them in comprehensive models of transport, and in a way it even did not make sense. But their current popularity and their expected further growth, completely change the picture. Transport model systems where such mobility concepts are explicitly modeled along all other modes will be crucial in the near future to get an insight on travel behavior impacts and to assess possible future scenarios representing the impact of long term mobility decisions. This paper describes how carsharing demand is modeled within an activity-based multi agent simulation of transport called MATSim (www.matsim.org). It draws from a series of papers written between 2009 and 2015 by the authors and is part of a research effort which ultimate goal is to build a predictive and policy-sensitive model that can be used by practitioners and policy-makers in order to test any type of carsharing scenarios. This paper summarizes the work done, provides some examples of applications, addresses current limitations and shortly reports on ongoing and planned developments.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 1090
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1438616325
, Farooq, Bilal, Müller, Kirill, Bierlaire, Michel, Axhausen, Kay W., 2015 >>
Author(s): Farooq, Bilal, Müller, Kirill, Bierlaire, Michel, Axhausen, Kay W.
Title: Methodologies for synthesizing populations
Abstract: 2
Book title: Integrated transport and land use modeling for sustainable cities
Pages: 77 - 94
ISBN: 0-415-72910-6, 978-2-940222-72-8, 978-0-415-72910-9
Publication date / Date received: 2015-01-01
Publication status: Lausanne
Publication status: Published
Language: English
DBID source: FORM-1376987080
Nebis system number: 010247752
, Schmutz, Simon, Axhausen, Kay W., 2015 >>
Author(s): Schmutz, Simon, Axhausen, Kay W.
Title: Master Thesis: Choice Sets
Abstract: The quality of mode choice prediction is essential on the way to a resource-efficient transport system. Commonly, mode choice is modelled on the trip or tour level, but a systematic evaluation of the definition of appropriate analytical units and aggregation rules is missing so far. This is in analogy to the 'modifiable areal unit problem' (MAUP) in statistical geography, in the sense that the definitions applied can affect the result. In order to find evidence for unit definition with respect to mode choice, a choice set is generated on the basis of the Swiss Microcensus 2010 data, and multinomial logit-models are estimated for different aggregation levels. Results show that marginal substitution rates derived from coefficient estimates do not always show plausible values, which could be due to the known correlation between attributes in RP data. It can be concluded that regarding the trade-off between computation cost and prediction precision, the tour level might be appropriate level for mode choice. It has to be noted however, that meaningful definitions will be subject to change with a more multi-modal behaviour.2
Published in: Travel Survey Metadata Series
Volume: 58
Publication date / Date received: 2015-02-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1424883503
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: MATSim: An agent-based framework of travel demand and traffic flow
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Unpublished
Event name: 15th COTA International Conference of Transportation Professionals (CICTP 2015)
Event date: July 25-27 2015
Place: Bejing, China
Language: English
DBID source: FORM-1437803422
, Janzen, Maxim, Axhausen, Kay W., 2015 >>
Author(s): Janzen, Maxim, Axhausen, Kay W.
Title: Long-Term-C-TAP Simulation: Generating Long Distance Travel Demand for a full Year
Abstract: To date, travel demand generation for microscopic traffic simulation has focused mostly on reproducing daily life. This stands in contrast to the significant part of traffic caused by journeys related to activities not usually undertaken in daily life. The paper investigates the possibilities of extending an existing approach (continuous target-based planning) to cover some of these exceptional activities. A microscopic continuous target-based model applies the idea of agents which try to satisfy individual, behavioral targets by execution of corresponding activities. The decisions on the executed activities are based on heuristic functions. Simulations using this model usually produce data for a few weeks and thus take only daily life into account. This paper shows how to modify this approach in order to generate travel demand for a full year. The main proposed modification is a new model for the activity planing module. This leads to an enormous reduction in the number of calibration parameters in comparison to similar models. Additionally, validation results show that the simulation is able to produce reasonable travel demand patterns including the impact of weekdays as well as seasonal effects.2
Book title: TRB 94th Annual Meeting Compendium of Papers
Pages: 15-2759
Publication date / Date received: 2015-01-01
Publication status: Washington, DC
Publication status: Published
Event name: 94th Annual Meeting of the Transportation Research Board (TRB 2015)
Event date: January 11-15, 2015
Place: Washington, DC
Language: English
DBID source: FORM-1407399145
, Sarlas, Georgios, Axhausen, Kay W., 2015 >>
Author(s): Sarlas, Georgios, Axhausen, Kay W.
Title: Localized speed prediction with the use of spatial simultaneous autoregressive models
Abstract: This paper examines how to employ spatial regression modelling as a direct demand modelling approach to provide localized speed estimates in a large scale network. In particular, four different spatial simultaneous autoregressive (SAR) models are estimated and compared to an ordinary linear regression in order to highlight and evaluate their capability of explaining transport related phenomena and resolving issues that arise from the underlying spatial dependence. A particular focus is given on the identification, the construction, and the selection of the spatial weighting matrices. We conclude that the spatial autocorrelation (SAC) model outperforms the other SAR models, resolving spatial dependence issues, and thus is the proposed one for speed prediction purposes.2
Publication date / Date received: 2015-01-01
Publication status: Published
Event name: 94th Annual Meeting of the Transportation Research Board
Event date: January 11-15, 2015
Place: Washington, D.C., USA
Language: English
DBID source: FORM-1407397651
, Schirmer, Patrick M., Zöllig, Christof, Müller, Kirill, Axhausen, Kay W., 2015 >>
Author(s): Schirmer, Patrick M., Zöllig, Christof, Müller, Kirill, Axhausen, Kay W.
Title: Land use and transport microsimulation on the canton of Zürich using UrbanSim
Abstract: 2
Book title: Integrated transport and land use modeling for sustainable cities
Pages: 461 - 509
ISBN: 0-415-72910-6, 978-2-940222-72-8, 978-0-415-72910-9
Publication date / Date received: 2015-01-01
Publication status: Lausanne
Publication status: Published
Language: English
DBID source: FORM-1377676226
Nebis system number: 010247752
, Kowald, Matthias, Axhausen, Kay W., 2015 >>
Author(s): Kowald, Matthias, Axhausen, Kay W.
Title: Introduction: Transport Planning and social network analysis - An introduction
Abstract: 2
Book title: Social Networks and Travel Behaviour
Published in: Transport and society
Pages: 1 - 4
ISBN: 978-1-4724-3383-1, 1-4724-3383-1, 978-1-4724-3384-8, 1-4724-3384-X, 978-1-4724-3385-5, 1-4724-3385-8
Publication date / Date received: 2015-01-01
Publication status: Farnham
Publication status: Published
Subjects: Verkehr und Transport|Traffic and Transportation, Soziologie, Ethnologie und Geschlechter-fragen|Sociology, Ethnology and Gender Studies, Verkehrsplanung, Strassen- und Eisenbahnbau|Traffic, Highway and Railroad Engineering
Language: English
DBID source: FORM-1446802494
Nebis system number: 010445233
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Intelligent mobil - weiter gedacht
Abstract: 2
Published in: Internationales Verkehrswesen
Volume: 67
Issue: 1
Pages: 3 - 3
ISSN: 0020-9511
Publication date / Date received: 2015-01-01
Publication status: Hamburg
Publication status: Published
Subjects: Verkehr und Transport|Traffic and Transportation
Language: German
DBID source: FORM-1424106205
Nebis system number: 000023346
, Vitins, Basil J., Erath, Alexander L., Axhausen, Kay W., 2015 >>
Author(s): Vitins, Basil J., Erath, Alexander L., Axhausen, Kay W.
Title: Integration of a Capacity Constrained Workplace Choice Model: Recent Developments and Applications for an Agent-Based Simulation in Singapore
Abstract: Destination choice models can be embedded in travel demand models to understand travel behavior and forecast future scenarios. Utility-based destination choice models can account for individual travel behavior and are therefore suitable for agent-based models. Accounting for destination capacities is also in line with the agent-based theory. Therefore, this paper addresses the possibility and impact of introducing capacity constraints and their effect on choice behavior, as well as the feasibility to apply such an approach in agent-based micro-simulations with individual specific characteristics for each agent.

This paper describes a workplace choice model and its application in a large-scale simulation of Singapore. One methodological and one technical achievement are highlighted in this paper. Regarding the methodological progress, capacity limitations are introduced at workplaces, and a methodology based on shadow prices is employed to consider the capacity limitations within the choice model applications. A robust optimization methodology efficiently assigns the commuters to workplaces while respecting the individual preferences of commuters. The technical achievement profits from recent computational advances. The workplace choice model is estimated with a comprehensive utility function on a large data set and 103 destinations and applied and cross-checked on the entire population. A reasonable model fit and robust parameters are achieved by obviating sampling techniques. The proposed methodology is efficiently applied for commuting trips with minor travel time changes compared to a reference sample.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 1106
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Subjects: Raumordnung, Städtebau, Landschaftsarchitektur|Spatial and Urban Planning, Landscape Architecture, Verkehr und Transport|Traffic and Transportation, Verkehrsplanung, Strassen- und Eisenbahnbau|Traffic, Highway and Railroad Engineering
Language: English
DBID source: FORM-1443612032
Nebis system number: 004231702
, Ciari, Francesco, Axhausen, Kay W., 2015 >>
Author(s): Ciari, Francesco, Axhausen, Kay W.
Title: Insights on the Swiss way to "Peak Car"
Abstract: For decades industrialized countries experienced growing levels of car ownership and car travel. This has been widely seen as a "natural" consequence of economic development reflecting the wish of individuals to enjoy easy access to a wider palette of activity opportunities. This came, however, with several negative impacts for the society like inefficient land and energy use, air and noise pollution, and road fatalities, to name a few. The discussion on how to limit such impacts, or even how to change paradigm toward more sustainable transport systems, has also spanned the last decades and especially in recent years acquired an impressive momentum among researchers, policy makers and society at large. Several policies have been adopted over the years to reduce the externalities due to intensive car use. It is interesting to note that in the overwhelming majority of cases, it was taken as granted that the trend toward more car mobility would have not stopped any time soon. In the last few years, though, some researchers, observing travel diary and count data, came to the conclusion that car use might have "peaked" (Goodwin, 2011), meaning that in the future car could have a still important but diminished role, especially for urban dwellers. Indeed, various studies confirm that in several industrialized countries car ownership and car use are stagnating, or even regressing (Kuhnimhof et al., 2013, Le Vine and Jones, 2012). These results would suggest that today's younger adults are less attracted by car driving than their predecessors were. The discussion is nevertheless still open on how solid this trend is and what actually caused it. This paper aims to add to the discussion dealing with a country, Switzerland, which so far has been investigated only marginally in this stream of research.2
Publication date / Date received: 2015-01-01
Publication status: S.l.
Publication status: Published
Event name: 14th International Conference on Travel Behavior Research (IATBR)
Event date: July 19-23, 2015
Place: Old Windsor, United Kingdom
Language: English
DBID source: FORM-1441877256
, Kowald, Matthias, Arentze, Theo A., Axhausen, Kay W., 2015 >>
Author(s): Kowald, Matthias, Arentze, Theo A., Axhausen, Kay W.
Title: Individuals' spatial social network choice : model-based analysis of leisure-contact selection
Abstract: Leisure travel holds an important share of the overall amount of travel. However, efforts in transport planning to model and explain leisure travel have been rather limited for a long time. Only recently, a subcommunity of researchers began to use the methods of social network analysis. Existing research in this area, however, has focused on social interaction behaviour of individuals given their social networks. The selection of friends underlying the generation of social networks has received less attention. To fill this gap, our aims in this study are a descriptive analysis of leisure network data, and specification and estimation of a utility-based friendship-decision model. Data on connected personal leisure networks are obtained by using the personal network approach in an extended survey framework. Results offer insights into the decision of who is in contact with whom and which combinations of attributes have either an increasing or decreasing effect on the utility of a leisure relationship. The model can be used to simulate social network generation in an agent-based travel-demand simulation and with that enable the consideration of relevant behavioural patterns in the simulation of leisure trips.2
Published in: Environment & Planning B, Planning and Design
Volume: 42
Issue: 5
Pages: 857 - 869
ISSN: 0265-8135, 1472-3417
Publication date / Date received: 2015-09-01
Publication status: London
Publication status: Published
Subjects: Raumordnung, Städtebau, Landschaftsarchitektur|Spatial and Urban Planning, Landscape Architecture, Social network analysis, Population-wide network, Leisure travel, Network generation, Utility-based friendship-formation model
Language: English
Keyword: Social network analysis, Population-wide network, Leisure travel, Network generation, Utility-based friendship-formation model
DBID source: FORM-1409823297, SCOPUS-84941784177, WOS-000361488300005
DOI: 10.1068/b130027p
Nebis system number: 000018603
, Dubernet, Thibaut, Axhausen, Kay W., 2015 >>
Author(s): Dubernet, Thibaut, Axhausen, Kay W.
Title: Implementing a household joint activity-travel multi-agent simulation tool: First results
Abstract: In recent years, there has been a growing interest in the social dimension of travel, and how travel decisions are influenced not only by the global state of the transportation system, but also by joint decisions and interactions with social contacts. Such joint decisions are particularly important for a variety of behaviors: leisure activities are often performed with social contacts, and their location and timing is thus the result of a joint process; household "maintenance" tasks, such as grocery shopping or driving the children to school, are allocated to one single member; and of course joint (car) travel is the result of complex joint decisions. For this reason, the need to include household and friendship relationships into mobility simulation frameworks is becoming more and more obvious. This paper presents a game theoretic framework for the study of joint decision making, as well as an algorithm to search for approximate solutions of the resulting game. An implementation of this algorithm for the household case, using the MATSim software framework, is proposed and tested. The implementation of this algorithm is tested for the Zürich area, Switzerland, focusing on the possibility to perform joint trips. Those results allow to identify strengths and weaknesses of the approach, and directions for future work.2
Published in: Transportation
Volume: 42
Issue: 5
Pages: 753 - 769
ISSN: 0049-4488, 1572-9435
Publication date / Date received: 2015-09-01
Publication status: Springer
Publication status: Published
Subjects: Verkehr und Transport|Traffic and Transportation, Wirtschaft, Recht und Politik allgemein|Economics, Law and Politics, General, Multi-agent, Joint decisions, Household, Simulation
Language: English
Keyword: Multi-agent, Joint decisions, Household, Simulation
DBID source: FORM-1438599755, SCOPUS-84942506421, WOS-000361888300003
DOI: 10.1007/s11116-015-9645-7
Nebis system number: 000056550
, Becker, Henrik, Ciari, Francesco, Brignoni, Massimo, Axhausen, Kay W., 2015 >>
Author(s): Becker, Henrik, Ciari, Francesco, Brignoni, Massimo, Axhausen, Kay W.
Title: Impacts of a new free-floating carsharing system traced with a Smartphone App
Abstract: Ubiquitous mobile devices such as smartphones allow real-time exchange of information. This enables new forms of social interactions and supports the idea of a shared economy. One of the best-known and most widespread applications in a shared economy is carsharing of which free-floating carsharing benefits the most from the new communication technologies. Since free floating carsharing is a new service, knowledge about its impacts is still very limited. Empirical studies in the few cities with the service have identified major user groups and their motivations to use free-floating carsharing. In addition, they analysed the dominant usage patterns as well as environmental implications (e.g. Schmöller et al., 2014; Kopp et al., 2013). Yet, these facets have been treated separately leaving possibly important links undetected. Moreover, it is still unclear how a growing diffusion of free-floating carsharing services affects overall travel behaviour (Seattle Department of Transportation, 2014). In this paper, we attempt a comprehensive investigation of the usage and impacts of free-floating carsharing based on a detailed analysis on the individual users. Given the sporadic nature of carsharing use, this goal implies surveying carsharing users for several days. However, traditional survey techniques would impose a large burden on the respondents and would therefore suffer from a low response rate and also from underreporting. Collecting the required data would be too expensive for the operator or the planner, regulator. A different approach is needed. The use of smartphones as observation tool promises a more reliable and more detailed observation of travel behaviour at reasonable cost while reducing the burden for participants. First studies (e.g. Pereira et al., 2013) have produced encouraging results. In this research, a new smartphone tracking app is used to acquire rich revealed preference data on the individual participants and their trips.2
Publication date / Date received: 2015-01-01
Publication status: Published
Event name: 14th International Conference on Travel Behavior Research (IATBR 2015)
Event date: July 19-23, 2015
Place: Windsor, UK
Language: English
DBID source: FORM-1444554326
, Fuhrer, Raphael, Walker, Philipp, Sarlas, Georgios, Axhausen, Kay W., Neuenschwander, René, 2015 >>
Author(s): Fuhrer, Raphael, Walker, Philipp, Sarlas, Georgios, Axhausen, Kay W., Neuenschwander, René
Title: Gesamtwirtschaftliche Effekte des öffentlichen Verkehrs mit besonderer Berücksichtigung der Verdichtungs- und Agglomerationseffekte - Eine empirische Studie im Schweizer Kontext
Abstract: Diese Studie hat folgende Ziele: Die Agglomerationseffekte (wider economic benefits) erfassbar machen, sie für die Schweiz zu quantifizieren und ihre räumliche Dynamik zu analysieren. Dabei liegt der Fokus auf dem Öffentlichen Verkehr. Dazu werden mittels Strukturdaten, Erreichbarkeitsdaten und wirtschaftlichen Daten für den Zeitraum 2000, 2005 und 2010 auf Gemeindeebene verschiedene Regressionen geschätzt. Deren Resultate zeigen die folgenden Effekte für die Schweiz: Eine Verbesserung der ÖV-Erreichbarkeit um 100% führt zu einer Produktivitätssteigerung von durchschnittlich 1 bis 2%. In urban geprägten Gegenden ist dieser Effekt in etwa doppelt so hoch. Im Vergleich zu anderen Einflussvariablen auf die Produktivität liegt diese Elastizität im mittleren Einflussbereich und ist darum wichtig. Sie schwankt jedoch regional. Mit Hilfe eines Shift-Share-Ansatzes wird weiter ermittelt, welche Regionen in welcher Form von einer besseren ÖV-Erschliessung wirtschaftlich profitieren kÖnnen. Eine verbesserte ÖV-Erreichbarkeit führte zwischen 2000 und 2010 insbesondere in grossen und urbanen Gemeinden zu einer Zunahme der Arbeitsplätze. In kleineren und ländlicheren Gemeinden ist dagegen tendenziell ein negativer Zusammenhang festzustellen. Umgekehrt ist der Zusammenhang bei den Arbeitskräften, also der WohnbevÖlkerung: Eine Verbesserung der ÖV-Erreichbarkeit führt in kleineren Gemeinden tendenziell zu einer Zunahme der wohnhaften Arbeitskräfte.2
Book title: Jahrbuch 2015 Schweizerische Verkehrswirtschaft
Pages: 29 - 42
ISBN: 3-906532-27-5
ISSN: 1423-4459
Publication date / Date received: 2015-01-01
Publication status: St. Gallen
Publication status: Published
Language: German
DBID source: FORM-1442389893
Nebis system number: 000978592
, Axhausen, Kay W., Bischof, Tamara, Fuhrer, Raphael, Neuenschwander, René, Sarlas, Georgios, Walker, Philipp, 2015 >>
Author(s): Axhausen, Kay W., Bischof, Tamara, Fuhrer, Raphael, Neuenschwander, René, Sarlas, Georgios, Walker, Philipp
Title: Gesamtwirtschaftliche Effekte des öffentlichen Verkehrs mit besonderer Berücksichtigung der Verdichtungs- und Agglomerationseffekte
Abstract: Für die Schweiz gibt es noch keine empirischen Untersuchungen zu den agglomeration economies, ein Nutzenelement des Verkehrs, das in den letzten Jahren intensiv diskutiert wurde. Die Hypothese ist, dass durch eine verbesserte Erreichbarkeit von Agglomerationen oder anderen Gebieten ein grösserer Arbeits-, Zuliefer- und Absatzmarkt entsteht, der zu zusätzlichen Wachstumseffekten führt. Dieser Effekt ist teilweise als zusätzlicher Nutzen (wider economic benefit) zu verstehen, der über die üblicherweise in Kosten-Nutzen-Analysen festgestellten Zeitgewinne und anderen Nutzenelemente hinausgeht.2
Published in: Arbeitsbericht IVT
Volume: 1079
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Accepted
Language: German
DBID source: FORM-1433780835
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Gefangen im Netz?
Abstract: Weltweit wachsen die Megastädte und immer mehr Menschen zieht es in grosse Agglomerationen. Wie können wir heute die besten Verkehrsnetze für die Städte von morgen planen?2
Published in: ETH News
Publication date / Date received: 2015-02-10
Publication status: Zürich
Publication status: Published
Language: German
DBID source: FORM-1423657160
, Axhausen, Kay W., Fourie, Pieter J., Erath, Alexander, Ordóñez Medina, Sergio A., 2015 >>
Author(s): Axhausen, Kay W., Fourie, Pieter J., Erath, Alexander, Ordóñez Medina, Sergio A.
Title: From Big Data to Smart Data: Developing a Large-scale public transport simulation that runs on Smart Card Data
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Unpublished
Event name: CREATE Symposium on Future Mobility
Event date: July 8-9, 2015
Place: Singapore
Language: English
DBID source: FORM-1437803666
, Axhausen, Kay W., Horni, Andreas, Herrmann, Hans J., 2015 >>
Author(s): Axhausen, Kay W., Horni, Andreas, Herrmann, Hans J.
Title: Final Report: The Risk for a Gridlock and the Macroscopic Fundamental Diagram
Abstract: A solid base for modeling traffic gridlocks and their avoidance by control techniques exists for the strand of aggregate transport modeling. However, transport modeling continuously shifts from aggregate (macroscopic) to disaggregate (microscopic) models in recent years as with the movement from extending to managing the infrastructure, many important new questions came up, which can only be answered having the higher resolution of the disaggregate models (Kitamura (1996, Section 2) and Daly (2013)).2
Published in: Transport and Spatial Planning
Volume: 1062
Publication date / Date received: 2015-03-01
Publication status: Zürich
Publication status: Published
Subjects: Verkehr und Transport|Traffic and Transportation, Verkehrsplanung, Strassen- und Eisenbahnbau|Traffic, Highway and Railroad Engineering
Language: English
DBID source: FORM-1431067202
DOI: 10.3929/ethz-a-010433547
Nebis system number: 010433547
, Schmid, Basil, Schmutz, Simon, Axhausen, Kay W., 2015 >>
Author(s): Schmid, Basil, Schmutz, Simon, Axhausen, Kay W.
Title: Explaining Mode Choice, Taste Heterogeneity and Cost Sensitivity in a Post-Car World
Abstract: This paper analyzes mode choice behavior in a hypothetical future market situation offering innovative mode alternatives - car sharing, carpooling, public transport, taxi, walk and bike, but excluding private cars - and exploring behavioral reactions to changes in different attributes for 52 pre-test respondents (413 choice observations): A factor analysis revealed three latent variables that entered the choice models together with alternative-specific mode attributes and socio-economic characteristics. Results show a large heterogeneity in cost sensitivity, decreasing substantially with higher income. Vehicle owners having conservative and car loving attitudes choose car sharing more frequently relative to public transport and exhibit increased travel cost sensitivity, arguing that disrupting habitual travel behavior may change car users' perception of choice attributes. On the other hand, season ticket owners exhibiting positive attitudes towards public means of transport 'stick' to this mode and also show a lower travel cost sensitivity. Environmental awareness is linked with a general preference for both car sharing and carpooling. This could either suggest that these modes are perceived as convenient and eco-friendly, or that choice behavior is biased by strategic concerns in order to promote these new modes. Mode-specific values of travel time savings are clearly distinct: For car pooling, values are higher than for public transport, while car sharing travel time is valued substantially lower. Verification of the presented results as well as the implementation of refined modeling approaches will be reconsidered as sample size increases.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 1087
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Subjects: Raumordnung, Städtebau, Landschaftsarchitektur|Spatial and Urban Planning, Landscape Architecture, Verkehr und Transport|Traffic and Transportation, Verkehrsplanung, Strassen- und Eisenbahnbau|Traffic, Highway and Railroad Engineering
Language: English
DBID source: FORM-1438614393
Nebis system number: 004231702
, Vitins, Basil J., Axhausen, Kay W., 2015 >>
Author(s): Vitins, Basil J., Axhausen, Kay W.
Title: Evaluation and Reliability of Shape Grammars for Urban Planning and Network Design
Abstract: Shape grammars are increasingly applied in urban simulations and are promising tools for urban design, e.g., in procedural modeling. Shape grammars are interdisciplinary, straightforward, understandable planning tools, which potentially have the chance to overcome the complexity of urban design. Applications of grammars and rule-based methods could be found in cognate fields of architecture, urban and transport planning, geometry, and also in mathematics, and computer sciences.
Applications of shape grammars are described exemplarily for various fields of science. It is found that often a profound evaluation of the effect of certain shape grammar rules is missing in literature. Therefore, a set of four approaches is proposed in this chapter (1) to establish theory of grammars and rule-based approaches, (2) to evaluate existing shape grammar rules, (3) to generate and extract new shape grammars, and (4) to verify complex system wide shape grammars. The four approaches are exemplarily applied in the field of road transport network design; however, migration to urban planning and architecture seems promising for future applications. Reliability is addressed in the evaluation methods to tackle uncertainties in planning.2
Book title: Future City Architecture for Optimal Living
Published in: Springer Optimization and its Applications
Volume: 102
Pages: 161 - 181
ISBN: 978-3-319-15029-1, 978-3-319-15030-7
ISSN: 1931-6828
Publication date / Date received: 2015-01-01
Publication status: New York , NY
Publication status: Published
Subjects: Shape grammar, Rule, Intersection type choice, Urban Simulation, Delay, Reliability, Network, Optimization, Meshedness
Language: English
Keyword: Shape grammar, Rule, Intersection type choice, Urban Simulation, Delay, Reliability, Network, Optimization, Meshedness
DBID source: FORM-1403094219, WOS-000364746200010
DOI: 10.1007/978-3-319-15030-7_9
, Balac, Milos, Ciari, Francesco, Axhausen, Kay W., 2015 >>
Author(s): Balac, Milos, Ciari, Francesco, Axhausen, Kay W.
Title: Evaluating the influence of parking space on the quality of service and the demand for one-way carsharing: a Zurich area case study
Abstract: The increased flexibility of one-way station-based and freefloating carsharing over the traditional round-trip carsharing comes with at a price. These services encounter new problems, like unbalanced distribution of cars during the day, the necessity of the increased parking supply for one-way carsharing, city permissions for parking for freefloating vehicles etc.. Therefore, the importance of the tools to investigate and to deal with this kind of problems is rising. Moreover, tools which are able to represent carsharing simulations on a disaggregate level and where the relationship of the supply with the demand can be analyzed have become a neccesity. The tool that provides these features and the one used in this work is a multi-agent transport simulation framework (MATSim) where carsharing was implemented as an extension. MATSim was used here to investigate one of the important limitations of one-way carsharing - parking. We observed and analyzed the influence of different parking-supplies on the behavior of carsharing users and the quality of service in the city of Zurich. Moreover, we present a strategy which allocates parking spaces to each carsharing station in order to satisfy the demand with the minimum number of parking spaces. The results show that different parking supplies influence the behavior of users, accessibility to carsharing stations, turnover and quality of service differently. The heuristic presented is successful in allocating the parking lots to the existing stations in order to satisfy the potential demand, while keeping the level of accessibility and turnover at the desired level.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 1091
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1438617090
, Tan, Teresa, Chua, Victor, Axhausen, Kay W., 2015 >>
Author(s): Tan, Teresa, Chua, Victor, Axhausen, Kay W.
Title: Ego networks and social geographies in Singapore
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Windsor
Publication status: Published
Event name: Frontiers in Transportation – Workshop
Event date: July 24, 2015
Place: Windsor, UK
Language: English
DBID source: FORM-1437800596
, Kopp, Johanna, Gerike, Regine, Axhausen, Kay W., 2015 >>
Author(s): Kopp, Johanna, Gerike, Regine, Axhausen, Kay W.
Title: Do sharing people behave differently? An empirical evaluation of the distinctive mobility patterns of free-floating car-sharing members
Abstract: Characteristics of users and usage of station-based car-sharing services have been discussed in various studies. First analyses of the free-floating car-sharing model DriveNow have shown that member composition and patterns of use are not very different from those of station-based car-sharing schemes. Nevertheless, free-floating car-sharing members were drawn from a new pool of travellers, they were not attracted by existing station-based car-sharing schemes. This paper goes beyond these analyses and looks not only at the usage of car-sharing services but at the overall travel behaviour of free-floating car-sharing members (FFCS). To the best of our knowledge, this is the first time that the specifics of this travel behaviour have been analysed based on substantial data that was collected specifically for this purpose with an innovative survey design based on a GPS tracking smartphone application. The goal of this study is to contrast the core group of members of the free-floating car-sharing model DriveNow (male, 25-45 years old) with people who do not use car-sharing. Key travel indicators are compared for FFCS and non-car-sharers (NCS) with a special emphasis on type and extend of multimodal travel behaviour within those two groups. The results show higher trip frequency for FFCS and differences in mode choice pattern. FFCS are more intermodal and multimodal in their behaviour. Shares of cycling are significantly higher, shares of private car trips are significantly lower for FFCS compared to NCS. The insights gained in this study can help cities and car-sharing operators to develop framework conditions and services that optimally integrate free-floating car-sharing services into the overall urban transport systems.2
Published in: Transportation
Volume: 42
Issue: 3
Pages: 449 - 469
ISSN: 0049-4488, 1572-9435
Publication date / Date received: 2015-01-01
Publication status: Heidelberg
Publication status: Published
Subjects: Wirtschaft, Recht und Politik allgemein|Economics, Law and Politics, General, Verkehr und Transport|Traffic and Transportation, Free-floating car-sharing, DriveNow, Travel behaviour, Modal split, Multimodality, GPS tracking
Language: English
Keyword: Free-floating car-sharing, DriveNow, Travel behaviour, Modal split, Multimodality, GPS tracking
DBID source: FORM-1428666552, WOS-000353227900004
DOI: 10.1007/s11116-015-9606-1
Nebis system number: 000056550
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Direct Demand Models: A new lease of life?
Abstract: 2
Publication date / Date received: 2015-01-01
Event name: Department of Urban Management, Kyoto University
Event date: May 2015
Place: Kyoto, Japan
Language: English
DBID source: FORM-1437804145
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Die Fahrzeit ist entscheidend
Subtitle: Wissenschaftliche Aspekte des Verkehrs
Abstract: Gemessen an der Reisezeit zwischen zwei Orten ist die Schweiz zwischen 1950 und 2000 auf die Hälfte ihrer Fläche geschrumpft. Die Forderung nach noch besserer Erreichbarkeit steht im Raum. Wie soll das Land damit umgehen? Ein Verkehrsexperte gibt seine Einschätzung.2
Published in: Tec21
Volume: 141
Issue: 7-8
Pages: 26 - 29
ISSN: 1424-800X
Publication date / Date received: 2015-02-01
Publication status: Zürich
Publication status: Published
Language: German
DBID source: FORM-1424877011
Nebis system number: 004028643
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Data problems, modelling challenges
Abstract: 2
Publication date / Date received: 2015-06-01
Publication status: Zurich
Publication status: Published
Language: English
DBID source: FORM-1435191135
, Becker, Henrik, Ciari, Francesco, Axhausen, Kay W., 2015 >>
Author(s): Becker, Henrik, Ciari, Francesco, Axhausen, Kay W.
Title: Comparing Car-Sharing Schemes in Switzerland: User Groups and Usage Patterns
Abstract: Free-floating car-sharing schemes operate without fixed car-sharing stations, ahead reservations or return-trip requirements. Providing fast and convenient motorization, they attract both public transport users and (former) car-owners. Therefore, the environmental impact of these novel systems is hard to estimate. This research uses a difference in difference approach to estimate the impact of free-floating car-sharing on its members' travel behaviour. Data is collected using member surveys combined with a smartphone-based GPS-tracking solution. The results can be directly compared with both a station-based round-trip car-sharing service operating in the same city and a random control group. The findings suggest, that free-floating car-sharing has a similar socio-demographic customer potential as station-based round-trip car-sharing. However, free-floating car-sharing has more active members and is employed for a broader variety of uses. Moreover, the results suggest, that it reduces car-ownership on a level comparable to station-based round-trip car-sharing.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 1092
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Accepted
Language: English
DBID source: FORM-1438774202
, Sun, Lijun, Jin, Jian Gang, Lee, Der-Horng, Axhausen, Kay W., 2015 >>
Author(s): Sun, Lijun, Jin, Jian Gang, Lee, Der-Horng, Axhausen, Kay W.
Title: Characterizing travel time reliability and passenger path choice in a metro network
Abstract: This paper characterizes travel time reliability in a metro network by estimating link cost and its variability. To quantify metro travel time in-depth, we reconstruct a metro network with three types of nodes (departure/arrival, platform and fare gantry) and four types of links (walking, waiting, on-board and transfer) and apply an iterative method to estimate the mean and standard deviation of link costs using real-world travel time observations from smart card data. The key principle of this estimation if to identify those OD pairs with only one realistic path. In a complex metro network, a crucial problem is to identify the paths that passengers choose when multiple realistic alternatives exist. This is important for understanding travel behavior and characterizing assignment models for metro networks. Using the estimated link costs, we can estimate the proportions of passenger choosing each alternative path by applying maximum likelihood estimation. In general, the proposed methodology could be applied to other metro systems with travel time observations available, serving to better understand spatial-temporal demand patterns and passenger path choice behavior.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 916
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Subjects: Metro network, Travel time reliability, Path choice, Travel behavior
Event name: 94th Annual Meeting of the Transportation Research Board (TRB 2015)
Event date: January 11-15, 2015
Place: Washington, D.C., USA
Language: English
Keyword: Metro network, Travel time reliability, Path choice, Travel behavior
DBID source: FORM-1376649049
, Balac, Milos, Ciari, Francesco, Axhausen, Kay W., 2015 >>
Author(s): Balac, Milos, Ciari, Francesco, Axhausen, Kay W.
Title: Carsharing demand estimation
Abstract: Worldwide carsharing has grown significantly in recent years. The traditional round-trip model is no longer the only carsharing model offered. It is now being accompanied by more flexible options such as one-way station-based, free-floating and peer-to-peer carsharing. Moreover, it has become important to have tools that can estimate both the spatial and temporal demand for carsharing services, providing operators with a good instrument for planning their services. The work presented in this paper makes use of the multiagent simulation tool (MATSIM) to investigate the effects of supply on the demand of the existing round-trip service in the Zurich area of Switzerland. Additionally, the results provide guidance for the possible optimization of the carsharing service. Also presented is an implementation of a one-way station-based model as a part of the MATSIM framework as well as an investigation of the potentials of one-way carsharing service in the study area. Results show that there is still untapped potential of round-trip carsharing, but that service might need optimization. Furthermore, because of greater convenience, one-way carsharing would generate slightly less than three times more trips compared with the round-trip option.2
Published in: Transportation Research Record
Volume: 2536
Pages: 10 - 18
ISSN: 0361-1981
Publication date / Date received: 2015-01-01
Publication status: Washington D.C.
Publication status: Published
Language: English
DBID source: FORM-1407405878
DOI: 10.3141/2536-02
Nebis system number: 000024408
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Book Review. Parking Reform Made Easy
Abstract: 2
Published in: DISP: The Planning Review
Volume: 51
Issue: 1
Pages: 103 - 103
ISSN: 0251-3625, 2166-8604
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Subjects: Raumordnung, Städtebau, Landschaftsarchitektur|Spatial and Urban Planning, Landscape Architecture
Language: English
DBID source: FORM-1431702333
DOI: 10.1080/02513625.2015.1038085
Nebis system number: 000981948
, Axhausen, Kay W., Jäggi, Boris, Dobler, Christoph, 2015 >>
Author(s): Axhausen, Kay W., Jäggi, Boris, Dobler, Christoph
Title: Bemessungsverkehrsstärken: Ein neuer Ansatz
Abstract: This report contains the introduction of a probabilistic approach (IVT Approach) for the computation and assessment of travel time losses together with a software program that was developed for that purpose. The software program is implemented in an Excel Sheet. The approach is compared with a different approach from Germany of the same purpose, the estimation of travel time losses in the form of generalized costs. Both approaches are a enhancements of standard processes and compute travel time losses for a whole year, based on an hourly yearlong demand profile. The IVT approach was developed at the Institute of Transport Planning and Systems at the Swiss Federal Institute of Technology in Zürich and is based on a probabilistic computation of the breakdown probability and the following delays, early delays and late delays. The LfV Approach from Germany was developed at the Lehrstuh für Verkehrswesen of the Ruhr-Universität Bochum and is based on a queueing model. Both methodologies are presented and explained in this report as well as compared, using demand profiles from Switzerland and Germany. In the case of low volumes of travel demand, the IVT approach computes more realistic travel time losses and the LfV approach gives higher estimates for very high demand volumes. For medium volumes the results of the two approaches are similar. The typical trendline of the travel time losses as a function of traffic volume are similar for all the different demand profile. Profiles with a more pronounced day peak are more similar then flatter ones. The report also contains examples of application of the two approaches in the Swiss Freeway network that shows that both of the approaches can be suitable, depending on the situation. Over all, we recommend the IVT approach for application in Switzerland.2
Published in: Schlussbericht VSS 2011/103
Publication date / Date received: 2015-01-01
Publication status: Accepted
Language: German
DBID source: FORM-1424842448
, Axhausen, Kay W., Boesch, Patrick M., Ciari, Francesco, Schmid, Basil, 2015 >>
Author(s): Axhausen, Kay W., Boesch, Patrick M., Ciari, Francesco, Schmid, Basil
Title: Autonomous Cars – The next revolution in mobility
Abstract: 2
Published in: SNF-Projektantrag (bewilligt)
Publication date / Date received: 2015-01-01
DBID source: FORM-1431709632
, Sun, Lijun, Lu, Y., Jin, Jian Gang, Lee, Der-Horng, Axhausen, Kay W., 2015 >>
Author(s): Sun, Lijun, Lu, Y., Jin, Jian Gang, Lee, Der-Horng, Axhausen, Kay W.
Title: An integrated Bayesian Approach for passenger flow assignment in metro network
Abstract: This paper proposes an integrated Bayesian statistical inference framework to characterize passenger flow assignment model in a complex metro network. In doing so, we combine network cost attribute estimation and passenger route choice modeling using Bayesian inference. We build the posterior density by taking the likelihood of observing passenger travel times provided by smart card data and our prior knowledge about the studied metro network. Given the high-dimensional nature of parameters in this framework, we apply the variable-at-a-time Metropolis sampling algorithm to estimate the mean and Bayesian confidence interval for each parameter in turn. As a numerical example, this integrated approach is applied on the metro network in Singapore. Our result shows that link travel time exhibits a considerable coefficient of variation about 0.17, suggesting that travel time reliability is of high importance to metro operation. The estimation of route choice parameters conforms with previous survey-based study, showing that showing that the disutility of transfer time is about twice of that of in-vehicle travel time in Singapore metro system.2
Published in: Transportation research Part C, Emerging technologies
Volume: 52
Pages: 116 - 131
ISSN: 0968-090X
Publication date / Date received: 2015-03-01
Publication status: Pergamon
Publication status: Published
Subjects: Verkehr und Transport|Traffic and Transportation, Bayesian inference, Metro network, Travel time, Smart card, Route choice
Language: English
Keyword: Bayesian inference, Metro network, Travel time, Smart card, Route choice
DBID source: FORM-1413040517, SCOPUS-84922756795, WOS-000352252400008
DOI: 10.1016/j.trc.2015.01.001
Nebis system number: 000889058
, Bodenmann, Balz R., Bode, Jeffrey W., Sanchez, Breogan, Zeiler, Alexandra, Furták, Peter, Kuljovský, Milan, Vecchi, I., Axhausen, Kay W., 2015 >>
Author(s): Bodenmann, Balz R., Bode, Jeffrey W., Sanchez, Breogan, Zeiler, Alexandra, Furták, Peter, Kuljovský, Milan, Vecchi, I., Axhausen, Kay W.
Title: An Integrated Land Use Model for Switzerland - Detailed Description of the FaLC Template 2015
Abstract: The main goal of the Swiss Case Study is to test convenience and achievement of the stated ob- jectives for the whole FaLC project. The presented results are an intermediate state of work in progress and refer to the softwares' and models' state in January 2015. FaLC as well as the Swiss Case Study will be further developed.
This report focuses on the different dynamic models that have been implemented in FaLC dur- ing the years 2012 and 2014 and is part of the FaLC documentation. Those implementations will also serve as a template for further Case Studies.
This Working Paper is an extended version of FaLC Working Paper 02.2
Published in: FaLC Working Paper
Volume: 03
Publication date / Date received: 2015-01-01
Publication status: Herisau
Publication status: Published
Language: English
DBID source: FORM-1443024593
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Agent-based or agent based modelling: Reflections on choices, constraints and commitments
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Unpublished
Event name: 14th International Conference on Travel Behavior Research (IATBR 2015)
Event date: July 19-23, 2015
Place: Windsor, UK
Language: English
DBID source: FORM-1437801046
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Agent-based modelling of transport demand and traffic flow
Abstract: 2
Publication date / Date received: 2015-01-01
Publication status: Torino
Publication status: Published
Event name: PhD Excellence Course "Data intensive approaches to urban and regional development"
Event date: October 14-20, 2015
Place: Torino, Italy
Language: English
DBID source: FORM-1445271110
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Activity-based and agent-based modelling: Reflections on choice modelling, simulation and time horizons
Abstract: 2
Publication date / Date received: 2015-06-01
Publication status: Zurich
Publication status: Published
Language: English
DBID source: FORM-1435191383
, Axhausen, Kay W., 2015 >>
Author(s): Axhausen, Kay W.
Title: Activity Spaces, Biographies, Social Networks and their Welfare Gains and Externalities
Abstract: In aiming to understand and model peoples' out-of-home movements, the academic field of transport planning is confronted with two major challenges; firstly, leisure travel is increasing in importance and is more complex and variable than work-related travel; and secondly, traditional aggregated transport models do not include any information on peoples' social interactions or their personal social networks. These two main factors have driven transport planners to focus on peoples' interaction and their social network. Providing an overview of selected exemplary studies, this volume addresses the overlap between transport planning and methods of social network analysis; applied methods of social network analysis and related empirical results; and current challenges and new research questions in this field.2
Book title: Social Networks and Travel Behaviour
Published in: Transport and society
Pages: 5 - 30
ISBN: 978-1-4724-3383-1, 978-1-4724-3384-8
Publication date / Date received: 2015-05-01
Publication status: Burlington, VT
Publication status: Published
Language: English
DBID source: FORM-1428674389
, Janzen, Maxim, Axhausen, Kay W., 2015 >>
Author(s): Janzen, Maxim, Axhausen, Kay W.
Title: Activity Planning in a Continuous Long-Term Travel Demand Microsimulation
Abstract: To date, travel demand generation for microscopic traffic flow simulations and travel demand models focuses on reproducing daily life behavior. This stands in contrast to the significant part of traffic volume caused by journeys related to activities not usually undertaken during daily life.
In the case of long distance travel demand it is necessary to simulate a long period of travel behavior, because long distance trips are usually rare and often last longer than one day. We use and adapt the Continuous Target-based Activity Planning (C-TAP) simulation in order to simulate long distance travel demand for a long time period. The adapted model, Long- Term C-TAP, was used for a simulation of one year. In comparison to other activity driven microsimulations the activities taken account in the Long-Term C-TAP simulation are highly abstracted. Besides the main activity called daily life (including home stays, work, daily shopping etc.) we simulate all stays (e.g. holidays) taking place more than 100km away from the place of residence.
One of the characteristics of long-term and long-distance travel behavior is the enlarged planning horizon, i.e. people tend to plan activities in advance. This fact has to be captured in an agent- based simulation, like Long-Term C-TAP. We will introduce a decision making algorithm based on the minimization of the discomfort, which values each possible series of activities. Each series is defined by activity types for each activity, time periods for each activity and (fixed) travel times between the activities. In order to allow an arbitrary planning horizon the main objective of this algorithm is scalability.2
Publication date / Date received: 2015-04-01
Publication status: Ascona
Publication status: Published
Subjects: Continuous target based model, Long term simulation, Long distance travel demand, Microscopic travel demand simulation, C-TAP
Event name: 15th Swiss Transport Research Conference (STRC 2015)
Event date: April 15-17, 2015
Place: Ascona, Switzerland
Language: English
Keyword: Continuous target based model, Long term simulation, Long distance travel demand, Microscopic travel demand simulation, C-TAP
DBID source: FORM-1432316365
, Zöllig Renner, Christof, Axhausen, Kay W., 2015 >>
Author(s): Zöllig Renner, Christof, Axhausen, Kay W.
Title: A real estate development model with heterogeneous agents
Abstract: 2
Book title: Integrated transport and land use modeling for sustainable cities
Pages: 181 - 200
ISBN: 0-415-72910-6, 978-2-940222-72-8, 978-0-415-72910-9
Publication date / Date received: 2015-01-01
Publication status: Lausanne
Publication status: Published
Language: English
DBID source: FORM-1376914517
Nebis system number: 010247752
, Ehreke, Ilka, Crastes dit Sourd, Romain, Beck, Matthew, Hess, Stephane, Axhausen, Kay W., Holz-Rau, Christian, Scheiner, Joachim, 2015 >>
Author(s): Ehreke, Ilka, Crastes dit Sourd, Romain, Beck, Matthew, Hess, Stephane, Axhausen, Kay W., Holz-Rau, Christian, Scheiner, Joachim
Title: A dynamic approach to long term mobility decisions in the life course
Abstract: The relatively new research field of mobility biographies designates the analyses of long-term mobility behaviour and the availability of mobility tools in a life span. A retrospective survey of the TU Dortmund, ETH Zurich and Goethe University Frankfurt collects data on individual mobility biographies of three different generations in a household with a life-calender. Most of the past long-term decisions made by individuals such as buying a house or changing job affect their preferences in future periods and induce economic constraints in the form of transaction costs. Ignoring these aspects may lead to biased estimated in the analysis. A dynamic probit model is used to identify impacts on the individual decisions on car availability in a life span and tests for differences between gender or is used to include the time dependency of the explanatory variables such as age, the number of children or education. The focus of the paper is to compare the modelling results following common practices in the life course calendar literature, based on random effects probit models with the results obtained with a dynamic random effects probit model with autocorrelation. In contrary to the classic random effects probit model approach the main advantage of the dynamic probit approach is to explicitly model the correlated time-fixed and time-varying unobserved heterogeneity.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 1088
Publication date / Date received: 2015-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1438615282
Nebis system number: 004231702
, Dubernet, Thibaut, Axhausen, Kay W., 2015 >>
Author(s): Dubernet, Thibaut, Axhausen, Kay W.
Title: A Generalization of the MATSim simulation process to Simulate the influence of Social Contacts Spatial Distribution on Mobility Behavior
Abstract: In their daily life, individuals are frequently involved in joint decision making — situations where several individuals have to agree on the actions they will undertake to achieve a joint outcome. Examples in the context of mobility behavior include intra-household task allocation, intra-household vehicle allocation, choice of the time and venue for a dinner with friends or traveling together in the same private vehicle. In addition to being necessary to predict joint travel and car occupancy, it has been hypothesized that considering explicitly this kind of joint decision process for the case of leisure activities planning might help to improve the forecasts for the choice of the leisure destination, due to the often social nature of such activities (Axhausen, 2007). Evidences of the influence of social contacts meetings on activity durations, trip length, or type of activities could be found (Stauffacher et al., 2005; Carrasco and Habib, 2009; Habib and Carrasco, 2011; Moore et al., 2013). This has motivated the inclusion of social networks in simulation frameworks. For instance, (Hackney, 2009) experimented with the co-evolution of social networks and travel patterns in MATSim — without joint decision processes. Other examples include joint decision making (Han et al., 2011; Ronald et al., 2012; Ma et al., 2011, 2012). This research aims at including social behavior — including joint decision making and coordination — in a multi-agent transport simulation in a meaningful way. To this end, the MATSim simulation framework has been extended. MATSim provides a coevolutionary algorithm to search for a user equilibrium over daily plans. The process was modified to shift the solution concept: instead of searching an invidual-based equilibrium, it searches a state without blocking coalitions: a state where no group of agents can all improve the utility they get from their day by changing their plans together, including the posssiblity of joint trips or activities. Of course, adding the possibility to perform joint activities, including joint location choice, increases a lot the size of the search space. Different possible techniques to cope with this were experimented, and are discussed, in terms of a tradeoff between computationnal performance, quality of the results and code maintainability.2
Publication date / Date received: 2015-01-01
Publication status: Singapore
Publication status: Published
Event name: International Workshop on "Behavioural detail and computational demands in agent-based models"
Event date: March 24-26, 2015
Place: Singapore, Republic of Singapore
Language: English
DBID source: FORM-1428659703

 

 

2014

 

, Axhausen, Kay W., 2014 >>
Author(s): Axhausen, Kay W.
Title: Welches Geschwindigkeitsniveau braucht eine Stadt?
Abstract: 2
Publication date / Date received: 2014-01-01
Publication status: Published
Event name: SVI Serie "Optimale Geschwindigkeiten in Siedlungsgebieten"
Event date: December 9, 2014
Place: Zürich, Switzerland
Language: German
DBID source: FORM-1437804714
, Müller, Kirill, Axhausen, Kay W., 2014 >>
Author(s): Müller, Kirill, Axhausen, Kay W.
Title: Using survey calibration and statistical matching to reweight and distribute activity schedules
Abstract: We present the processes employed to generate a 106 member agent-population for a long-range study of 2030 travel in Switzerland. This study is part of an effort to assess the impacts of electric vehicles on energy production and stability of the electric supply network. The process uses methods well established in statistics – survey calibration and statistical matching. Both methods are described, and consistency with known approaches in transportation planning is shown. The paper introduces a new approach that allows exogenous specification of shares of activity types while maintaining representativeness of the population. Survey calibration is applied to satisfy these constraints, and statistical matching allows joining datasets with common variables. The discussion of the results for Switzerland focuses on the quality metrics available and highlights the links between the activity schedules and the total shares of the activity types. Furthermore, the error introduced by the calibration and matching stages is analyzed and quantified, with special emphasis put on uncontrolled sociodemographic and travel variables. The specified activity shares can be replicated almost perfectly; the resulting mean error in the uncontrolled variables is within the range of a few percent. Hence, this approach is a viable alternative to a complicated estimation of an activity schedule model that would be necessary otherwise. Finally, two practical issues – datasets describing different populations and biased surveys – and their effect on the outcome are tested by suitably adjusting the input data.2
Published in: Transportation Research Record
Volume: 2429
Pages: 157 - 167
ISSN: 0361-1981
Publication date / Date received: 2014-01-01
Publication status: Washington DC
Publication status: Published
Subjects: Activity choices, Calibration, Electric vehicles, Energy, Schedules, Travel surveys, Switzerland
Event name: 93rd Annual Meeting Transportation Research Board
Event date: January 12-16, 2014
Place: Washington, DC
Language: English
Keyword: Activity choices, Calibration, Electric vehicles, Energy, Schedules, Travel surveys, Switzerland
DBID source: FORM-1385988023, WOS-000346114100018
DOI: 10.3141/2429-17
, Dubernet, Thibaut, Axhausen, Kay W., 2014 >>
Author(s): Dubernet, Thibaut, Axhausen, Kay W.
Title: Using a MultiAgent Transport Simulation to Study the Impact of the Preference for Joint Activities on Leisure Trip Distance Distribution
Abstract: 2
Publication date / Date received: 2014-01-01
Publication status: Unpublished
Event name: 3rd International Workshop on Citizen Networks (CitiNet 2014) — Satellite meeting of the European Conference on Complex Systems
Event date: September 25, 2014
Place: Lucca, Italy
Language: English
DBID source: FORM-1419951030
, Dubernet, Thibaut, Axhausen, Kay W., 2014 >>
Author(s): Dubernet, Thibaut, Axhausen, Kay W.
Title: Using a Multi-Agent Transport Simulation to Study the Impact of the Preference for Joint Activities on Leisure Trip Distance Distribution
Abstract: 2
Publication date / Date received: 2014-01-01
Publication status: Published
Event name: 3rd Symposium of the European Association for Research in Transportation (hEART 2014)
Event date: September 10-12, 2014
Place: Leeds, UK
Language: English
DBID source: FORM-1411402183
, Montini, Lara, Rieser-Schüssler, Nadine, Horni, Andreas, Axhausen, Kay W., 2014 >>
Author(s): Montini, Lara, Rieser-Schüssler, Nadine, Horni, Andreas, Axhausen, Kay W.
Title: Trip Purpose Identification from GPS Tracks
Abstract: Travel surveys are increasingly taking advantage of global positioning system (GPS) data offering precise route and time observations and potentially reduced response burden. In these surveys, travel diaries are usually constructed automatically, where research on the employed procedures has been focused on mode identification. This paper's goal is progress on trip purpose identification using random forests, a machine-learning approach which has been successfully applied to mode identification. Analysis is based on GPS and accelerometer data collected by 156 participants, taking part in a one-week travel survey in Switzerland completed in 2012. Results show that random forests provide robust trip purpose classification. For ensemble runs, a share of correct predictions between 80 and 85 % was achieved. Different setups of the classifier are possible, and sometimes required by the application context. The classifier's training set and its input variables (feature set) are defined in various ways. Four relevant setups are tested here.2
Published in: Transportation research record
Volume: 2405
Pages: 16 - 23
ISSN: 0361-1981
Publication date / Date received: 2014-01-01
Publication status: Washington, D.C.
Publication status: Published
Language: English
DBID source: FORM-1386676247, WOS-000339602800004
DOI: 10.3141/2405-03
Nebis system number: 000024408
, Axhausen, Kay W., 2014 >>
Author(s): Axhausen, Kay W.
Title: Travel Surveys - A Researcher's View
Abstract: 2
Publication date / Date received: 2014-01-01
Publication status: Published
Event name: 10th International Conference on Transport Survey Methods (ISCTSC14)
Event date: November 16-21, 2014
Place: Leura, Australia
Language: English
DBID source: FORM-1416829740
, Sarlas, Georgios, Axhausen, Kay W., 2014 >>
Author(s): Sarlas, Georgios, Axhausen, Kay W.
Title: Transport Simulation Module: Speed Regression
Abstract: The objective of the current module is to provide a direct and simplified way of estimating velocities for each link of the network of interest. In order to accomplish this, regression modeling is the chosen approach. The main advantage of that choice, in comparison to more advanced and complex demand models (eg four-step travel demand modelling approach, agent-based approaches), is that it can provide a structural equation of the speeds in association with the characteristics that affect the demand for travel but in a significantly less cumbersome way than the aforementioned approaches. The attributes that are used in the regression correspond to only aggregated values where no personal data information can be traced back. More specifically, socio-demographic attributes along with attributes that represent the characteristics of the network are taken into account for that purpose. The objective of the current work is to provide a coherent transport simulation module (regression model) that can be employed within an overall framework of a land-use and transport interaction tool in order to assist a facility location choice analysis.
Published in: Deliverables for the Project: Facility Location Choice Simulation Tool (FaLC)
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1407400312
, Sarlas, Georgios, Axhausen, Kay W., 2014 >>
Author(s): Sarlas, Georgios, Axhausen, Kay W.
Title: Towards a direct demand modeling approach
Abstract: The aim of this paper is to employ spatial regression modelling as a form of direct demand modelling where the speed of each link is the dependent variable of interest. The variables that their inclusion in the regression model is investigated, correspond to only aggregated values where no personal data information can be traced back. More specifically, socio- demographic variables along with variables that represent the network characteristics are taken into account for that purpose. A particular focus is given on the identification and the construction of the spatial weighting matrices. Three different spatial autoregressive models are estimated and compared to the ordinary linear regression to highlight their capability of explaining transport related phenomena.2
Publication date / Date received: 2014-05-01
Publication status: Ascona
Publication status: Published
Subjects: Spatial regression, Demand modelling, Speed regression
Event name: 14th Swiss Transport Research Conference (STRC 2014)
Event date: May 14-16, 2014
Place: Ascona, Switzerland
Language: English
Keyword: Spatial regression, Demand modelling, Speed regression
DBID source: FORM-1400091571
, Schirmer, Patrick M., Eggermond, Michael A.B. van, Axhausen, Kay W., 2014 >>
Author(s): Schirmer, Patrick M., Eggermond, Michael A.B. van, Axhausen, Kay W.
Title: The role of location in residential location choice models
Subtitle: A review of literature
Abstract: Geospatial data available to researchers has increased tremendously over the last several decades, opening up opportunities to define residential location in multiple ways. This has led to a myriad of variables to define "location'' in residential location choice models. In this paper, we propose a common classification for location variables and categorize findings from a wide range of studies. We find similar preferences but different measurement methods and market segments for locations across different study regions. Recent studies consider the residential unit as choice alternative, making it possible to include a detailed description of the built environment. However, these studies are still limited in number and the inclusion of socioeconomic environment is more common. Transport land-use models can benefit from the inclusion of points of interest, such as schools, network distances, and the distance to previous locations. For the results of location choice models to be transferable to different disciplines, and avoid multi-collinearity, it is necessary to present different model specifications, including variables of interest in different disciplines.2
Published in: Journal of transport and land use
Volume: 7
Issue: 2
Pages: 3 - 21
ISSN: 1938-7849
Publication date / Date received: 2014-01-01
Publication status: Minneapolis
Publication status: Published
Subjects: Residential location choice, Discrete choice, Land-use, Location
Language: English
Keyword: Residential location choice, Discrete choice, Land-use, Location
DBID source: FORM-1393588308
DOI: 10.5198/jtlu.v7i2.740
Nebis system number: 010198325
, Waraich, Rashid A., Ranganathan, S., Axhausen, Kay W., 2014 >>
Author(s): Waraich, Rashid A., Ranganathan, S., Axhausen, Kay W.
Title: The Parking Game
Publication date / Date received: 2014-01-01
Publication status: Published
Event name: 14th Swiss Transport Research Conference (STRC 2014)
Event date: May 14-16, 2014
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1400664153
, Ehreke, Ilka, Axhausen, K.W., 2014 >>
Author(s): Ehreke, Ilka, Axhausen, K.W.
Title: The German value of time and value of reliability study
Abstract: 2
Publication date / Date received: 2014-01-01
Publication status: Leeds, UK
Publication status: Published
Event name: 3rd Symposium of the European Association for Research in Transportation (hEART 2014)
Event date: September 10-12, 2014
Place: Leeds, UK
Language: English
DBID source: FORM-1412266057
, Casati, Daniele, Müller, Kirill, Fourie, Pieter J., Erath, Alexander, Axhausen, Kay W., 2014 >>
Author(s): Casati, Daniele, Müller, Kirill, Fourie, Pieter J., Erath, Alexander, Axhausen, Kay W.
Title: Synthetic population generation by combining a hierarchical, simulation-based approach with reweighting by generalized raking
Abstract: We extend a recent approach of generating populations of synthetic individuals through simula- tion, to produce households of grouped individuals. The contingency tables of the generated populations match external controls both on individual and household level, while exhibiting far greater variety in composition than what existing approaches can offer. Our method involves a two-staged approach: 1. A procedure based upon Gibbs sampling which has only recently been applied to popula- tion generation in transportation modeling, and is generically called Markov Chain Monte Carlo. For this work, an extension was developed, Hierarchical MCMC, which is able to generate a hierarchical structure. 2. A post-processing step using Generalized Raking, which reweights the output from Hier- archical MCMC in order to perfectly satisfy known marginal control totals on individual and household level. The application input data — a demographic sample and some known marginals from the country of Singapore — added further complexities to the problem, which have not yet been explored in the current literature. Despite data challenges, applying the methods above consecutively produces realistic synthetic populations: results confirm the goodness-of-fit of the population and its generated hierarchical structure.2
Published in: Arbeitsberichte Raum- und Verkehrsplanung
Volume: 1016
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Event name: 94th Annual Meeting of the Transportation Research Board (TRB 2015)
Event date: January 11-15, 2015
Place: Washington, D.C., USA
Language: English
DBID source: FORM-1406997244
, Kowald, Matthias, Axhausen, Kay W., 2014 >>
Author(s): Kowald, Matthias, Axhausen, Kay W.
Title: Surveying data on connected personal networks
Abstract: This survey study combined name generators with snowball sampling to collect information on personal leisure networks and underlying ''global'' network structure. Although such an arrangement is not unusual, this large-scale study – with around 700 respondents – reported nearly 15,500 social contacts. Furthermore, snowball chains were limited to leisure contacts with no further limitation on collecting data or continuing recruitment.
While our methodological frame allowed analysis of both personal and global network structure within one data collection, it also included several sources of bias. To decrease bias, the study employed several especially designed mechanisms.
The paper examines both survey methodology and instrument in detail. It presents a methodology to survey personal network structures as well as characteristics of a population-wide leisure network structure. We discuss tools to decrease bias and statistics on their possible impacts, with rather surprising results. The paper closes with a discussion of data security issues and ethical considerations: important factors in projects using such methodologies. The Swiss Federal Data Protection and Information Commissioner evaluated this study, making this section particular interesting for those planning similar projects.
Published in: Travel behaviour and society
Volume: 1
Issue: 2
Pages: 57 - 68
ISSN: 2214-367X
Publication date / Date received: 2014-01-01
Publication status: Amsterdam
Publication status: Published
Subjects: Social network analysis, Snowball sampling, Name generator, Sampling bias, Cooperation rate, Data protection
Event name: 9th International Conference on Transport Survey Methods (ISCTSC)
Event date: November 14-18, 2011
Place: Termas de Puyehue, Chile
Language: English
Keyword: Social network analysis, Snowball sampling, Name generator, Sampling bias, Cooperation rate, Data protection
DBID source: FORM-1328028154
DOI: 10.1016/j.tbs.2013.11.001
, Dubernet, Thibaut, Axhausen, Kay W., 2014 >>
Author(s): Dubernet, Thibaut, Axhausen, Kay W.
Title: Solution Concepts for the Simulation of Household-Level Joint Decision Making in Multi-Agent Travel Simulation Tools
Abstract: In the recent years, there have been a growing interest in understanding and forecasting joint travel-related decisions, that is, decisions taken by several individuals together, including binding agreements. Such forecasting would first allow to predict the impact of policies aiming at influencing this kind of behavior (for instance policies aimed at increasing car occupancy), but also improve the forecasts in general, by taking into account the effect of spatial dispersion of social contacts when choosing a joint leisure location, for instance. A large number of attempts at simulating the state of transport systems have had a game theoretic view: individuals are seen as agents getting a utility from their travel decisions, this utility depending on the decisions of others (mainly via congestion). Game theory is aimed at defining and studying solution concepts for such situations, that is, ways to predict probable outcomes of such games. Most of the research in travel behavior forecasting relied on the equilibrium family of solution concepts. In this setting, individuals are seen as selfish agents competing for limited joint (capacity) resources. Another field where game-theoretic concepts have had important impact is in the field of co- evolutionary computation. An important stream of literature in this field in particular insists on the importance of the game-theoretic solution concept explicitly or implicitly underlying the search process, which will favor one solution or the other. Equilibrium is not the only solution concept from game theory, and its applicability in the case of decisions taken amongst emotionally related individuals, such as household members, is dubious. In particular, the possibility of realizing binding agreements is excluded from such formulation. This paper uses a co-evolutionary algorithm, built using the MATSim software framework, to investigate the usage of two different solution concepts for the problem of predicting intra- household joint travel: (a) a "Group Utility" concept, classical in the research on household decision-making, and (b) an "Absence of Blocking Coalition" concept, which allows to represent selfish but coordinating players with arbitrary social network topologies. The implementations of those solution concepts in MATSim are used on a scenario for the Zurich area, to reveal their strengths and weaknesses.2
Publication date / Date received: 2014-05-01
Publication status: Ascona
Publication status: Published
Event name: 14th Swiss Transport Research Conference (STRC 2014)
Event date: May 14-16, 2014
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1400086923
, Axhausen, Kay W., 2014 >>
Author(s): Axhausen, Kay W.
Title: Social networks and travel
Subtitle: A bit more than first explorations
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Event name: Seminar series "Social mechanisms"
Event date: May 9, 2014
Place: Institute for Future Studies, Stockholm University
Language: English
DBID source: FORM-1399691017
, Axhausen, Kay W., 2014 >>
Author(s): Axhausen, Kay W.
Title: Social networks and the dynamics of travel
Publication date / Date received: 2014-01-01
Publication status: Unpublished
Event name: 3rd Symposium of the European Association for Research in Transportation (hEART 2014)
Event date: September 10-12, 2014
Place: Leeds, UK
Language: English
DBID source: FORM-1410955245
, Kowald, Matthias, Axhausen, Kay W., 2014 >>
Author(s): Kowald, Matthias, Axhausen, Kay W.
Title: Snowball Data
Abstract: Explanations of leisure travel must account for people's social contacts. To analyze this influence, transport planning employs the methods of social network analysis. While earlier projects focused on isolated personal network components, this survey study collected data on connected personal networks by taking a snowball sample. The dataset includes information on the respondents' characteristics (e.g. their socio- demographics and their mobility biography) on their social contacts' characteristics (e.g. their socio-demographics) on the relationship between respondents and the social contacts (e.g. in which context and when they met first and how they stay in contact), and on the relationship the social contacts have amongst each other. Directly surveyed information are accompanied by variables which were calculated indirectly. Most of these information are related to people's social networks (e.g. how dense these networks are or how central the actors are). In addition to information on personal networks the dataset includes information on the population-wide Swiss leisure network.
Published in: Travel Survey Metadata Series
Volume: 45
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1401268807
, Vitins, Basil J., Axhausen, Kay W., 2014 >>
Author(s): Vitins, Basil J., Axhausen, Kay W.
Title: Shape Grammars in Transport and Urban Design – Review, Terminology, Assessment, and Application
Abstract: Shape grammars for urban design have attracted much interest in research and practice. Transport and urban planners increasingly deploy shape grammars especially in models and simulations. However, little is known about the effectiveness of shape grammar in transport networks and urban environments. The authors posit that grammars require specified and corresponding objectives and application specifications for enhanced implementation. The proposed methodology aims at a future development of a robust and effective language for e.g. sustainable urban development. The proposed methodology for grammar assessment bases on elasticities. Elasticities allow comprehensive comparisons and verification between grammar rules. First, the paper reviews and highlights the key achievements and applications of shape grammars in cognate fields of science. Terminology sheds light on the definitions of most relevant terms. The consecutive section differentiates methodological approaches in grammar design assessment, and emphasizes a standardized approach for shape grammars developments. The paper concludes with a detailed example for grammar rule assessment, and potential future research.
Publication date / Date received: 2014-01-01
Event name: World Symposium on Transport and Land Use Research (WSTLUR)
Event date: 24-17 June 2014
Place: Delft, The Netherlands
Language: English
DBID source: FORM-1403094643
, Vitins, Basil J., Axhausen, Kay W., 2014 >>
Author(s): Vitins, Basil J., Axhausen, Kay W.
Title: Shape Grammars Overview and Assessment for Transport and Urban Design - Review, Terminology, Assessment, and Application
Abstract: 2
Published in: Journal of transport and land use
ISSN: 1938-7849
Publication date / Date received: 2014-01-01
Publication status: Minneapolis
Publication status: Published
Language: English
DBID source: FORM-1415030324
Nebis system number: 010198325
, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2014 >>
Author(s): Rieser-Schüssler, Nadine, Axhausen, Kay W.
Title: Self-tracing and reporting
Subtitle: State-of-the-art in the capture of revealed behaviour
Abstract: Choice modelling is an increasingly important technique for forecasting and valuation, with applications in fields such as transportation, health and environmental economics. For this reason it has attracted attention from leading academics and practitioners and methods have advanced substantially in recent years. This Handbook, composed of contributions from senior figures in the field, summarises the essential analytical techniques and discusses the key current research issues. It will be of interest to academics, students and practitioners in a wide range of areas.2
Book title: Handbook of choice modelling
Pages: 131 - 151
ISBN: 978-1-78100-314-5, 978-1-78100-315-2
Publication date / Date received: 2014-01-01
Publication status: Cheltenham
Publication status: Published
Language: English
DBID source: FORM-1392395170
DOI: 10.4337/9781781003152.00012
Nebis system number: 009976543
, Lu, Ming, Axhausen, Kay W., 2014 >>
Author(s): Lu, Ming, Axhausen, Kay W.
Title: Searching for Arriving on Time Tolerance
Subtitle: New Swiss Data for Travel Time Reliability Analysis
Abstract: Travel time, as one of the key factors that influence travel decisions, plays an important role in transport planning. More and more researchers find out that not only travel time itself, but also travel time reliability can affect the travel decisions, and sometimes the latter is valued more. In this paper the authors explore how travel time reliability influences travelers' choices. Even though every trip is supposed to have an ideal preferred arrival time (PAT), it is also well accepted that travelers' regarded a certain buffer time around the PAT as arriving on time. Based on this, the paper focuses on travelers' on-time tolerance while using a schedule model to explain value of travel time savings (VTTS) as well as value of travel time reliability (VOR). In order to do this, a specially designed stated preference survey, in which the travel time follows a lognormal distribution, was distributed to collect data in Switzerland. Because the specified travel time distribution, a theoretical analysis for the expected on-time as well as expected earliness and lateness are conducted, followed by a heuristic search for the on-time tolerance of the respondents. The results shows that VTTS is more or less identical as similar Swiss studies while the VORs show relatively higher values compared to the other surveys.
Publication date / Date received: 2014-01-01
Publication status: Washington, D.C.
Publication status: Published
Event name: 93rd Annual Meeting of the Transportation Research Board (TRB 2014)
Event date: January 12-16, 2014
Place: Washington, D.C.
Language: English
DBID source: FORM-1396446475
, Schmid, Basil, Balac, Milos, Axhausen, Kay W., 2014 >>
Author(s): Schmid, Basil, Balac, Milos, Axhausen, Kay W.
Title: Scheduling in a Post-Car World
Subtitle: Experiments and Methods
Abstract: 2
Publication date / Date received: 2014-01-01
Publication status: Published
Event name: 14th Swiss Transport Research Conference (STRC 2014)
Event date: May 14-16, 2014
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1411405791
, Susilo, Yusak O., Axhausen, Kay W., 2014 >>
Author(s): Susilo, Yusak O., Axhausen, Kay W.
Title: Repetitions in individual daily activity–travel–location Patterns
Subtitle: A study using the Herfindahl–Hirschman Index
Abstract: Using Herfindahl–Hirschman Index and the Mobidrive and Thurgau six-week travel diary datasets this paper examines the degree of repetition of individuals' choices of their daily activity–travel–location combinations. The results show that the repetitiveness of individual activity–travel–mode–location combinations is highly influenced by the individuals' out-of-home commitments, the intra-household conditions and the availability and the accessibility of the activity locations. Different types of activity have different pattern of repetition. The level of repetition of individual's daily activity–travel pattern is less correlated to travel mode choice, but more to the individuals' commitments and obligations. The repetitiveness of mode choices is more related to the conditions or the accessibilities of the activity location, but not directly to the activity itself.2
Published in: Transportation
Volume: 41
Issue: 5
Pages: 995 - 1011
ISSN: 0049-4488, 1572-9435
Publication date / Date received: 2014-09-01
Publication status: Heidelberg
Publication status: Published
Subjects: Verkehr und Transport|Traffic and Transportation, Individual spatial–travel behaviour variability, Activity–travel–mode–location combination, Herfindahl–Hirschman Index, Six-week travel diary data
Language: English
Keyword: Individual spatial–travel behaviour variability, Activity–travel–mode–location combination, Herfindahl–Hirschman Index, Six-week travel diary data
DBID source: FORM-1398510184, WOS-000341751100004, SCOPUS-84920257180
DOI: 10.1007/s11116-014-9519-4
Nebis system number: 000056550
, Schirmer, Patrick M., Axhausen, Kay W., 2014 >>
Author(s): Schirmer, Patrick M., Axhausen, Kay W.
Title: Quantifying the value of urban form
Subtitle: A hedonic rent price model on Zurich
Publication date / Date received: 2014-01-01
Publication status: Published
Event name: 14th Swiss Transport Research Conference (STRC 2014)
Event date: May 14-16, 2014
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1406565096
, Rieser, Nadine, Axhausen, Kay W., 2014 >>
Author(s): Rieser, Nadine, Axhausen, Kay W.
Title: Psychometric Scales Survey
Abstract: This data originates from a paper-and-pen mail-out survey that consisted of three components: a questionnaire asking for person and household characteristics, three psychometric scales covering the topics risk propensity, variety seeking and environmentalism and a one-day travel diary. The goal of the survey was to estimate latent variable mode choice models in which the pychometric scales serve as indicators for the participants attitudes. The survey also served as a pretest for a larger survey in which the psychometric scales are combined with GPS-based one- week travel diaries. During the survey, 2000 questionnaires were sent out to respondents living in Canton Zurich in 2 waves during summer and fall 2010. For the diary, the respondents were assigned a survey day that was a Tuesday, Wednesday or Thursday to capture only ordinary weekdays. 2.7% of the letters were returned due to invalid addresses, of the 1946 potential respondents with valid addresses 274 returned at least one questionnaire resulting in a response rate of 14.1%. However, not all respondents return all parts of the survey and not all of the returned questionnaires were usable for later analysis. After cleaning the questionnaires of 222 persons remained that are giving in this data set.
Published in: Travel Survey Metadata Series
Volume: 57
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Subjects: Psychometric scales
Language: English
Keyword: Psychometric scales
DBID source: FORM-1408887130
, Bodenmann, Balz R., Sanchez, Breogan, Bode, Jeffrey W., Zeiler, Alexandra, Kuljovský, Milan, Furták, Peter, Sarlas, Georgios, Axhausen, Kay W., 2014 >>
Author(s): Bodenmann, Balz R., Sanchez, Breogan, Bode, Jeffrey W., Zeiler, Alexandra, Kuljovský, Milan, Furták, Peter, Sarlas, Georgios, Axhausen, Kay W.
Title: Planning for the Future: A Land-use and Transport Interaction Model for Switzerland
Abstract: Spatial and transport planners, authorities, real estate developers, investors, re-locating residents and businesses have different questions related to space and transport. These questions may concern specific land parcels, or cover a much larger area such as a city, a region, or even a whole nation. Amongst others, these questions include: - How will our society respond to influences of global economy and political decisions (e.g. regarding demographics and firmographics)? - Which strategies will help authorities and politicians to reach their goals? - What are the spatial effects (and side-effects) of these decisions and demographic changes (e.g. spatial/social segregation, use of resources and infrastructure, climate impact)? To answer these questions, different scenarios have been simulated including all 3000 municipalities in Switzerland using the integrated transport and land use simulation tool FaLC (Facility Location Choice Simulation Tool). FaLC incorporates interactions between land use, transportation, economy and public policy and has been developed in a joint project between the Institute for Transport Planning and Systems (IVT) at ETH Zurich, regioConcept (Switzerland) and ESMO (Slovakia). The models in FaLC focus on the effects of changing infrastructure supply, political decisions, and economic conditions on the spatial behaviour (location and relocation choices, transport flows) of persons (places of residence, work, leisure and shopping), firms (domicile, branches) and goods (freights, wholesale, retail, cash flow). In FaLC, persons move (or stay) in a certain space divided into a number of subareas (locations), comparable to a chess board. The agents' movement includes the daily commuters between home, work and leisure, as well as long-term decisions such as; where they live, work and generally spend their spare time. The first prototype of FaLC is already in operation and ready to create future scenarios. The implemented case study for Switzerland focusses basically on three scenarios: - Effects of road network modification - Effects of company taxes reduction - Effects of land regulation modification This paper shows the effects and side-effects of these assumed spatial interventions. Additionally, it discusses some problems of the chosen micro-simulation approach (e.g. data availability, white noise, choice of subsets).2
Publication date / Date received: 2014-01-01
Publication status: Published
Event name: 54th ERSA Congress
Event date: 26-29 August 2014
Place: St. Petersburg, Russia
Language: English
DBID source: FORM-1417259811
, Montini, Lara, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2014 >>
Author(s): Montini, Lara, Rieser-Schüssler, Nadine, Axhausen, Kay W.
Title: Personalisation in multi-day GPS and accelerometer data processing
Abstract: In this paper, we analyse how personalisation during processing of multi-day GPS and ac- celerometer data can improve the quality of the produced travel diaries. The main focus is on trip purpose detection using random forests. Two main approaches are followed. First, the effect of person-based input features is shown, in particular distance to home and work improve classification result (median accuracy + 3.8 %). Second, it is analysed how usage of annotated data improves prediction. Most strategies like selecting the best classifier out of many, have no effect. But, improvements are possible if the classifier is learned including some of the participant's annotated data (median accuracy + 5.5 %).
Publication date / Date received: 2014-01-01
Publication status: Ascona
Publication status: Published
Subjects: GPS processing, Trip purpose, Personalisation
Event name: 14th Swiss Transport Research Conference (STRC 2014)
Event date: May 14-16, 2014
Place: Ascona, Switzerland
Language: English
Keyword: GPS processing, Trip purpose, Personalisation
DBID source: FORM-1400091352
, Fuhrer, Raphael, Axhausen, Kay W., 2014 >>
Author(s): Fuhrer, Raphael, Axhausen, Kay W.
Title: New Historical Data
Subtitle: The Reconstruction of 1950's Global Road Network Using American Army Maps
Abstract: In this paper, a new data set of a historical road network is presented. It represents the situation of 1950 and covers the whole globe. Its generation is documented in detail, its features are reported and, using it as a geographical information system in order to generate historical travel times in the example of Nigeria, its usefulness in (historical) transport studies is demonstrated. The main sources of this data set are maps of the former US Army Map Service and a range of historical statistics. To the knowledge of the authors, such historical transport data has not been available so far, which enables to examine various historical and current transport related research questions using spatial and time-variant data.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 1025
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1409840512
, Harding, Chris, Patterson, Zachary, Axhausen, Kay W., 2014 >>
Author(s): Harding, Chris, Patterson, Zachary, Axhausen, Kay W.
Title: Neighborhood and Regional Effects on Trip Dispersal
Subtitle: A Case Study using Data from the 9 Largest Metropolitan Regions in Switzerland
Abstract: The effect of urban form variables on dispersal is explored using activity spaces generated from origin-destination data on 60,000 Swiss residents living in metropolitan areas of varying size, density and population. The diversity of locations enables us to distinguish the roles played by local and regional variations in land use. Parameters are estimated using ordinary least squares (OLS) and simultaneous equation model (SEM) regression analysis. Results indicate that neighborhood type has a large and significant effect on the dispersal of travel by residents, whereas regional effects, found elsewhere to be very large, are quite small. Distance from the core also has a significant impact on dispersal, but only in the first 8 km surrounding the city center. Of the other regional land use variables tested, very few were found to be significant predictors of dispersal, only proportion population within the inner metro area, employment center access and metropolitan area shape. Of note, neither metropolitan area nor population, which were hypothesized to have a significant impact on dispersal, were found to be significant predictors. Finally, the hypothesis of endogeneity in explanatory variables was investigated and rejected. These results indicate that policies aimed at developing dense and mixed urban settlements would carry with them the beneficial effect of reducing travel dispersal, even if not built adjacent to the central business district.
Published in: Working paper
Volume: 80
Pages: 1 - 21
ISSN: 1662-7504
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Subjects: Activity space, Neighborhood type, Metropolitan determinants, Simultaneous equation model, Urban form
Event name: 93rd Annual Meeting of the Transportation Research Board Conference
Event date: January 12-16, 2014
Place: Washington, DC, USA
Language: English
Keyword: Activity space, Neighborhood type, Metropolitan determinants, Simultaneous equation model, Urban form
DBID source: FORM-1389357374
Nebis system number: 008683820
, Vrtic, Milenko, Fröhlich, Philipp, Weis, Claude, Bodenmann, Balz R., Zeiler, Alexandra, Axhausen, Kay W., 2014 >>
Author(s): Vrtic, Milenko, Fröhlich, Philipp, Weis, Claude, Bodenmann, Balz R., Zeiler, Alexandra, Axhausen, Kay W.
Title: Nationales Personenverkehrsmodell des UVEK
Subtitle: Aktualisierung auf den Basiszustand 2010
Abstract: Das Nationale Personenverkehrsmodell des UVEK wurde auf den Basiszustand 2010 aktualisiert. Angepasst und weiterentwickelt wurden: Netzmodelle (Angebot motorisierter Individualverkehr (MIV) und Öffentlicher Verkehr (ÖV)), Strukturdatenbank, Nachfragemodell (ohne Neuschätzung der Modellparameter), Umlegungsmodelle und die Kalibration der Modellbelastungen auf Querschnittszählungen. Mit dem aktualisierten NPVM steht ein geeignetes und taugliches Instrument für die Untersuchung der Zusammenhänge zwischen Siedlung und Verkehr, die Beurteilung von Angebotskonzepten zur Bewertung von Massnahmen und zur Abstimmung der Verkehrsträger, die Analyse von verkehrspolitischen Massnahmen sowie die Erarbeitung der schweizerischen Verkehrsperspektiven 2040 zur Verfügung.

Le modèle national de transport de personnes du DETEC a été mis à jour selon la situation de base 2010. Les éléments suivants ont été adaptés et développés : réseau routier et réseau ferroviaire (offre pour le transport individuel motorisé, TIM, et transport public, TP), base de données structurelles, modèle de la demande (sans nouvelle estimation des paramètres), modèles de choix de route, charges de réseau (étalonnage sur les données de comptage de 2010). Le MNTP mis à jour fournit un instrument approprié et fonctionnel pour étudier les corrélations entre l'habitat et les transports, évaluer les conceptions d'offres visant à constater l'effet des mesures et à coordonner les modes de transport, analyser les mesures de politique des transports et élaborer les perspectives 2040 des transports en Suisse.

Il modello nazionale del traffico viaggiatori del DATEC è stato rielaborato sulla base dell'anno di riferimento 2010. L'adeguamento e l'ulteriore sviluppo riguardano i seguenti aspetti: modelli di rete (offerta nel traffico motorizzato privato TMP e nei trasporti pubblici TP), banca dati strutturale, modello della domanda (senza una nuova stima dei relativi parametri), modelli di scelta del percorso e calibrazione dei carichi sulla base di conteggi trasversali. Grazie al modello nazionale del traffico viaggiatori aggiornato, vi è ora uno strumento appropriato ed efficace per lo studio delle relazioni tra insediamento e trasporti, per l'esame delle strategie d'offerta concernenti la valutazione di misure e il coordinamento dei vettori di trasporto, per l'analisi delle misure in materia di politica dei trasporti e per l'elaborazione delle prospettive di traffico svizzere 2040.2
Publication date / Date received: 2014-08-01
Publication status: Published
Language: German
DBID source: FORM-1404763717
, Sun, Lijun, Tirachini, Alejandro, Axhausen, Kay W., Erath, Alexander, Lee, Der-Horng, 2014 >>
Author(s): Sun, Lijun, Tirachini, Alejandro, Axhausen, Kay W., Erath, Alexander, Lee, Der-Horng
Title: Models of bus boarding and alighting dynamics
Abstract: Understanding the dynamics of boarding/alighting activities and its impact on bus dwell times is crucial to improving bus service levels. However, research is limited as conventional data collection methods are both time and labour intensive. In this paper, we present the first use of smart card data to study passenger boarding/alighting behaviour and its impact on bus dwell time. Given the nature of these data, we focus on passenger activity time and do not account for the time necessary to open and close doors. We study single decker, double decker and articulated buses and identify the specific effects of floor/entrance type, number of activities and occupancy on both boarding and alighting dynamics. A linear relationship between average boarding and alighting times and their respective standard deviations is also found, whereas the variability of boarding and alighting time decreases with the number of passengers boarding and alighting. After observing the cumulative boarding/alighting processes under different occupancy conditions, we propose a new model to estimate passenger activity time, by introducing critical occupancy – a parameter incorporating the friction between boarding/alighting and on-board passengers. We conduct regression analyses with the proposed and another popular model for simultaneous boarding/alighting processes, finding that the critical occupancy plays a significant role in determining the regime of boarding and alighting processes and the overall activity time. Our results provide potential implications for practice and policy, such as identifying optimal vehicle for a particular route and modelling transit service reliability2
Published in: Transportation research. Part A, Policy and practice
Volume: 69
Pages: 447 - 460
ISSN: 0965-8564, 1879-2375
Publication date / Date received: 2014-11-01
Publication status: Amsterdam
Publication status: Published
Subjects: Verkehr und Transport|Traffic and Transportation, Boarding/alighting dynamics, Bus dwell time, Crowding, Smart card data, Bus configuration, Public transit
Language: English
Keyword: Boarding/alighting dynamics, Bus dwell time, Crowding, Smart card data, Bus configuration, Public transit
DBID source: FORM-1374507573, SCOPUS-84908365299
DOI: 10.1016/j.tra.2014.09.007
Nebis system number: 000006552
, Ehreke, Ilka, Axhausen, Kay W., 2014 >>
Author(s): Ehreke, Ilka, Axhausen, Kay W.
Title: Modelling work place decisions in mobility biographies
Abstract: 2
Publication date / Date received: 2014-01-01
Publication status: Unpublished
Event name: 14th Swiss Transport Research Conference (STRC 2014)
Event date: May 14-16, 2014
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1413021580
, Stahel, Alexander, Ciari, Francesco, Axhausen, Kay W., 2014 >>
Author(s): Stahel, Alexander, Ciari, Francesco, Axhausen, Kay W.
Title: Modeling impacts of weather conditions in agent-based transport microsimulations
Abstract: Despite all mitigation efforts, climate change will impact transport systems. As the exact effects are still uncertain, a range of possible climate change outcomes has to be considered. For that purpose, it is important to have an instrument modeling a transport system and its behavior in different weather conditions. This paper shows that agent-based micro-simulations represent a promising approach for comprehensively modeling the impacts on transport systems. Moreover, based on evidence from previous literature, a new comprehensive classification of the various transport system aspects affected by climate change is proposed: Transport infrastructure, safety, travel behavior and socio-economic circumstances. Existing weather-sensitive models are restricted to impacts on transport infrastructure and driving behavior or include very simplistic activity-travel behavior models. Different approaches are sketched for the simulation of regular and unexpected weather conditions within the Multi-Agent Transport Simulation (MATSim). For regular weather conditions, it is proposed to search for tipping points where the performance of the transport system starts to significantly deteriorate due to the weather condition. For certain impacts categories, in particular for activity-travel behavior, the degree of impact and sometimes direction varies within the literature, calling for further analysis. Modeling unexpected weather conditions requires the application of the within-day replanning module within MATSim. The key challenge here is the definition of the appropriate replanning strategies when an unexpected event occurs.2
Publication date / Date received: 2014-01-01
Publication status: Washington, D.C.
Publication status: Published
Event name: 93rd Annual Meeting of the Transportation Research Board
Event date: January 12-16, 2014
Place: Washington, D.C., USA
Language: English
DBID source: FORM-1376919951
, Axhausen, Kay W., 2014 >>
Author(s): Axhausen, Kay W.
Title: Mobility and Transportation Planning
Abstract: 2
Publication date / Date received: 2014-01-01
Publication status: Unpublished
Event name: Future Cities Symposium (FCL 2014)
Event date: September 24-26, 2014
Place: Zürich, Switzerland
Language: English
DBID source: FORM-1411882097
, Axhausen, Kay W., 2014 >>
Author(s): Axhausen, Kay W.
Title: MATSim platform and applications in Europe and elsewhere
Publication date / Date received: 2014-01-01
Publication status: Accepted
Event name: Demonstration of an Integrated Dynamic Policy Sensitive Model of Travel Demand for the Mega-Region of New York
Event date: May 2014
Place: New York City, NY, USA
Language: English
DBID source: FORM-1401265740
, Janzen, Maxim, Charypar, David, Axhausen, Kay W., 2014 >>
Author(s): Janzen, Maxim, Charypar, David, Axhausen, Kay W.
Title: Long Term Simulation of a Continuous Target-Based Model
Abstract: To date, travel demand generation for microscopic traffic flow simulation focuses mostly on reproducing daily life behavior. This stands in contrast to the significant part of traffic volume caused by journeys related to activities not usually undertaken in daily life. The paper investigates the possibilities of extending an existing approach (continuous target-based planning) to cover some of these exceptional activities. This paper discusses the possibilities to extend the continuous target-based approach in order to generate long term travel demand including journeys which are not part of daily life (e.g. going on holidays). The proposed extensions include new low-frequenced targets with higher travel times than daily life targets. Consequences and the necessary adaptions of the heuristics used arising from these special targets are presented here.2
Publication date / Date received: 2014-05-01
Publication status: Ascona
Publication status: Published
Subjects: Continuous target based model, Long term simulation, Long distance travel demand, Microscopic travel demand simulation, C-TAP
Event name: 14th Swiss Transport Research Conference (STRC 2014)
Event date: May 14-16, 2014
Place: Monte Verità, Ascona, Switzerland
Language: English
Keyword: Continuous target based model, Long term simulation, Long distance travel demand, Microscopic travel demand simulation, C-TAP
DBID source: FORM-1400087848
, Märki, Fabian, Charypar, David, Axhausen, Kay W., 2014 >>
Author(s): Märki, Fabian, Charypar, David, Axhausen, Kay W.
Title: Location choice for a continuous simulation of long periods under changing conditions
Abstract: The authors propose a location choice procedure that is capable of handling changing conditions of aspects with different time horizons. It integrates expected travel time, current location effectiveness, prospective location effectiveness, and individual unexplained location perception into a decision heuristic that considers different planning horizons simultaneously and decides on-the-fly about future location visits. Multiple simulation runs illustrate agents' location choice behavior in various situations and confirm that the model enables agents to simultaneously consider seasonal effects, weather conditions, expected travel times, and individual unexplained location preference in their location choice.
Published in: Journal of transport and land use
Volume: 7
Issue: 2
Pages: 1 - 17
ISSN: 1938-7849
Publication date / Date received: 2014-01-01
Publication status: Minneapolis, MN
Publication status: Published
Subjects: Location choice, Multi-week schedules, Continuous activity generation and scheduling, Microscopic travel demand simulation, Continuous target-based activity planning (C-TAP)
Language: English
Keyword: Location choice, Multi-week schedules, Continuous activity generation and scheduling, Microscopic travel demand simulation, Continuous target-based activity planning (C-TAP)
DBID source: FORM-1393411552
DOI: 10.5198/jtlu.v7i2.547
, Dobler, Christoph, Bekhor, Shlomo, Axhausen, Kay W., 2014 >>
Author(s): Dobler, Christoph, Bekhor, Shlomo, Axhausen, Kay W.
Title: Integration of Activity-Based with Agent-Based Models
Subtitle: an Example from Tel-Aviv Model and MATSim
Abstract: This paper explores the possibility of integrating an operational activity based model with a dynamic traffic assignment framework. For this purpose, the Tel Aviv activity-based model and parts of the functionality of the MATSim agent-based framework are used, in an attempt to use the best features of both approaches: on one side, the disaggregate demand representation from the activity-based model, and on the other side, the disaggregate supply representation of the agent-based framework. The paper uses the person activity schedule produced by the activity based model directly, thus eliminating the need to aggregate them into origin-destination matrices. The paper compares results produced by this combination against a static assignment of the Tel Aviv model that shows a very good fit at the aggregate level. The purpose of the paper is to further advance the fully disaggregate implementation of activity-based models. In this aspect, this paper represents a further step towards this general goal.2
Publication date / Date received: 2014-01-01
Publication status: Accepted
Event name: Seminar of Ayalon Highways Ltd.
Event date: April 2014
Place: Ramat Gan, Israel
Language: English
DBID source: FORM-1401940005
, Dobler, Christoph, Horni, Andreas, Axhausen, Kay W., 2014 >>
Author(s): Dobler, Christoph, Horni, Andreas, Axhausen, Kay W.
Title: Integration of Activity-Based and Agent-Based Models
Subtitle: Recent developments for Tell Aviv, Israel
Abstract: This paper describes how the initial MATSim model of Tel Aviv has been updated and extended since its first version presented by Bekhor et al. (see 1). Main innovations are the inclusion of road pricing in the scenario and the incorporation of destination choice as an endogenous choice in the model. By conducting several experiments, it is shown that this implementation is able to fully replace the ad-hoc destination choice part of the first model. Furthermore, the model has been improved by several substantial updates in terms of data, such as population, network, zonal information, traffic counts, road pricing, trip length distribution. The outcomes of the calibrated model are compared to real world data as well as to the outcomes of the original model using EMME/2 for the traffic assignment. It is shown that the MATSim model reproduces the traffic flows very accurate and even better than EMME/2.2
Published in: Arbeitsberichte Raum- und Verkehrsplanung
Volume: 1027
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1411039336
, Waraich, Rashid A., Axhausen, Kay W., 2014 >>
Author(s): Waraich, Rashid A., Axhausen, Kay W.
Title: Infrastructure and Policy Design for Electric Vehicles
Abstract: The presented work tries to bridge this gap and presents a framework which allows temporal and spatial evaluation of policies, especially for short and long-term scenarios within transportation in general and for electric vehicles in particular. One of the main goals is to design policies, which lead to a desired outcome with high probability (e.g. CO2 reduction). For our modelling we envision to use an agent-based approach (described in next section), which can help to uncover possible policy flaws/hidden loop holes by inspecting complex emerging behavior of subsystem interactions.2
Publication date / Date received: 2014-01-01
Publication status: Published
Event name: SCCER-Mobility 1st Annual Conference
Event date: September 11, 2014
Place: Zürich, Switzerland
Language: English
DBID source: FORM-1413025791
, Bodenmann, Balz R., Vecchi, I., Sanchez, Breogan, Bode, Jeffrey W., Zeiler, Alexandra, Axhausen, Kay W., 2014 >>
Author(s): Bodenmann, Balz R., Vecchi, I., Sanchez, Breogan, Bode, Jeffrey W., Zeiler, Alexandra, Axhausen, Kay W.
Title: Implementation of a Synthetic Population for Switzerland - Swiss Case Study 2013
Abstract: The main goal of the first version of the Swiss Case Study is to test convenience and achieve- ment of the stated objectives of the whole FaLC project. This report focusses on the Synthetic Population that has been implemented during the year 2013. This Implementation will also serve as a template for further Case Studies. Therefore, the report takes part of the FaLC documentation (comparable to an implementation guide). This paper is integral part of the FaLC documentation. The reader is encouraged to report any technical or editing issues/problems with this specification to info@falc-sim.org2
Published in: FaLC Working Paper
Volume: 01
Publication date / Date received: 2014-01-01
Publication status: Published
Language: English
DBID source: FORM-1443025073
, Bodenmann, Balz R., Vecchi, I., Sanchez, Breogan, Bode, Jeffrey W., Zeiler, Alexandra, Axhausen, Kay W., 2014 >>
Author(s): Bodenmann, Balz R., Vecchi, I., Sanchez, Breogan, Bode, Jeffrey W., Zeiler, Alexandra, Axhausen, Kay W.
Title: Implementation of a Synthetic Population for Switzerland - Swiss Case Study 2013
Abstract: The main goal of the first version of the Swiss Case Study is to test convenience and achieve- ment of the stated objectives of the whole FaLC project. This report focusses on the Synthetic Population that has been implemented during the year 2013. This Implementation will also serve as a template for further Case Studies. Therefore, the report takes part of the FaLC documentation (comparable to an implementation guide). This paper is integral part of the FaLC documentation. The reader is encouraged to report any technical or editing issues/problems with this specification to info@falc-sim.org2
Published in: FaLC Working Paper
Volume: 01
Publication date / Date received: 2014-01-01
Publication status: Published
Language: English
DBID source: FORM-1443025073
, Zöllig Renner, Christof, Axhausen, Kay W., 2014 >>
Author(s): Zöllig Renner, Christof, Axhausen, Kay W.
Title: Heterogeneous real estate developers in an integrated land use transport simulation
Abstract: Managing urban areas is a concern which gains importance since more and more people live in cities. If we want to have better control of the urban system, we have to clarify the processes constituting to their evolution. Since real estate developers have a key role with respect to building stock evolution, we want to learn more about their behaviour. A better understanding of these actors' reaction to policies and market conditions should improve changes of political visions to be realised. Thus, the aim of this paper is to show how developer type specific behaviour influences the development of urban areas. We investigate this issue by deploying a microsimulation of land use transport interaction which features a developer type specific real estate development model. The purpose of these models within the simulation is to provide real estate options for households and firms to locate their activities. The main tool to develop the simulation is UrbanSim. The paper presents the results of a land use transport interaction simulation in the Canton of Zurich, Switzerland. The investigated scenarios assume different shares of real estate developer types to be active in the simulation area. The three discriminated types are self-owning developers with one project, self-owning developers with multiple projects and commercial developers which want to sell the project later on. For the reference scenario we take the shares observed in the period from 2000 till 2010. The planning scenario assumes a doubling of activity of commercial developers. The results will be analysed with respect to land consumption, densities of built space, population and job distribution as well as resulting travel indicators.2
Publication date / Date received: 2014-05-01
Publication status: Ascona
Publication status: Published
Subjects: Real estate development, Location choice, Taste heterogeneity, Land use transport interaction simulation, Zurich
Event name: 14th Swiss Transport Research Conference (STRC 2014)
Event date: May 14-16, 2014
Place: Ascona, Switzerland
Language: English
Keyword: Real estate development, Location choice, Taste heterogeneity, Land use transport interaction simulation, Zurich
DBID source: FORM-1400092200
, Horni, Andreas, Axhausen, Kay W., 2014 >>
Author(s): Horni, Andreas, Axhausen, Kay W.
Title: Gridlock Modeling with MATSim
Abstract: Traffic gridlocks represent an extreme case of network impedance. In regions with increasing impedance due to higher loads, gridlocks are expected to become more frequent and thus more relevant; consequently, they cannot be neglected in transport models anymore. This paper starts the examination of MATSim's capability to model gridlock events. Closing Milchbuck and Schöneichtunnel being an eastbound arterial route is simulated. Furthermore, a side-glance is taken at single intersection modeling being highly relevant for gridlock simulation.2
Publication date / Date received: 2014-05-01
Publication status: Ascona
Publication status: Published
Subjects: MATSim, Gridlock, Microsimulation, Link storage capacity
Event name: 14th Swiss Transport Research Conference (STRC 2014)
Event date: May 14-16, 2014
Place: Ascona, Switzerland
Language: English
Keyword: MATSim, Gridlock, Microsimulation, Link storage capacity
DBID source: FORM-1400087559
, Ehreke, Ilka, Jäggi, Boris, Axhausen, Kay W., 2014 >>
Author(s): Ehreke, Ilka, Jäggi, Boris, Axhausen, Kay W.
Title: Greening Household Behaviour and Transport
Abstract: This report focuses on personal transport choices. It presents the results of follow-up analysis of the 2011 OECD Survey on Environmental Policy and Individual Behaviour Change (EPIC) survey where econometric techniques are applied. The report complements the overview of the survey data provided in the publication OECD (2014). The objective of the analysis is to understand the determinants of household choices in the following areas: the use of alternative modes of transportation car ownership, willingness-to- pay for an electric vehicles and the relative importance of environmental factors when buying a car. The results indicate that the choice of non-motorized modes of transportation is strongly correlated with the proximity of the destination and that attitudinal variables play only a minor role. The same is true for the use of public transport. Households that say that they trust information about environmental impact of products, are better educated about impact of private transport and are in favour of government actions to reduce CO2, tend to have a higher willingness to pay for electric vehicles.2
Published in: OECD Environment Working Papers
Volume: 2014
Issue: 15
Pages: 77
Publication date / Date received: 2014-01-01
Publication status: Paris, France
Publication status: Published
Subjects: Sustainable transportation, Willingness-to-pay, Electric vehicles, Non-motorized modes, Choice model, Cycling, Walking, Environmental attitudes, Policy recommendation, Household survey
Language: English
Keyword: Sustainable transportation, Willingness-to-pay, Electric vehicles, Non-motorized modes, Choice model, Cycling, Walking, Environmental attitudes, Policy recommendation, Household survey
DBID source: FORM-1420736206
DOI: 10.1787/5jxrclmd0gjb-en
, Axhausen, Kay W., 2014 >>
Author(s): Axhausen, Kay W.
Title: Familiar strangers
Subtitle: A network of encounters
Publication date / Date received: 2014-01-01
Publication status: Published
Event name: Mobile Tartu 2014
Event date: July 1-4, 2014
Place: Tartu, Estonia
Language: English
DBID source: FORM-1404410402
, Rieser-Schüssler, Nadine, Rieser, Marcel, Montini, Lara, Axhausen, Kay W., 2014 >>
Author(s): Rieser-Schüssler, Nadine, Rieser, Marcel, Montini, Lara, Axhausen, Kay W.
Title: Exploring choice set generation approaches for public transport connection choice
Abstract: 2
Publication date / Date received: 2014-01-01
Publication status: Unpublished
Event name: 14th Swiss Transport Research Conference (STRC 2014)
Event date: May 14-16, 2014
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1415109090
, Rieser-Schüssler, Nadine, Rieser, Marcel, Montini, Lara, Axhausen, Kay W., 2014 >>
Author(s): Rieser-Schüssler, Nadine, Rieser, Marcel, Montini, Lara, Axhausen, Kay W.
Title: Exploring choice set generation approaches for public transport connection choice
Abstract: This technical working paper documents the choice set generation algorithms for public transport connection choice in their state of development in August 2014. The choice set generation methods have been developed to generate the non-chosen alternatives for public transport trips that have been observed through GPS traces recorded either by dedicated GPS devices or by smart-phones. The choice set generation approaches that we have developed build on the idea of generating a routing network that contains the entire schedule and modifying that Dijkstra algorithm so that takes into account multiple start and end stops in the public transport network and the corresponding access and egress segments. The basic version is then combined with other least cost path based choice set generation procedures: First, with a procedure to randomly vary the link cost and cost function parameters to obtain a doubly stochastic choice set generation and, second, with a new approach of selecting potential transfer opportunities in the network enforcing a routing via these selected points. A first evaluation of the generated choice sets was done with public transport trips found in GPS traces originating from a person-based GPS diary survey with participants living in and around Zurich. It shows that all three approaches generally work. However, it also reveals several areas for improvement that are discussed within in this working paper.
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 1023
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Subjects: Raumordnung, Städtebau, Landschaftsarchitektur|Spatial and Urban Planning, Landscape Architecture, Verkehr und Transport|Traffic and Transportation, Verkehrsplanung, Strassen- und Eisenbahnbau|Traffic, Highway and Railroad Engineering, GPS, Public transport, Choice set generation, Schedule, Network
Language: English
Keyword: GPS, Public transport, Choice set generation, Schedule, Network
DBID source: FORM-1409233322
Nebis system number: 004231702
, Ehreke, Ilka, Hess, Stephane, Axhausen, Kay W., 2014 >>
Author(s): Ehreke, Ilka, Hess, Stephane, Axhausen, Kay W.
Title: Experiences from the German value of time (VOT) and value of reliability (VOR) study
Abstract: Germany's Federal Ministry of Transport and Digital Infrastructure (BMVI) is currently preparing the 2015 Federal Transport Investment Plan (BVWP). As part of this, it is updating the overall methodology including the cost-benefit analysis (CBA), which is used to evaluate the effects of hundreds of German infrastructure projects. The paper presents the survey of the first official estimation of the values of time (VOT) and values of reliability (VOR) for personal and business travel for Germany. The VOTs will replace a set of existing values, which were based on values from BVWP'92. The VORs were estimated for the first time, as they are not incorporated in the standard appraisal yet. This paper gives inside on the survey design, reports experiences made in the field phase and analyses the response behaviour of the participants. It shows that a rich dataset has been collected which builds the basis for further modelling.2
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Event name: 10th International Conference on Transport Survey Methods (ISCTSC14)
Event date: November 16-24, 2014
Place: Leura, Australia
Language: English
DBID source: FORM-1406996472
, Erath, Alexander, Eggermond, Michael A.B. van, Axhausen, Kay W., 2014 >>
Author(s): Erath, Alexander, Eggermond, Michael A.B. van, Axhausen, Kay W.
Title: Evaluating novel and traditional survey methods for the construction of a behavioral founded walkability index
Abstract: Transportation planners have traditionally focused on different aspects of motorized transport. More recently, the importance of walking is being realized. Not only does every public transport trip start and end with a walking journey, walking as a main mode can reduce the number of motorized trips and reduce the accompanying negative externalities, such as road congestion, emissions and public transport overcrowding. Additionally, it has social and recreational value, and promotes physical and mental health (Southworth, 2005). For walking to be considered as a main mode, with the attractiveness of walking being dubbed walkability, several prerequisites are necessary. For instance, Speck (2012) puts forward that for a city to be walkable several prerequisites should be met. A walk should be useful (e.g. mixed use), safe, comfortable and interesting. In addition to this qualitative approach of describing walkability, approaches to quantify walkability have emerged. Walk Score, and other indices for walkability proposed so far are mostly ad-hoc, somewhat informative and refer generally to the closest amenities/public transport stops and the existing network structure. The weights of the attributes of the indices are generally arbitrary and do not reflect the independently measured preferences of the users and residents. Furthermore, they usually employ beeline distance measures instead of pedestrian network distances and do not include design attributes such as the layout of sidewalks, noise and speed level of traffic or street width, which are very relevant for actual planning decisions. As outlined, walkability consists of more than the mere presence of a sidewalk; it consists of both the quality and topology of the walking environment and how pedestrians' evaluate those characteristics. In this study we aim to formulate a behavioral founded walkability index, which incorporates pedestrian's preferences and design attributes. In order to calculate a walkability index, both the walking environment will be mapped and pedestrians preferences will be estimated with a discrete choice models. In the paper we will present our experiences and outcomes of measuring users' preferences of the walking environment in two districts in Singapore, in total measuring approximately 4 by 4 kilometers. The study will be carried out between January and July 2014 and will use three approaches: detailed mapping of the pedestrian network and description of destinations, analysis of reported/tracked walks indoors/outdoors (revealed preference) and of stated choice experiments. With the revealed preference approach, we aim to measure users' preferences by means of their route choice and destination choice. In the technology enabled approach 250 individuals, quota sampled based on age, gender and main mode used will be asked to install a smartphone application, making it possible to track individuals by means of GPS and WiFi spots. The survey area consists of high rises, indoor and underground pedestrian throughways. First tests however have shown this built environment can pose challenges for pedestrian position tracking by a combined GPS / WiFi approach, especially as we are not only interested the road being traversed, but also which side of the road and which crossings are used. Therefore, a second, traditional approach will be pursued additionally: random pedestrians will be followed by research assistants, and their origin, destination as well as traces and intermediate stops, will be noted, in addition to person characteristics, such as age category and gender. Based on the observed routes, choice sets will be generated and route choice models will be estimated. In the stated preference survey, the same 250 individuals will receive two different SP experiments, focusing on route choice (link properties, intersection characteristics) and destination choice by type of destination. This paper will focus on several aspects of the walkability study of relevance, namely: - The experiences with using combined GPS / WiFi in a dense urban environment; - Differences in data quality and resulting route choice models using GPS / WiFi trackers and 'traditional' following of individuals; - The comparison of behavioral parameters concerning walkability based on revealed preference respectively stated preference data.2
Publication date / Date received: 2014-01-01
Publication status: Accepted
Event name: 10th International Conference on Transport Survey Methods (ISCTSC14)
Event date: November 16-21, 2014
Place: Leura, Australia
Language: English
DBID source: FORM-1416836079
, Sarlas, Georgios, Axhausen, Kay W., Fuhrer, Raphael, 2014 >>
Author(s): Sarlas, Georgios, Axhausen, Kay W., Fuhrer, Raphael
Title: Estimating the agglomeration effects of public transport improvements
Subtitle: The case of Switzerland
Abstract: 2
Publication date / Date received: 2014-01-01
Publication status: Published
Event name: 3rd Symposium of the European Association for Research in Transportation (hEART 2014)
Event date: September 10-12, 2014
Place: Leeds, UK
Language: English
DBID source: FORM-1411042390
, Sarlas, Georgios, Fuhrer, Raphael, Axhausen, Kay W., 2014 >>
Author(s): Sarlas, Georgios, Fuhrer, Raphael, Axhausen, Kay W.
Title: Estimating the Agglomeration Effects of Public Transport Improvements: The Case of Switzerland
Abstract: 2
Publication date / Date received: 2014-01-01
Publication status: Leeds
Publication status: Unpublished
Event name: 3rd Symposium of the European Association for Research in Transportation (hEART 2014)
Event date: September 10-12, 2014
Place: Leeds, UK
Language: English
DBID source: FORM-1434979586
, Axhausen, K.W., Ehreke, I., Weis, C., et al., 2014 >>
Author(s): Axhausen, K.W., Ehreke, I., Weis, C., et al.
Title: Ermittlung von Bewertungsansätzen für Reisezeiten und Zuverlässigkeit auf der Basis eines Modells für modale Verlagerungen im nicht-gewerblichen und gewerblichen Personenverkehr für die Bundesverkehrswegeplanung
Subtitle: FE-Projekt-Nr. 96.996/2011
Publication date / Date received: 2014-01-01
Publication status: Berlin
Publication status: Published
Event name: Fachtagung BVWP-Bewertungsverfahren
Event date: 11 June 2014
Place: Berlin, Germany
Language: German
DBID source: FORM-1403638654
, Axhausen, Kay W., Ehreke, Ilka, Glemser, Axel, Hess, Stephan, Joedden, Christian, Nagel, Kai, Sauer, Andreas, Weis, Claude, 2014 >>
Author(s): Axhausen, Kay W., Ehreke, Ilka, Glemser, Axel, Hess, Stephan, Joedden, Christian, Nagel, Kai, Sauer, Andreas, Weis, Claude
Title: Ermittlung von Bewertungsansätzen für Reisezeiten und Zuverlässigkeit auf Basis der Schätzung eines Modells für modale Verlagerungen im nicht-gewerblichen und gewerblichen Personenverkehr für die Bundesverkehrswegeplanung
Subtitle: FE-Projekt 96.996/2011 Zeitkosten Personenverkehr
Abstract: 2
Publication date / Date received: 2014-03-01
Publication status: Zürich
Publication status: Published
Language: German
DBID source: FORM-1412746822
, Sun, Lijun, Axhausen, Kay W., Lee, Der-Horng, Cebrian, Manuel, 2014 >>
Author(s): Sun, Lijun, Axhausen, Kay W., Lee, Der-Horng, Cebrian, Manuel
Title: Efficient detection of contagious outbreaks in massive metropolitan encounter networks
Abstract: Physical contact remains difficult to trace in large metropolitan networks, though it is a key vehicle for the transmission of contagious outbreaks. Co-presence encounters during daily transit use provide us with a city-scale time-resolved physical contact network, consisting of 1 billion contacts among 3 million transit users. Here, we study the advantage that knowledge of such co-presence structures may provide for early detection of contagious outbreaks. We first examine the ''friend sensor'' scheme - a simple, but universal strategy requiring only local information - and demonstrate that it provides significant early detection of simulated outbreaks. Taking advantage of the full network structure, we then identify advanced ''global sensor sets'', obtaining substantial early warning times savings over the friends sensor scheme. Individuals with highest number of encounters are the most efficient sensors, with performance comparable to individuals with the highest travel frequency, exploratory behavior and structural centrality. An efficiency balance emerges when testing the dependency on sensor size and evaluating sensor reliability; we find that substantial and reliable lead-time could be attained by monitoring only 0.01% of the population with the highest degree.
Published in: Scientific Reports
Volume: 4
Pages: 5099
ISSN: 2045-2322
Publication date / Date received: 2014-01-01
Publication status: London
Publication status: Published
Language: English
DBID source: FORM-1390380074, SCOPUS-84902153698, WOS-000336835600001
DOI: 10.1038/srep05099
Nebis system number: 006751867
, Halldórsdóttir, Katrín, Rieser-Schüssler, Nadine, Axhausen, Kay W., Nielsen, Otto A., Prato, Carlo G., 2014 >>
Author(s): Halldórsdóttir, Katrín, Rieser-Schüssler, Nadine, Axhausen, Kay W., Nielsen, Otto A., Prato, Carlo G.
Title: Efficiency of choice set generation methods for bicycle routes
Abstract: The current study analyses the efficiency of choice set generation methods for bicycle routes and proposes the extension of cost functions to bicycle-oriented factors not limited to distance and time. Three choice set generation methods for route choice were examined in their ability to generate relevant and heterogeneous routes: doubly stochastic generation function, breadth first search on link elimination, and branch & bound algorithm. Efficiency of the methods was evaluated for a high-resolution network by comparing the performances with four multi-attribute cost functions accounting for scenic routes, dedicated cycle lanes, and road type. Data consisted of 778 bicycle trips traced by GPS and carried out by 139 persons living in the Greater Copenhagen Area, in Denmark. Results suggest that both the breadth first search on link elimination and the doubly stochastic generation function generated realistic routes, while the former outperformed in computation cost and the latter produced more heterogeneous routes.2
Published in: European Journal of Transport and Infrastructure Research
Volume: 14
Issue: 4
Pages: 332 - 348
ISSN: 1567-7133, 1567-7141
Publication date / Date received: 2014-12-01
Publication status: Delft
Publication status: Published
Subjects: Bicycle route choice, Bicycle route generation, Branch and bound, Breadth first search, Choice set generation, Stochastic generation function
Language: English
Keyword: Bicycle route choice, Bicycle route generation, Branch and bound, Breadth first search, Choice set generation, Stochastic generation function
DBID source: FORM-1349423770, WOS-000345856600002
Nebis system number: 010246475
, Horni, Andreas, Axhausen, Kay W., 2014 >>
Author(s): Horni, Andreas, Axhausen, Kay W.
Title: Distribution of Benefits and Losses From Roadpricing Illustrated in a Microsimulation Scenario
Abstract: This report describes the MATSim simulations performed to illustrate distribution of benefits in a road pricing context with trip-dependent varying preferences. The main hypothesis of the project Surprice is illustrated, that the inequality between income groups, induced by road pricing, in some cases might be smaller if intra-personal variation is also considered in the model rather than if only inter-personal variation is included in the calculation.
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 974
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1393413996
, Axhausen, Kay W., 2014 >>
Author(s): Axhausen, Kay W.
Title: Direct Demand Models
Subtitle: A Relevant Alternative In The Age Of Big Data?
Abstract: 2
Publication date / Date received: 2014-01-01
Publication status: Published
Event name: 19th International Conference of Hong Kong Society for Transportation Studies
Event date: December 13-15, 2014
Place: Hong Kong, China
Language: English
DBID source: FORM-1418636612
, Sun, Lijun, Jin, Jian Gang, Lee, Der-Horng, Axhausen, Kay W., Erath, Alexander, 2014 >>
Author(s): Sun, Lijun, Jin, Jian Gang, Lee, Der-Horng, Axhausen, Kay W., Erath, Alexander
Title: Demand-driven timetable design for metro services
Abstract: Timetable design is crucial to the metro service reliability. A straightforward and commonly adopted strategy in daily operation is a peak/off-peak-based schedule. However, such a strategy may fail to meet dynamic temporal passenger demand, resulting in long passenger waiting time at platforms and over-crowding in trains. Thanks to the emergence of smart card-based automated fare collection systems, we can now better quantify spatial-temporal demand on a microscopic level. In this paper, we formulate three optimization models to design demand-sensitive timetables by demonstrating train operation using equivalent time (interval). The first model aims at making the timetable more dynamic; the second model is an extension allowing for capacity constraints. The third model aims at designing a capacitated demand-sensitive peak/off-peak timetable. We assessed the performance of these three models and conducted sensitivity analyses on different parameters on a metro line in Singapore, finding that dynamical timetable built with capacity constraints is most advantageous. Finally, we conclude our study and discuss the implications of the three models: the capacitated model provides a timetable which shows best performance under fixed capacity constraints, while the uncapacitated model may offer optimal temporal train configuration. Although we imposed capacity constraints when designing the optimal peak/off-peak timetable, its performance is not as good as models with dynamical headways. However, it shows advantages such as being easier to operate and more understandable to the passengers.2
Published in: Transportation research. Part C, Emerging technologies
Volume: 46
Pages: 284 - 299
ISSN: 0968-090X
Publication date / Date received: 2014-09-01
Publication status: Oxford
Publication status: Published
Subjects: Metro system, Timetable, Smart card, Demand-driven
Language: English
Keyword: Metro system, Timetable, Smart card, Demand-driven
DBID source: FORM-1376651096, WOS-000343387300019
DOI: 10.1016/j.trc.2014.06.003
Nebis system number: 000889058
, Weis, Claude, Axhausen, Kay W., 2014 >>
Author(s): Weis, Claude, Axhausen, Kay W.
Title: Comportement des ménages et choix du mode de transport
Abstract: 2
Book title: Vers des comportements plus environnementaux : vue d'ensemble de l'enquête 2011
Published in: Etudes de l'OCDE sur la politique de l'environnement et le comportement des ménages
Pages: 127 - 166
ISBN: 978-92-64-19549-3, 978-92-64-19537-0
Publication date / Date received: 2014-02-01
Publication status: Paris
Publication status: Published
Language: French
DBID source: FORM-1413894792
DOI: 10.1787/9789264195493-fr
, Jäggi, Boris, Hohmann, Sandra, Axhausen, Kay W., Geistefeldt, Justin, 2014 >>
Author(s): Jäggi, Boris, Hohmann, Sandra, Axhausen, Kay W., Geistefeldt, Justin
Title: Comparison of estimates of travel time losses on high-capacity roads
Abstract: The paper compares two different approaches to estimate travel time losses on freeways based on a whole-year analysis. Both approaches are intended to improve the design process for freeways by accounting for the annual traffic demand profile as well as short time variance of demand and capacity. One approach estimates breakdown probability and delay related time losses based on a probabilistic model. The other approach uses a Monte-Carlo simulation to estimate travel time losses at freeway bottlenecks based on a queuing model with stochastic demand and capacity. Both approaches are based on annual hourly demand profiles. The approaches are compared for different demand profiles and deliver similar, but not equal results. Travel time losses for both approaches increase exponentially with traffic volume, with the simulation-based approach consistently generating higher time losses for higher traffic volumes. Both approaches are a substantial improvement on current design procedures, easy to apply and are recommended for adoption in traffic analysis guidelines.2
Published in: Transportation Research Record
Volume: 2461
Pages: 16 - 24
ISSN: 0361-1981, 2169-4052
Publication date / Date received: 2014-01-01
Publication status: Washington, DC
Publication status: Published
Event name: Transportation Research Board 93rd Annual Meeting
Event date: January 12-16, 2014
Place: Washington, DC, USA
Language: English
DBID source: FORM-1375774905
DOI: 10.3141/2461-03
, Montini, Lara, Prost, Sebastian, Schrammel, Johann, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2014 >>
Author(s): Montini, Lara, Prost, Sebastian, Schrammel, Johann, Rieser-Schüssler, Nadine, Axhausen, Kay W.
Title: Comparison of Travel Diaries Generated from Smartphone Data and Dedicated GPS Devices
Abstract: The goal of this paper, is to provide further insight into the usability of smartphones and dedicated GPS devices for collecting travel survey data at this point in time. For analysis, GPS and accelerometer time series of 31 PEACOX study participants are available, who were tracked simultaneously with smartphones and dedicated devices for 8 weeks. Meaningful diaries can be extracted from both data sources. If high resolution data is needed however, results suggest that dedicated GPS devices are still relevant, as they do not have battery issues thus more data is recorded and furthermore data quality is more stable.2
Publication date / Date received: 2014-01-01
Publication status: Unpublished
Event name: 10th International Conference on Transport Survey Methods
Event date: November 16-21, 2014
Place: Leura, Australia
Language: English
DBID source: FORM-1413479054
, Sun, Lijun, Jin, Jian Gang, Lee, Der-Horng, Axhausen, Kay W., 2014 >>
Author(s): Sun, Lijun, Jin, Jian Gang, Lee, Der-Horng, Axhausen, Kay W.
Title: Characterizing multimodal transfer time using smart card data
Subtitle: The effect of time, passenger age, crowdedness and collective pressure
Abstract: Understanding passenger transfer behavior is crucial to designing better multimodal transport networks and improving public transport service quality. However, obtaining data for modeling transfer behavior remains a challenge, in particular under complex facility configurations. The recent emergence of smart card data provides us with new and efficient data-driven approaches to modeling public transport systems. In this paper, we present the effect of time of day, day of week, age of passengers, crowdedness at stop/station and collective pressure in determining passenger transfer time. By analyzing transfer profiles provided by smart card transactions, we apply regression models to estimate the impact of each factor in determining passenger behavior under different scenarios. Using morning peak period as a base category, we find that passengers are faster during morning peaks even though it is more crowded. In terms of age of passengers, we find that children and senior citizens generally transfer slower than adults. However, children may outperform adults in passing through an overpass. The crowding effect at bus stop is not substantial unless passenger demand reaches its capacity, while the crowdedness at fare gantries always delays transferring. Finally, we identify the effect of collective pressure by using the number of fastest/slowest passengers around one individual as a proxy. A fast passenger around one individual is found to reduce his/her transfer time, while a slow passenger may delay the transfer significantly. This work presents some empirical evidence in understanding passenger transfer behavior in a multimodal transit network. The results could be integrated with physical surveys to better model pedestrian behaviors, supporting convenient facility design and public policy making.2
Published in: Arbeitsberichte Raum- und Verkehrsplanung
Volume: 1013
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1406994213
, Bodenmann, Balz R., Bode, Jeffrey W., Sanchez, Breogan, Zeiler, Alexandra, Furták, Peter, Kuljovský, Milan, Vecchi, I., Axhausen, Kay W., 2014 >>
Author(s): Bodenmann, Balz R., Bode, Jeffrey W., Sanchez, Breogan, Zeiler, Alexandra, Furták, Peter, Kuljovský, Milan, Vecchi, I., Axhausen, Kay W.
Title: An Integrated Land Use Model for Switzerland - Detailed Description of the FaLC Template
Abstract: The main goal of the first version of the Swiss Case Study is to test convenience and achieve- ment of the stated objectives for the whole FaLC project. The presented results are an interme- diate state of work in progress and refer to the softwares' and models' state in April 2014. FaLC as well as the Swiss Case Study will be further developed.
This report focuses on the different dynamic models that have been implemented in FaLC dur- ing the years 2012 and 2013 and is part of the FaLC documentation (comparable to an imple- mentation guide). Those implementations will also serve as a template for further Case Studies.2
Published in: FaLC Working Paper
Volume: 02
Publication date / Date received: 2014-01-01
Publication status: Herisau
Publication status: Published
Language: English
DBID source: FORM-1443025672
, Märki, Fabian, Charypar, David, Axhausen, Kay W., 2014 >>
Author(s): Märki, Fabian, Charypar, David, Axhausen, Kay W.
Title: Agent-based model for continuous activity planning with an open planning horizon
Abstract: The paper proposes a microscopic travel demand model that generates multi-week schedules by means of a continuous planning approach with an open planning horizon. This model introduces behavioral targets to describe people's motivation to perform activities, and it uses a planning heuristic to make on-the-fly decisions about upcoming activities. The planning heuristic bases its decisions on three aspects: a dis- 13 comfort index derived from deviations from agents' past performance with regard to their behavioral targets; the effectiveness of the immediate execution; and activity execution options available in the near future. The paper reports the results of a test scenario based on 16 an existing 6-week continuous travel diary and validates the model by comparing simulation results with observed behavioral patterns along several dimensions (weekday similarities, weekday execution probabilities of activities, transition probabilities between activities, duration distributions of activities, frequency distributions of activities, execution interval distributions of activities and weekly travel probability distributions). The results show that the model has the capability to reproduce observed behavior and the flexibility to introduces new behavioral patterns.
Published in: Transportation
Volume: 41
Issue: 4
Pages: 905 - 922
ISSN: 0049-4488, 1572-9435
Publication date / Date received: 2014-01-01
Publication status: Heidelberg
Publication status: Published
Subjects: Wirtschaft, Recht und Politik allgemein|Economics, Law and Politics, General, Continuous activity planning, Multi-week schedules, Multi-week diary validation, Microscopic travel demand simulation, Continuous target-based activity planning (C-TAP)
Language: English
Keyword: Continuous activity planning, Multi-week schedules, Multi-week diary validation, Microscopic travel demand simulation, Continuous target-based activity planning (C-TAP)
DBID source: FORM-1391763969, WOS-000338841000012
DOI: 10.1007/s11116-014-9512-y
Nebis system number: 000056550
, Waraich, Rashid A., Georges, Gil, Galus, Matthias D., Axhausen, Kay W., 2014 >>
Author(s): Waraich, Rashid A., Georges, Gil, Galus, Matthias D., Axhausen, Kay W.
Title: Adding electric vehicle modeling capability to an agent-based transport simulation
Abstract: Battery electric and plug-in hybrid electric vehicles are envisioned by many as a way to reduce CO2 traffic emissions, promote renewable electricity generation and thus increase energy security. Electric vehicle modeling is an active field of research, especially with regards to assessing the impact of electric vehicles on the electricity grid. But as highlighted in this chapter, there is a lack of modeling capability for detailed electricity demand and supply modeling. Furthermore it is also pointed out that such modeling requires an interdisciplinary approach and a possibility to reuse and integrate existing models. In order to solve this problem, a framework for electric vehicle modeling is presented, which provides strong capability for detailed electricity demand modeling and is built on an agent-based traffic simulation. A case study for the city of Zurich is presented, which highlights the capabilities of the framework to uncover possible bottlenecks in the electricity grid and its power to support policy makers in taking decisions.2
Book title: Data science and simulation in transportation research
Pages: 282 - 318
ISBN: 978-1-4666-4920-0, 1-4666-4920-8, 978-1-4666-4921-7, 1-4666-4921-6
Publication date / Date received: 2014-01-01
Publication status: Hershey, PA
Publication status: Published
Language: English
DBID source: FORM-1369135891, WOS-000364530200016
DOI: 10.4018/978-1-4666-4920-0.ch014
, Mendes, G.A., Axhausen, Kay W., Andrade, J.S., Herrmann, Hans J., 2014 >>
Author(s): Mendes, G.A., Axhausen, Kay W., Andrade, J.S., Herrmann, Hans J.
Title: A scenario planning approach for disasters on Swiss road network
Abstract: We study a vehicular traffic scenario on Swiss roads in an emergency situation, calculating how sequentially roads block due to excessive traffic load until global collapse (gridlock) occurs and in this way displays the fragilities of the system. We used a database from Bundesamt f ¨ r Raumentwicklung which contains length and maximum allowed speed of u all roads in Switzerland. The present work could be interesting for government agencies in planning and managing for emergency logistics for a country or a big city. The model used to generate the flux on the Swiss road network was proposed by Mendes et al 2012. It is based on the conservation of the number of vehicles and allows for an easy and fast way to follow the formation of traffic jams in large systems. We also analyze the difference between a non-linear and a linear model and the distribution of fluxes on the Swiss road.2
Published in: International journal of modern physics. C, Computational physics, physical computation
Volume: 25
Issue: 11
Pages: 1450067-1 - 1450067-11
ISSN: 0129-1831, 1793-6586
Publication date / Date received: 2014-11-01
Publication status: Singapore
Publication status: Published
Subjects: Scenario planning, Traffic gridlock, Emergency logistics, Evacuation planning
Language: English
Keyword: Scenario planning, Traffic gridlock, Emergency logistics, Evacuation planning
DBID source: FORM-1397823184, SCOPUS-84901731896, WOS-000343996000011
DOI: 10.1142/S0129183114500673
Nebis system number: 000552805
, Schirmer, Patrick M., Axhausen, Kay W., 2014 >>
Author(s): Schirmer, Patrick M., Axhausen, Kay W.
Title: A multiscale classification of the urban morphology
Abstract: Various studies in the field of Urban Planning and Design have given recommendations on "good urban forms", imposing that specific spatial characteristics inform the quality of an urban landscape and the way persons perceive this one, respectively behave in this one. When modeling spatial behavior in form of location choice models or hedonic prices we should reflect these spatial characteristics though integration of quantitative attributes as model variables, which is currently only done in a very limited way. The increasing availability of disaggregated geodata enlarges the options to characterize the urban morphology in form of such attributes. The question for the researcher remains which attributes are useful to reflect characteristics of the urban morphology and how these can be processed from the given data. In this paper we want to address this issue and give an overview of quantitative descriptions of the urban morphology. We base our work on a data model that is simple enough to allow for reproducibility on any study area. These attributes are classified in multiple scales to reflect different perceptions of the urban morphology. In a case study on the canton of Zurich we furthermore prove how these characteristics allow for definition of urban typologies in different scales.
Publication date / Date received: 2014-01-01
Publication status: Published
Event name: World Symposium on Transport and Land Use Research (WSTLUR)
Event date: June 24-27, 2014
Place: Delft, The Netherlands
Language: English
DBID source: FORM-1404348288
, Dubernet, Thibaut, Axhausen, Kay W., 2014 >>
Author(s): Dubernet, Thibaut, Axhausen, Kay W.
Title: A multiagent simulation framework for evaluating bike redistribution systems in bike sharing schemes
Abstract: In the recent years, more and more cities implement bike sharing schemes, where a set of bike is available for short-term rental between an origin and a destination station. Those systems are seen as an effective way to improve the image of biking in a city, but come with operational challenges. One particularly difficult problem is bike redistribution. Indeed, asymmetry in the travel demand and aversion for uphill riding often leads to shortage of bikes in stations with lots of departures and shortage of available slots in stations with lots of arrivals. This leads to the necessity to design redistribution strategies, usually by having light trucks take bikes from some stations and put bikes in others. The design of redistribution strategies to allow the provision of a reasonable Level of Service has mainly been studied under the angle of optimization, using historical data to create a model of demand. However, none of those approaches contains a model of the reaction of the demand to a change in the quality of the redistribution process. This paper thus takes the problem from a different angle: rather than designing optimal relocation strategies given a demand, it proposes a method to estimate the reactions of demand to a change in the relocation strategy. It demonstrates the usage of multi-agent activity-based simulation to estimate the reactions of demand to changes in the relocation strategies, taking into account explicitly the fact that a more efficient redistribution strategy will lead to a higher level of service, generating a new demand that might change the quality of the redistribution. This simulation system is tested on a scenario for the Zurich area, Switzerland, analysing the reaction of demand to two ideal redistribution strategies, i.e. no redistribution and optimal redistribution. Simulations show a big difference in demand depending on the quality of the redistribution, and even though no specific behavioral parameters for bike sharing were included, they seem to be able to reproduce the most salient characteristics of bike sharing travel from structural constraints only.2
Published in: Arbeitsberichte Raum- und Verkehrsplanung
Volume: 1010
Publication date / Date received: 2014-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1406992292

 

 

2013

 

, Zöllig, Christof, Axhausen, Kay W., 2013 >>
Author(s): Zöllig, Christof, Axhausen, Kay W.
Title: European Policy brief
Subtitle: Case studies in Paris, Zurich and Brussels
Abstract: This Policy Brief highlights the achievements in the three case studies which implement an land use transport interaction model for the given agglomeration. The case studies shall help to advance the state of the art of urban simulation models and to improve their diffusion among planners and decision-makers. To develop a European-adapted version of the urban micro-simulation tool UrbanSim and to implement it in three European cities (Paris, Zürich, Brussels), was the aim of the project.
Published in: SustainCity Deliverable
Volume: 7.3
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1383310442
, Zöllig Renner, Christof, Axhausen, Kay W., 2013 >>
Author(s): Zöllig Renner, Christof, Axhausen, Kay W.
Title: Comparing Estimation Results of Land Use Development Models Using Different Data Bases Available in Switzerland
Abstract: Land development models are often the weakest part of land use transport interaction models. This is partly because decisions on implementing real estate development projects are seldom recorded. In this context, the term project means a prepared plan for creating new space in the form of one or more buildings. Since the authors are interested in explaining the development of built space using discrete choice modeling, knowing about the decisions on projects would be ideal. However, registers are more likely to have information on existing buildings rather than data on project decisions. If the register contains the year of construction, this can be used as proof of a development decision. Unfortunately, registers do not include information on how many buildings were constructed in the same project. This paper discusses the issue of missing information on projects using parcel-based development location choice models. These models are being used in the implementation of an UrbanSim land use transport model for the Canton of Zurich in Switzerland. The purpose of the development location choice models is to locate development events generated by a transition model to update alternative locations for household and firm location choice models. To discover the effect, if any, of missing information about projects, the authors compare the parameters estimated on two different databases for each of four development location choice models. One database contains construction projects with multiple buildings, while the other contains only single buildings. The authors' conclusion is that using building registers is a viable option if no data on development projects is at hand, especially, if there are few projects with multi buildings in the considered area. However, register data often does not contain information on projects, which can lead to biased parameters because the size of the considered development events is too small.
Book title: TRB 92nd Annual Meeting Compendium of Papers
Publication date / Date received: 2013-01-01
Publication status: Washington, DC
Publication status: Published
Event name: 92nd Annual Meeting of the Transportation Research Board
Event date: January 13-17, 2013
Place: Washington, DC, USA
Language: English
DBID source: FORM-1381845418
, Weis, Claude, Vrtic, Milenko, Widmer, Paul, Axhausen, Kay W., 2013 >>
Author(s): Weis, Claude, Vrtic, Milenko, Widmer, Paul, Axhausen, Kay W.
Title: Influence of Parking on Location and Mode Choice
Subtitle: A Stated Choice Survey
Abstract: The survey was conducted with a sample of more than 1'200 pre-recruited respondents in Switzerland. Several characteristics of the respondents' regular travel were recorded during a recruitment interview, which the stated choice experiments were based on. The overall response rate was over 80 percent, and more than 14'000 observations were used for the estimation of the choice models presented here. Two different modeling approaches were tested: one with a deterministic model of taste heterogeneity (using interaction terms for trip distance, duration and income, as has been the practice in earlier studies), and one applying a random parameters approach. Both models were estimated in willingness-to-pay space. The model results indicate that parking characteristics have a significant effect on mode and location choice. The sample distributions for the relevant willingness-to-pay measures and the sample average demand elasticities inferred by the two models, as well as the overall model fit statistics, are slightly different. The deterministic assessment of taste heterogeneity is preferable for application in forecasting models, as it allows the direct computation of the expected effects of a policy on market shares.
Published in: Travel Survey Metadata Series
Volume: 41
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1371754441
, Weis, Claude, Dobler, Christoph, Axhausen, Kay W., 2013 >>
Author(s): Weis, Claude, Dobler, Christoph, Axhausen, Kay W.
Title: An Interactive Stated Adaptation Survey of Activity Scheduling Decisions
Book title: Transport survey methods : best practice for decision making
Pages: 569 - 590
ISBN: 978-1-78190-287-5, 978-1-78190-288-2
Publication date / Date received: 2013-01-01
Publication status: Bingley
Publication status: Published
Language: English
DBID source: FORM-1362999313
Nebis system number: 007617230
, Weis, Claude, Dobler, Christoph, Axhausen, Kay W., 2013 >>
Author(s): Weis, Claude, Dobler, Christoph, Axhausen, Kay W.
Title: A stated adaptation approach to surveying activity scheduling decisions
Abstract: 2
Book title: Transport survey methods : best practice for decision making
Pages: 569 - 589
ISBN: 978-1-78190-287-5, 978-1-78190-288-2
Publication date / Date received: 2013-01-01
Publication status: Bingley
Publication status: Published
Event name: 9th International Conference on Transport Survey Methods (ISCTSC)
Event date: November 14-18, 2011
Place: Termas de Puyehue, Chile
Language: English
DBID source: FORM-1328032094
Nebis system number: 007617230
, Weis, Claude, Axhausen, Kay W., 2013 >>
Author(s): Weis, Claude, Axhausen, Kay W.
Title: SVI Neuverkehr
Subtitle: Aktivitätenorientierte Analyse des Neuverkehrs
Abstract: Neuverkehr oder induzierter Verkehr, ein Phänomen welches hier als zusätzliche durch Verbesserungen der Verkehrsbedingungen erzeugte Verkehrsnachfrage definiert ist, ist in der Verkehrsmodellierung seit Jahren Thema verschiedener Forschungsprojekte. Diese konzentrierten sich bisher hauptsächlich auf die Bewertung der Nebeneffekte einzelner Massnahmen, welche solche Verbesserungen erzeugen. Im Vergleich zu früheren Studien, welche sich meist mit spezifischen und lokalen Veränderungen, wie z.B. dem Bau neuer Strassen oder Bahnlinien in bestimmten Korridoren, und vor allem mit deren Nebeneffekten, beschäftigten, weichen die Zielsetzungen im hier beschriebenen Projekt methodisch und thematisch ab. Es soll aufgezeigt werden, wie sich Veränderungen in den generalisierten Kosten der Verkehrsteilnahme auf die Erzeugung der Verkehrsnachfrage auswirken. Die interessierenden Dimensionen der Nachfrage liegen hier auf der Seite derer Erzeugung auf Individuen- bzw. Kohortenebene: die Wahrscheinlichkeit, an einem bestimmten Tag eine oder mehrere Aktivitäten ausser Haus zu unternehmen, also mobil zu sein; die Anzahl der unternommenen Aktivitäten und der damit einhergehenden Wege, Wegeketten und Reisen; und die daraus resultierenden gesamthaft ausser Haus verbrachten Dauern und zurückgelegten Entfernungen. Die zentralen Hypothesen betreffen hier Nachfrageveränderungen als Reaktion auf Veränderungen der generalisierten Kosten. Wenn die generalisierten Kosten der Verkehrsteilnahme sinken, steigen sowohl die Zeit- als auch die monetären Ressourcen zum Unternehmen von Wegen und Aktivitäten. Es wird angenommen, dass diese Verschiebung der Ressourcenverfügbarkeit in den hier relevanten Dimensionen zu einer Anzahl von nachfrageerzeugenden Reaktionen führt: • Zunahme der Wahrscheinlichkeit, an ausser-Haus-Aktivitäten teilzunehmen, also mobil zu sein; • Zunahme der Anzahl und Dauer der ausser Haus durchgeführten Aktivitäten und Wege; • Zunahme der Nachfrage nach Verkehrsleistungen (zurückgelegte Distanzen).
Published in: Travel Survey Metadata Series
Volume: 40
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Neuverkehr, Induzierter Verkehr
Language: German
Keyword: Neuverkehr, Induzierter Verkehr
DBID source: FORM-1371754182
, Weis, Claude, Axhausen, Kay W., 2013 >>
Author(s): Weis, Claude, Axhausen, Kay W.
Title: SBB-Studie: Benzinpreis und Bahnnutzung
Abstract: Selbst nachdem im Zuge der aktuellen Wirtschaftskrise die massiven Ölpreissteigerungen der vergangenen Monate gebremst worden sind, sind in mittelbarer Zukunft Benzinpreise von 4.- CHF pro Liter und mehr durchaus vorstellbar. Dies warf zum Zeitpunkt des Beginns der Studie die Frage auf, wie sich die Nachfrage im motorisierten Individualverkehr sowie im Öffentlichen Verkehr als Reaktion auf diese vorher nie dagewesenen Preisstrukturen verändern würde. Die Studie ergänzt und erweitert die Ergebnisse, welche bereits im Rahmen der Studien zur Verkehrsmittelwahl, zum Mobility in der Schweiz sowie zu den Zahlungsbereitschaften im Personenverkehr erzielt wurden. Die Erweiterung besteht darin, dass wie erwähnt weitaus hÖhere Preise als noch vor einigen Jahren angenommen vorstellbar sind. Die resultierenden Benzinpreiselastizitäten liegen beim heutigen Preisniveau zwischen -0.1 und -0.5. bei einem Benzinpreis von 5 CHF/l zwischen -0.2 und -1.5. Auch Effekte auf die langfristigen Entscheidungen, also die Ausstattung der Befragten mit Mobilitätswerkzeugen, konnten nachgewiesen werden.

Even after the heavy increases in fuel prices have been slowed by the current worldwide economic crisis, fuel prices of 4.- CHF per litre and more are quite imaginable in the mid-term future. At the beginning of the present study, the unusually high prices raised the question of how private and public transport demand would react to further changes. The study complements and extends the results that have been previously established in the Mode Choice, Mobility Pricing and Swiss Value of Travel Time Savings studies. The extension is the above mentioned larger bandwidth for travel. The resulting fuel price elasticities were found to be between -0.1 and -0.5 at the current price levels, and between -0.2 and -1.5 at a 5 CHF/l fuel price. Effects on long-term decisions, i.e. the respondents' mobility tool ownership, were also found to be significant.
Published in: Travel Survey Metadata Series
Volume: 39
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Benzinpreissteigerung, Verkehrsmittelwahl, Nachfrageelastizitäten, Mobilitätswerkzeugbesitz
Language: German
Keyword: Benzinpreissteigerung, Verkehrsmittelwahl, Nachfrageelastizitäten, Mobilitätswerkzeugbesitz
DBID source: FORM-1371753767
, Weis, Claude, Axhausen, Kay W., 2013 >>
Author(s): Weis, Claude, Axhausen, Kay W.
Title: Household behaviour and transport choices
Abstract: This chapter presents an overview of the data on the determinants of households' personal transport choices. It examines the effects of various types of public policies influencing transport demand, such as financial incentives to buy "cleaner" vehicles or car labelling. It also looks at differences in behaviour across households and the effect of norms and attitudes.
Book title: Greening household behaviour : overview from the 2011 survey
Pages: 113 - 148
ISBN: 978-92-64-18082-6, 978-92-64-18137-3
Publication date / Date received: 2013-01-01
Publication status: Paris
Publication status: Published
Language: English
DBID source: FORM-1374490121
, Weis, Claude, Axhausen, Kay W., 2013 >>
Author(s): Weis, Claude, Axhausen, Kay W.
Title: Aktivitätenorientierte Analyse des Neuverkehrs
Subtitle: Leitfaden 2012/02
Publication date / Date received: 2013-01-01
Publication status: St. Gallen
Publication status: Published
Language: German
DBID source: FORM-1365697688
, Waraich, Rashid A., Galus, Matthias D., Dobler, Christoph, Balmer, Michael, Andersson, Göran, Axhausen, Kay W., 2013 >>
Author(s): Waraich, Rashid A., Galus, Matthias D., Dobler, Christoph, Balmer, Michael, Andersson, Göran, Axhausen, Kay W.
Title: Plug-in Hybrid Electric Vehicles and Smart Grids
Subtitle: Investigations Based on a Microsimulation
Abstract: The introduction of plug-in hybrid electric vehicles (PHEVs) and electric vehicles (EVs), commonly referred to as plug-in electric vehicles (PEVs), could trigger a stepwise electrification of the whole transportation sector. However, the potential impact of PEV charging on the electric grid is not fully known, yet. This paper presents an iterative approach, which integrates a PEV electricity demand model and a power system simulation to reveal potential bottlenecks in the electric grid caused by PEV energy demand. An agent-based traffic demand model is used to model the electricity demand of each vehicle over the day. An approach based on interconnected multiple energy carrier systems is used as a model for a possible future energy system. Experiments demonstrate that the model is sensitive to policy changes, e.g., changes in electricity price result in modified charging patterns. By implementing an intelligent vehicle charging solution it is demonstrated how new charging schemes can be designed and tested using the proposed framework.
Published in: Transportation research. Part C, Emerging technologies
Volume: 28
Pages: 74 - 86
ISSN: 0968-090X
Publication date / Date received: 2013-01-01
Publication status: Oxford
Publication status: Published
Subjects: Verkehr und Transport|Traffic and Transportation, Plug-in-hybrid electric vehicles, PHEV, Smart grid, Vehicle-to-Grid, V2G, Simulation framework
Language: English
Keyword: Plug-in-hybrid electric vehicles, PHEV, Smart grid, Vehicle-to-Grid, V2G, Simulation framework
DBID source: FORM-1349426141, FORM-1380549643, WOS-000316433900006
DOI: 10.1016/j.trc.2012.10.011
Nebis system number: 000889058
, Waraich, Rashid A., Dobler, Christoph, Weis, Claude, Axhausen, Kay W., 2013 >>
Author(s): Waraich, Rashid A., Dobler, Christoph, Weis, Claude, Axhausen, Kay W.
Title: Optimizing Parking Prices Using an Agent Based Approach
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 92nd Annual Meeting of the Transportation Research Board
Event date: January 13-17, 2013
Place: Washington, DC, USA
Language: English
DBID source: FORM-1360745077
, Waraich, Rashid A., Dobler, Christoph, Weis, Claude, Axhausen, Kay W., 2013 >>
Author(s): Waraich, Rashid A., Dobler, Christoph, Weis, Claude, Axhausen, Kay W.
Title: Optimizing Parking Prices Using Agent-Based Approach
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 92nd Annual Meeting of the Transportation Research Board
Event date: January 13-17, 2013
Place: Washington, DC, USA
Language: English
DBID source: FORM-1349427208
, Waraich, Rashid A., Dobler, Christoph, Axhausen, Kay W., 2013 >>
Author(s): Waraich, Rashid A., Dobler, Christoph, Axhausen, Kay W.
Title: Simulating Parking Search
Abstract: In the recent years several agent-based parking models have emerged, which provide policy makers with temporally and spatially rich data, what would be impossible to acquire using aggregated models. As we found out, all recent agent-based parking search models, lack the ability to account for the influence of parking shortages on mode or location choice. We close this modelling gap by proposing a new parking search model, which should be built on top of an existing agent-based traffic simulation called MATSim. We point out, that the parking strategy evaluation procedure of the previous parking search models delivers systematically too high search times which can be avoided using the proposed approach. Furthermore we also describe how individual valuation of parking search components (e.g. search time, cost and walk time) could be incorporated in the model. Currently an implementation of the proposed parking search model and an application for the city of Zurich is in progress.
Publication date / Date received: 2013-01-01
Publication status: Ascona
Publication status: Published
Subjects: Agent-based, Parking search, Micro-simulation, Evolutionary, MATSim
Event name: 13th Swiss Transport Research Conference (STRC 2013)
Event date: April 24-26, 2013
Place: Ascona, Switzerland
Language: English
Keyword: Agent-based, Parking search, Micro-simulation, Evolutionary, MATSim
DBID source: FORM-1367331455
, Waraich, Rashid A., Dobler, Christoph, Axhausen, Kay W., 2013 >>
Author(s): Waraich, Rashid A., Dobler, Christoph, Axhausen, Kay W.
Title: A Parking Search Strategy Equilibrium Model
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 914
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Accepted
Language: English
DBID source: FORM-1376645432
, Waraich, Rashid A., Axhausen, Kay W., 2013 >>
Author(s): Waraich, Rashid A., Axhausen, Kay W.
Title: Integration of Optimal Charging Locations into a Transportation Energy Simulation Framework
Publication date / Date received: 2013-01-01
Event name: 8th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES 2013)
Event date: September 2013
Place: Dubrovnik, Croatia
Language: English
DBID source: FORM-1409845762
, Waraich, Rashid A., Axhausen, Kay W., 2013 >>
Author(s): Waraich, Rashid A., Axhausen, Kay W.
Title: Integration of Optimal Charging Locations into a Transportation Energy Simulation Framework
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 8th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES 2013)
Event date: September 22-27, 2013
Place: Dubrovnik, Croatia
Language: English
DBID source: FORM-1376645926, FORM-1409845762
, Vitins, Basil Janis, Garcia-Dorado, Ignacio, Vanegas, Carlos, Aliaga, Daniel, Axhausen, Kay W., 2013 >>
Author(s): Vitins, Basil Janis, Garcia-Dorado, Ignacio, Vanegas, Carlos, Aliaga, Daniel, Axhausen, Kay W.
Title: Evaluation of Shape Grammar Rules for Urban Transport Network Design
Abstract: Shape grammar rules are increasingly applied in urban simulation. Even though many network design standards propose shape grammar rules, little is known of the measurable impact of these rules on the performance of transport networks. This paper provides a general definition of shape grammar rules for transport network design. Different rules are evaluated regarding a comprehensive objective function. Networks are designed and simulated on featureless planes to avoid a bias due to history. Findings are compared with real-world case studies. Different network characteristics are evaluated in this paper. The densities of network loops are high in all generated networks, and comparable with real-world grids and medieval fabrics. The average length of network loops decreases as an inverse function of road density, which is in line with graph theory. Intersection density is proportional to the network length. The average number or arms of an intersection depends on road density. A denser network has a disproportionately higher density of 4 arm intersections, compared to less denser networks. Additionally, different road types are assigned to each road segment. Hierarchical road type distribution has a significant but low influence on network user costs. Terrain boundaries, as well as predefined roads (e.g. boulevards) increase average user costs. However, the average increase strongly depends on the number of bridges and on the boulevard capacity. The results show that shape grammar rules for transport network design can be evaluated to increase the understanding of their impacts, which supports future design standards.
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 92nd Annual Meeting of the Transportation Research Board
Event date: January 13-17, 2013
Place: Washington, D.C.
Language: English
Review status: Peer reviewed
DBID source: FORM-1353322589
, Vitins, Basil J., Axhausen, Kay W., 2013 >>
Author(s): Vitins, Basil J., Axhausen, Kay W.
Title: Adaptive Network Design versus Rigid Patterns
Subtitle: Can We Do Better than a Grid?
Abstract: Numerous different transport networks were built in the past centuries, lasting as remaining rigid structures in an urban plan. However, almost every preferred pattern got revised over time, leading to a reformulation of the network and its topology. In recent years, computational efficiency allows the construction of detailed models of transport networks, to predict and optimize efficiency of transport networks. Different rigid patterns are compared against optimized networks, and evaluated in detail. The proposed methodology includes, beside standard road volume-delay-functions, the turn movements of intersections in detail. The major intersection types are evaluated regarding turn delay in an isolated and network environment. This paper compares rigid network patterns with a more generic design approach. Different network patterns result in considerable different travel costs. The proposed optimized approach levels or outperforms the patterns depending on the intersection type. However, optimized networks remain adaptivity, e.g. for terrain constraints.
Publication date / Date received: 2013-01-01
Publication status: Ascona
Publication status: Published
Subjects: Urban, Simulation, Intersection, Delay, Shape grammar, Rule, Pattern, Network, IACGA
Event name: 13th Swiss Transport Research Conference (STRC 2013)
Event date: April 24-26, 2013
Place: Ascona, Switzerland
Language: English
Keyword: Urban, Simulation, Intersection, Delay, Shape grammar, Rule, Pattern, Network, IACGA
DBID source: FORM-1367331026
, Theler, Bernd, Axhausen, Kay W., 2013 >>
Author(s): Theler, Bernd, Axhausen, Kay W.
Title: When is a bus full?
Subtitle: A study of perception
Abstract: Crowding on buses, trams and trains leads to a deteriorated performance of the public transport system through increased waiting times and vehicle bunching, and is naturally resented by its customers. In the past, i.e. in the absence of smart card ticketing system, crowding was difficult to measure in any detail and therefore to trace its impact on user behaviour, e.g. trip making, route and departure time choice by user characteristics. As a result stated preference surveys were the preferred instrument to measure its differential impact. Surprisingly, little research has been undertaken on the perception of the terms: full, crowed, overcrowded etc., used in such surveys. In this paper we describe an exercise, which made the perception the focus of its work. Using a set of images and a sample of users on crowded bus lines in Zürich we establish the likelihood that they will declare a bus full and link this to their socio-demographics.
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 855
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Crowding, Perception, Bus, Zürich, Stated Choice
Language: English
Keyword: Crowding, Perception, Bus, Zürich, Stated Choice
DBID source: FORM-1361963576
, Sun, Lijun, Axhausen, Kay W., Lee, Der-Horng, Huang, Xianfeng, 2013 >>
Author(s): Sun, Lijun, Axhausen, Kay W., Lee, Der-Horng, Huang, Xianfeng
Title: Understanding metropolitan patterns of daily encounters
Abstract: Understanding of the mechanisms driving our daily face-to-face encounters is still limited; the field lacks large-scale datasets describing both individual behaviors and their collective interactions. However, here, with the help of travel smart card data, we uncover such encounter mechanisms and structures by constructing a time-resolved in-vehicle social encounter network on public buses in a city (about 5 million residents). This is the first time that such a large network of encounters has been identified and analyzed. Using a population scale dataset, we find physical encounters display reproducible temporal patterns, indicating that repeated encounters are regular and identical. On an individual scale, we find that collective regularities dominate distinct encounters' bounded nature. An individual's encounter capability is rooted in his/her daily behavioral regularity, explaining the emergence of "familiar strangers" in daily life. Strikingly, we find individuals with repeated encounters are not grouped into small communities, but become strongly connected over time, resulting in a large, but imperceptible, small-world contact network or "structure of co-presence" across the whole metropolitan area. Revealing the encounter pattern and identifying this large-scale contact network are crucial to understanding the dynamics in patterns of social acquaintances, collective human behaviors, and – particularly – disclosing the impact of human behavior on various diffusion/spreading processes.
Published in: Proceedings of the National Academy of Sciences of the United States of America
Volume: 110
Issue: 34
Pages: 13774 - 13779
ISSN: 0027-8424, 1091-6490
Publication date / Date received: 2013-01-01
Publication status: Washington, DC
Publication status: Published
Subjects: Human mobility, Behavioral rhythms, Social networks, Social sciences
Language: English
Keyword: Human mobility, Behavioral rhythms, Social networks, Social sciences
DBID source: FORM-1373573083, SCOPUS-84882800907
DOI: 10.1073/pnas.1306440110
Nebis system number: 001003347
, Sun, Lijun, Axhausen, Kay W., 2013 >>
Author(s): Sun, Lijun, Axhausen, Kay W.
Title: Familiar strangers
Subtitle: Understanding metropolitan patterns of daily encounters
Abstract: 2
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: International School and Conference on Network Science 2013
Event date: June 3-7, 2013
Place: Copenhagen, Denmark
Language: English
DBID source: FORM-1376653684
, Schönfelder, Stefan, Axhausen, Kay W., 2013 >>
Author(s): Schönfelder, Stefan, Axhausen, Kay W.
Title: Univox 2009 - Verkehrsverhalten und Projekte
Abstract: UNIVOX ist eine umfassende Langzeitbeobachtung unserer Gesellschaft, die das GfS- Forschungsinstitut in Zusammenarbeit mit rund 20 spezialisierten, zumeist universitären Instituten seit 1986 jährlich realisiert. Gesamtverantwortung und Koordination: GfS- Forschungsinstitut, Abteilung "Wirtschaftsforschung und Sozialmarketing". Univox 2009: Die UNIVOX – Befragungen der Zürcher Gesellschaft für Sozialforschung (GfS) geben seit Jahrzehnten ein Bild der Schweizer Gesellschaft und ihrer Veränderungen. Das Verkehrsverhalten, als ein zentrales Element der Lebenswelt einer Gesellschaft, wird seit 1999 mit dem gleichen Satz an Fragen beschrieben (Axhausen, 1999; Axhausen und Martinovits, 2001; Axhausen, 2002; Axhausen, Beige und Martinovits, 2004 und Beige und Axhausen, 2005). In jedem Fall wurde die Befragung mit einem Satz an Fragen zu einem jeweils aktuellen Thema ergänzt. Dieses aktuelle Thema konnte methodisch oder politisch begründet sein. Im aktuellen UNIVOX 2009 ist es ein methodisches Thema, das aber gleichzeitig eines spannenden Einblick in die Lebenswelt der Schweizer gibt: die Frage, wie kurz- und längerfristige Projekte den Alltag strukturieren. Der Bericht teilt sich deshalb in zwei Teile auf. Im ersten Teil wird die Entwicklung des Mobilitätswerkzeugbesitzes und der individuellen Verkehrsnachfrage seit 1999 betrachtet und analysiert. Der zweite Teil beschreibt die Projekte, ihren Zusammenhang mit der Sozio-Demographie der Befragten und ihre Wirkung auf die Jahresfahrleitungen der Befragten. Ein Anhang beschreibt die Stichprobe und die Durchführung der Befragung.
Published in: Travel Survey Metadata Series
Volume: 38
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Univox 2009
Language: German
Keyword: Univox 2009
DBID source: FORM-1375698351
, Schirmer, Patrick M., Zöllig Renner, Christof, Müller, Kirill, Bodenmann, Balz R., Axhausen, Kay W., 2013 >>
Author(s): Schirmer, Patrick M., Zöllig Renner, Christof, Müller, Kirill, Bodenmann, Balz R., Axhausen, Kay W.
Title: Integrated LandUse Transport Simulation in Zurich
Subtitle: The Zurich case study with UrbanSim
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 53rd ERSA Congress: Regional Integration: Europe, the Mediterranean and the World Economy
Event date: August 27-31, 2013
Place: Palermo, Italy
Language: English
DBID source: FORM-1396555014
, Schirmer, Patrick M., Eggermond, Michael A.B. van, Axhausen, Kay W., 2013 >>
Author(s): Schirmer, Patrick M., Eggermond, Michael A.B. van, Axhausen, Kay W.
Title: Measuring Location in Residential Location Choice: An Empirical Study on the Canton of Zurich
Abstract: In transportation and land-use research, discrete choice models have become a common method for assessing the value or utility of discrete alternatives for an individual choice-maker and have led to the simulation of land-use developments on a microscopic level. Discrete location choice models represent relocation behavior in those simulations and generally implement three groups of variables, representing attributes of the alternative, the decision-taker and the location. With the growing availability of spatial data on a disaggregated level, a large number of location variables have been reported in these models, which reduces their comparability and their transferability to other study areas. To address this limitation, Schirmer et al. (2012) classified location variables and proposed a common set of attributes as an initial setup. In this paper, we explore the impact of these attributes on residential location choice in the Canton of Zurich.2
Publication date / Date received: 2013-01-01
Publication status: Accepted
Event name: 13th International Conference on Computers in Urban Planning and Urban Management (CUPUM 2013)
Event date: July 2-5, 2013
Place: Utrecht, The Netherlands
Language: English
DBID source: FORM-1368636491
, Schirmer, Patrick, Zöllig Renner, Christof, Müller, Kirill, Bodenmann, Balz, Axhausen, Kay W., 2013 >>
Author(s): Schirmer, Patrick, Zöllig Renner, Christof, Müller, Kirill, Bodenmann, Balz, Axhausen, Kay W.
Title: LandUse Simulation on the Canton of Zurich
Subtitle: Final
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 13th Swiss Transport Research Conference (STRC 2013)
Event date: April 24-26, 2013
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1367330366
, Schirmer, Patrick, Eggermond, Michael A.B. van, Axhausen, Kay W., 2013 >>
Author(s): Schirmer, Patrick, Eggermond, Michael A.B. van, Axhausen, Kay W.
Title: Towards comparability in residential location choice modeling - a review of literature
Abstract: With the availability of disaggregated spatial data, residential location choice models have become more and more diverse in the hypothesis tested. This reduces the comparability of the main findings in different studies, although one might expect a comparable human behavior for comparable study areas. In the paper we review recent literature of the residential location choice models on a disaggregated level, in order to conclude in a set of variables recommended for use in models and simulations.
Published in: Journal of transport and land use
ISSN: 1938-7849
Publication date / Date received: 2013-01-01
Publication status: Minneapolis, MN
Publication status: Accepted
Subjects: Residential location choice, Agent-based modeling, Urban simulation, Planning support systems, Discrete choice model
Language: English
Keyword: Residential location choice, Agent-based modeling, Urban simulation, Planning support systems, Discrete choice model
DBID source: CSV-
, Schirmer, Patrick, Belart, Benjamin C., Axhausen, Kay W., 2013 >>
Author(s): Schirmer, Patrick, Belart, Benjamin C., Axhausen, Kay W.
Title: Wohnstandortwahl im Grossraum Zürich
Subtitle: Choice Set Sampling
Abstract: Die Arbeit untersucht das Wohnstandortwahlverhalten von Privathaushalten im Kanton Zürich. Als Datenbasis dienen die Angaben von 1'039 Haushalten, die an einer brieflichen Umfrage teilgenommen haben. Die Stichprobe enthält einen hohen Anteil gut ausgebildeter und gut verdienender Personen. Zudem zeigt sich das Segment der Dreissig- bis Vierzigjährigen am mobilsten. Mit zwei unterschiedlichen Instrumenten werden die Haushalte in Lebensstiltypen klassifiziert. Das Wohnstandortwahlverhalten ist stark lokal ausgerichtet. über 50% der Haushalte bewegen sich bei einem Umzug nicht weiter als 5 Kilometer vom alten Wohnort weg. Mit den Beobachtungen werden multinominelle Logit-Modelle der Wohnstandortwahl Für Mieter und Eigentümer geschätzt, welche die trade-offs zwischen Haushalts-, Wohnungs- und Standorteigenschaften abbilden. Für die Generierung der Alternativensets werden Angebote vom Immobilienportal Comparis in einem simple random sampling verwendet. Die Modelle Für beide Gruppen können stark verbessert werden, indem die Arbeits-/ Ausbildungsorte aller Haushaltsmitglieder und die Wohnorte der sozialen Kontakte berücksichtigt werden. Eigentümer suchen gegenüber Mietern stärker die Distanz zum städtischen Zentrum. Einige Lebensstiltypen zeigen erkennbare Unterschiede in der Bewertung von Standorteigenschaften. Die Berücksichtigung dieser Unterschiede verbessert die Modelle jedoch nur minim.
Published in: Travel Survey Metadata Series
Volume: 55
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Wohnstandortwahl, Haushaltsbefragung, Lebensstil, Haushaltstyp, Diskrete Entscheidungsmodelle
Language: German
Keyword: Wohnstandortwahl, Haushaltsbefragung, Lebensstil, Haushaltstyp, Diskrete Entscheidungsmodelle
DBID source: FORM-1386686499
, Schirmer, Patrick, Belart, Benjamin C., Axhausen, Kay W., 2013 >>
Author(s): Schirmer, Patrick, Belart, Benjamin C., Axhausen, Kay W.
Title: Wohnstandortwahl im Grossraum Zürich
Subtitle: Haushaltsbefragung
Abstract: Die Arbeit untersucht das Wohnstandortwahlverhalten von Privathaushalten im Kanton Zürich. Als Datenbasis dienen die Angaben von 1'039 Haushalten, die an einer brieflichen Umfrage teilgenommen haben. Die Stichprobe enthält einen hohen Anteil gut ausgebildeter und gut verdienender Personen. Zudem zeigt sich das Segment der Dreissig- bis Vierzigjährigen am mobilsten. Mit zwei unterschiedlichen Instrumenten werden die Haushalte in Lebensstiltypen klassifiziert. Das Wohnstandortwahlverhalten ist stark lokal ausgerichtet. über 50% der Haushalte bewegen sich bei einem Umzug nicht weiter als 5 Kilometer vom alten Wohnort weg. Mit den Beobachtungen werden multinominelle Logit-Modelle der Wohnstandortwahl Für Mieter und Eigentümer geschätzt, welche die trade-offs zwischen Haushalts-, Wohnungs- und Standorteigenschaften abbilden. Für die Generierung der Alternativensets werden Angebote vom Immobilienportal Comparis in einem simple random sampling verwendet. Die Modelle Für beide Gruppen können stark verbessert werden, indem die Arbeits-/ Ausbildungsorte aller Haushaltsmitglieder und die Wohnorte der sozialen Kontakte berücksichtigt werden. Eigentümer suchen gegenüber Mietern stärker die Distanz zum städtischen Zentrum. Einige Lebensstiltypen zeigen erkennbare Unterschiede in der Bewertung von Standorteigenschaften. Die Berücksichtigung dieser Unterschiede verbessert die Modelle jedoch nur minim.
Published in: Travel Survey Metadata Series
Volume: 54
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Wohnstandortwahl, Haushaltsbefragung, Lebensstil, Haushaltstyp, Diskrete Entscheidungsmodelle
Language: German
Keyword: Wohnstandortwahl, Haushaltsbefragung, Lebensstil, Haushaltstyp, Diskrete Entscheidungsmodelle
DBID source: FORM-1386686129
, Rieser-Schüssler, Nadine, Balmer, Michael, Axhausen, Kay W., 2013 >>
Author(s): Rieser-Schüssler, Nadine, Balmer, Michael, Axhausen, Kay W.
Title: Route Choice Sets for Very High-Resolution Data
Abstract: With the increasing use of GPS in transport surveys, analysts can choose from numerous new ways to model travel behaviour – but also face several new challenges. For instance, information about chosen routes is now available with a high level of spatial and temporal accuracy. However, advanced post-processing is necessary to make this information usable for route choice modelling. Out of many related issues, this paper focusses on generation of choice sets for car trips extracted from GPS data. The aim is to generate choice sets for about 36,000 car trips made by 2,434 persons living in and around Zurich, Switzerland, on the Swiss Navteq network, a very high-resolution network. This network resolution is essential for an accurate identification of chosen routes. However, it substantially increases the requirements for the choice set generation algorithm in regard to performance as well as choice set composition. This paper presents a new route set generation based on shortest path search with link elimination. The proposed procedure combines a Breadth First Search with a topologically equivalent network reduction and ensures a high diversity between the routes, as well as computational feasibility for large-scale problems like the one described above. To demonstrate the usability of the algorithm, its performance and the resulting route sets are compared to those of a stochastic choice set generation algorithm.
Published in: Transportmetrica. A, Transport science
Volume: 9
Issue: 9
Pages: 825 - 845
ISSN: 1944-0987, 1812-8602
Publication date / Date received: 2013-01-01
Publication status: London
Publication status: Published
Subjects: GPS data, Choice set generation, High-resolution networks, Performance, Route choice
Language: English
Review status: Peer reviewed
Keyword: GPS data, Choice set generation, High-resolution networks, Performance, Route choice
DBID source: FORM-1332346839, WOS-000326670500003
DOI: 10.1080/18128602.2012.671383
Nebis system number: 007198362
, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2013 >>
Author(s): Rieser-Schüssler, Nadine, Axhausen, Kay W.
Title: Identifying chosen public transport connections from GPS observations
Abstract: Transport planners around the world are currently searching for innovative strategies for customer-friendly and efficient public transport systems. An important element in this pro- cess is the understanding of the passengers' valuation of different elements of public transport trips. A challenge associated with this is the observation of the actual passenger behaviour in all its complexity. One way to address this challenge is to use person-based GPS devices for the observation of the public transport connections chosen by passengers. GPS-based studies have become increasingly popular in the last two decades and their advantages for observing and modelling car and bicycle route choice have been shown by many studies. However, for public transport connection choice the processing routines to extract the chosen connections and their relevant attributes from the GPS traces have so far been missing. This paper reports on a first implementation of such a procedure called "public transport map-matching". The basic idea is to first employ a car map-matching procedure for each stage of a public transport trip to determine the route within the public transport network. Then, this route is used to find the most likely public transport line and the respective boarding and alighting stops. Finally, the stages of the public transport trip are joined together including the access and egress stages by walk or bicycle. The procedure is tested using the data from an ongoing GPS study in Zurich – an area in Switzerland with a very dense public transport network.2
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 92nd Annual Meeting of the Transportation Research Board
Event date: January 13-17, 2013
Place: Washington, DC, USA
Language: English
DBID source: FORM-1384070961
, Pospischil, Andreas, Hässig, Michael, Vogel, Regula, Salvini, Marco M., Fabrikant, Sara, Axhausen, Kay W., Schenker, Nadja S., Erni, Daniel, Guscetti, Franco, 2013 >>
Author(s): Pospischil, Andreas, Hässig, Michael, Vogel, Regula, Salvini, Marco M., Fabrikant, Sara, Axhausen, Kay W., Schenker, Nadja S., Erni, Daniel, Guscetti, Franco
Title: Hundepopulation und Hunderassen in der Schweiz von 1955 bis 2008
Abstract: Ziel der vorliegenden Studie ist es, eine Zusammenstellung der Hundepopulation und der Rasseverteilung in der Schweiz von 1955 bis 2008 zu erstellen, die als Grundlage bei der Erstellung eines populationsbasierten Registers von Tumoren bei Hunden in der Schweiz für den gleichen Zeitraum dienen soll. Die absolute Zahl der in der Schweiz gehaltenen Hunde steigt von 1955 bis 2008 von ca. 309`000 kontinuierlich auf ca. 500`000 an. Dieser Anstieg korreliert klar mit der Zunahme der Bevölkerung in diesem Zeitraum, die Zahl von Hunden pro 100 Einwohner bleibt nahezu konstant. In Deutschschweizer Kantonen und in städtischen Gebieten werden deutlich weniger Hunde pro 100 Einwohner gehalten als in Westschweizer Kantonen und ländlichen Gegenden. In der Zeit von 1955 bis 2008 ändert sich die Beliebtheit von Rassen, die registriert werden, wie dies aus Daten für den Kanton Zürich hervorgeht. Absolute "Gewinner" sind Labrador- und Golden Retriever, Yorkshire- und Jack Russel Terrier und Collies. Zu den "Verlierern" gehören unter anderem Deutscher Schäferhund und Pudel. Auch hier bestehen Unterschiede zwischen städtischen und ländlichen Gebieten.2
Published in: Schweizer Archiv für Tierheilkunde
Volume: 155
Issue: 4
Pages: 219 - 228
ISSN: 0036-7281, 1664-2848
Publication date / Date received: 2013-04-01
Publication status: Bern
Publication status: Published
Language: German
DBID source: FORM-1332938421
DOI: 10.1024/0036-7281/a000450
Nebis system number: 000976952
, Märki, Fabian, Charypar, David, Axhausen, Kay W., 2013 >>
Author(s): Märki, Fabian, Charypar, David, Axhausen, Kay W.
Title: Integration of Household Interaction with a Continuous Simulation Model
Abstract: This paper presents an approach to integrate social interactions with a agent based simulation model for continuous activity planning. It describes an interface to the underlying target-based model providing the possibility to influence agents' behavior by manipulating targets and effectiveness functions. It proposes tasks as the mean for exogenous modules to interact with agents and describes a module for managing social interactions among agents. This module uses the interface to ensure agents adhere to appointments and meet at arranged locations and specified dates. The validation of the approach focuses on activities shared among household members requiring regular meetings to arrange future responsibilities. We conclude by suggesting directions for future research.
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 13th Swiss Transport Research Conference (STRC 2013)
Event date: April 24-26, 2013
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1367322920
, Montini, Lara, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2013 >>
Author(s): Montini, Lara, Rieser-Schüssler, Nadine, Axhausen, Kay W.
Title: One-Week GPS-based Travel Survey in the Greater Zurich Area
Subtitle: Field Report
Abstract: This papers reports on a GPS-based activity diary survey accompanied by psychometric scales to observe the influence of different attitudes on mode and route choice. The survey was implemented as online questionnaire. 156 participants collected approximately one week of GPS data each; the first participant in August 2011 and the last in December 2012, all living in the greater Zurich area. Completion of the questionnaires is very diverse, but overall a very detailed GPS data set was gained, which will be very valuable in further development of post-processing routines.
Publication date / Date received: 2013-01-01
Publication status: Ascona
Publication status: Published
Subjects: GPS, Post-processing, Activity detection, Mode identification, Prompted recall, Respondent burden
Event name: 13th Swiss Transport Research Conference (STRC 2013)
Event date: April 26-28, 2013
Place: Ascona, Switzerland
Language: English
Keyword: GPS, Post-processing, Activity detection, Mode identification, Prompted recall, Respondent burden
DBID source: FORM-1367329726
, Montini, Lara, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2013 >>
Author(s): Montini, Lara, Rieser-Schüssler, Nadine, Axhausen, Kay W.
Title: Handling GPS Signal Loss using Accelerometer Data
Abstract: In transportation research, GPS tracks are used amongst other data sources to reconstruct travel diaries. One major goal of automatically reconstructing these diaries instead of using traditional paper- and-pen travel diaries is to reduce the burden of respondents. This also allows to survey longer periods, and, consequently, changes in travel behaviour could be observed. Typically, routines to create diaries rely mostly on GPS data. But to collect GPS data devices have to be outside, where the satellite signal can be received. However, some important travel episodes can occur where this is not possible and in these situations other sensors can be used. The goal of the proposed paper is to cover the gaps in GPS data tracks using accelerometer data. In the context of transportation, most common reasons for losing the signal are metro stages, long tunnels and vehicles that substantially decrease or even prevent GPS reception such as, in our experience, trains. Accelerometer data on the other hand can consistently be collected, also underground. Furthermore, accelerometers are available in nearly all modern smartphones and in some dedicated GPS devices. Therefore, the processing routines originally developed for GPS only, are adapted to use this additional data source. Our processing framework consists of four main steps: (1) cleaning and smoothing of GPS data, (2) rule-based detection of activities and stages, (3) identification of the transport mode using a fuzzy rule system, and, (4) map-matching to determine routes. Two parts, the activity and stages detection as well as the mode identification, are extended to use the information provided by the accelerometer. If no GPS signal is available, the activity and stage detection based on accelerometer data will be triggered, then, results of both algorithms have to be merged into a consistent diary. For the mode identification, a second classifier, using only characteristics derived from the accelerometer, is implemented for stages without or with very few GPS points. For validation of the new methods two data sets will be used. First, data from a one-week GPS-based survey in Zurich using a dedicated GPS device is available. This data was collected by approximately 150 people living in the area around Zurich with different educational backgrounds and of different age. The major disadvantage of this data set is that Zurich has no metro lines. GPS signal loss occurred mainly while participants were travelling by train or through tunnels. Therefore, a second data set collected in Vienna will also be used for validation. Data from Vienna will be collected by approximately 15 people using smartphones and dedicated GPS devices simultaneously.2
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: Mobile Ghent '13
Event date: October 23-25, 2013
Place: Ghent, Belgium
Language: English
DBID source: FORM-1376921000, FORM-1415109624
, Lu, Ming, Axhausen, Kay W., Li, Junlong, 2013 >>
Author(s): Lu, Ming, Axhausen, Kay W., Li, Junlong
Title: First Results of Simulating Traffic Behaviour Using Distributed Adaptive Control
Abstract: In this paper Distributed Adaptive Control (DAC) theory is used to simulate basic traffic behaviours such as car following, lane changing, overtaking, etc. A single link with a pre-set traffic density is simulated. In the system each car is a dependent unit to other cars, which applies an independent DAC algorithm. The car interacts with adjacent environment while driving on the road and adapts its behaviour according to front cars' behaviour to make decisions whether accelerating, decelerating or changing lanes. The DAC integrated in each car is actually an unsupervised learning algorithm modified from Hebbian learning. So these cars not only learn how to drive in the system, but also forget a small amount of their previous experiences to adapt themselves to the dynamic environment. Compare to the other micro simulating softwares, the big advantage of this model is that each car is an intelligent unit that can learn and forget to adapt itself to the real situations instead of applying certain pre-defined rules. The simulating result is compared to a similar scenario in VISSIM as well as real data, and the result looks promising.
Publication date / Date received: 2013-01-01
Publication status: Ascona
Publication status: Published
Subjects: Trac behaviour simulation, Distributed adaptive control, Lane changing, Car following
Event name: 13th Swiss Transport Research Conference (STRC 2013)
Event date: April 24-26, 2013
Place: Ascona, Switzerland
Language: English
Keyword: Trac behaviour simulation, Distributed adaptive control, Lane changing, Car following
DBID source: FORM-1367322189
, Lapparent, Matthieu de, Axhausen, Kay W., Frei, Andreas, 2013 >>
Author(s): Lapparent, Matthieu de, Axhausen, Kay W., Frei, Andreas
Title: Long distance mode choice and distributions of values of travel time savings in three European countries
Abstract: he study presented in this paper uses Stated Preferences (SP) data on mode choice collected as part of a recent survey on long distance travel undertaken in three European countries. The purpose of this article is twofold. It aims at exploring the impacts of the choice of mixing probability distributions while accounting for unobserved taste heterogeneity and it aims at focusing on the derived estimation of the distributions of values of travel time savings (VTTS). We compare eleven distributions, each having particular properties in terms of domain, location, scale, and shape. Due to the repetitive nature of the SP experiments, we estimate mixtures of Multinomial Logit (MNL) models for panel data. The results show that the mixing distributions differ from one country to another, suggesting existence of European disparities as it regards long-distance mode choice. The results also show that long-distance travellers pay a lot more attention to access and egress travel times to and from the main mode than to total travel time with the main mode.
Published in: Europa Verkehr
Issue: 53
Pages: 1 - 31
Publication date / Date received: 2013-01-01
Publication status: Darmstadt, Germany
Publication status: Published
Language: English
DBID source: FORM-1359114753
Nebis system number: 000012640
, Kritzinger, Stephan, Rikus, Simon, Auf der Maur, Alex, Schad, Helmut, Lutzenberger, Martin, Axhausen, Kay W., Weis, Claude, 2013 >>
Author(s): Kritzinger, Stephan, Rikus, Simon, Auf der Maur, Alex, Schad, Helmut, Lutzenberger, Martin, Axhausen, Kay W., Weis, Claude
Title: Messen des Nutzens von Massnahmen mit Auswirkungen auf den Langsamverkehr: Vorstudie
Abstract: Im Rahmen des Forschungsvorhabens wird ein "Mehr-Methoden-Ansatz" verfolgt. Mit einer vertieften Literaturanalyse wird der aktuelle Erkenntnis- und Forschungsstand zur Nutzenmessung im Langsamverkehr erfasst und ausgewertet. Zu dem theoretischen Teil gehört auch eine Auswertung der vorhandenen Nachfragedaten zum Langsamverkehr einschliesslich der generalisierten Kosten aus dem Datensatz des Mikrozensus und den sog. Plakanda-Daten. Der empirische Teil des Forschungsvorhabens umfasst neben Interviews von Praktikern zu den verkehrlichen und nicht-verkehrlichen Wirkungen von Massnahmen des Langsamverkehrs auch eine stated ranking (SR) und eine stated choice (SC) Befragung. Diese werden weitgehend flächendeckend für die Schweiz durchgeführt. Zusätzlich sind bis zu drei Fallanalysen von bereits realisierten LV-Infrastrukturmassnahmen mit ergänzenden projektbezogenen Befragungen vorgesehen. Die Erhebungen und Befragungen zielen auf die verkehrlichen Wirkungen, die generalisierten Kosten und die Nutzen ab. Mit der Einbeziehung von Praxispartnern soll der Anspruch eingelöst werden, umsetzungsreife Vorschläge zu erarbeiten. Auf der Grundlage der so gewonnenen Erkenntnisse werden verallgemeinerbare Aussagen zu Modellparametern (Verkehrsnachfrage und Generalisierte Kosten) und Nutzenkategorien mit Quantifizierung und Monetarisierung getroffen. Die Schlussfolgerungen und Empfehlungen aus dem theoretischen und empirischen Teil rchten sich an wissenschaftlich arbeitende Leser wie auch an Praktiker in Städten und Agglomerationen. Sie umfassen alle Aspekte der Mengenerfassung, Modellierung, Nutzenmessung und Bewertung des Langsamverkehrs in der Schweiz.
Published in: Schlussbericht SVI 2010/004
Volume: 1442
Publication date / Date received: 2013-01-01
Publication status: Bern
Publication status: Published
Language: German
DBID source: FORM-1394799498
, Kowald, Matthias, Berg, Pauline van den, Frei, Andreas, Carrasco, Juan-Antonio, Arentze, Theo, Axhausen, Kay W., Mok, Diana, Timmermans, Harry, Wellman, Barry, 2013 >>
Author(s): Kowald, Matthias, Berg, Pauline van den, Frei, Andreas, Carrasco, Juan-Antonio, Arentze, Theo, Axhausen, Kay W., Mok, Diana, Timmermans, Harry, Wellman, Barry
Title: Distance patterns of personal networks in four countries
Subtitle: A comparative study
Abstract: Acknowledging the relevance of social networks on (social) travel behaviour, the objective of this paper is to study comparatively the distance patterns between the home locations of social contacts. Analyses are based on five recent personal network data collections from four countries: Canada, Switzerland, the Netherlands, and Chile. Multilevel models, which explicitly account for the hierarchical structure of the data sets, are used to study the role of the explanatory variables to understand the distance patterns of social contacts. Modelling results suggest that alters' characteristics (such as type of relationship, emotional closeness, and duration of the relationship) as well as personal network composition (alters with a certain relationship with the ego) constitute stronger predictors than ego's socio-demographics across the countries. In addition, the comparative analyses suggest differences between countries on relevant key variables such as ego's income and the ego-alter tie strength.
Published in: Journal of transport geography
Volume: 31
Pages: 236 - 248
ISSN: 0966-6923, 1873-1236
Publication date / Date received: 2013-01-01
Publication status: Oxford
Publication status: Published
Subjects: Social networks, Distance between social contacts, Comparative studies, Social activity, Travel behaviour, Data collection
Language: English
Keyword: Social networks, Distance between social contacts, Comparative studies, Social activity, Travel behaviour, Data collection
DBID source: FORM-1371750244, WOS-000324973500028
DOI: 10.1016/j.jtrangeo.2013.06.006
Nebis system number: 000887716
, Kopp, Johanna, Gerike, Regine, Axhausen, Kay W., 2013 >>
Author(s): Kopp, Johanna, Gerike, Regine, Axhausen, Kay W.
Title: Status Quo and Perspectives for CarSharing Systems
Subtitle: The Example of DriveNow
Book title: Strategies for sustainable mobilities : opportunities and challenges
Published in: Transport and Society
Pages: 207 - 226
ISBN: 978-1-4094-5489-2, 1-4094-5489-4, 978-1-4094-5490-8, 1-4094-5490-8, 978-1-4724-0410-7, 1-4724-0410-6
Publication date / Date received: 2013-01-01
Publication status: Burlington, VT
Publication status: Published
Language: English
DBID source: FORM-1385371833
Nebis system number: 009784989
, Killer, Veronika, Fuhrer, Raphael, Guth, Dennis, Holz-Rau, Christian, Axhausen, Kay W., 2013 >>
Author(s): Killer, Veronika, Fuhrer, Raphael, Guth, Dennis, Holz-Rau, Christian, Axhausen, Kay W.
Title: Road accessibility of Germany and Switzerland 1970-2007
Abstract: This study adopts the basic potential approach of accessibility and investigates it at the municipal level of resolution over a long time period for Germany and Switzerland. The availability of his-torical data shaped the scope, geographical bounds and historical timeline of this study. Generat-ing a historically and regionally comparable data set turned out to be a challenge. The accessibil-ity combines the quality of the transport network and the importance or attractiveness of the lo-cations. This accessibility is calculated as a weighted sum of all opportunities reachable from a municipality. Regionally and nationally diverse patterns of accessibility change were detected. The values tended to increase over the years. The accessibility changes most along the important transport corridors and around the major cities in Germany and Switzerland between 1970 and 2007. Accessibility makes the increasing spatial interaction visible, but also shows the areas of concern. The decrease in spatial impedance encourages these patterns.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 936
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Accessibility, Historical data, Germany, Switzerland
Language: English
Keyword: Accessibility, Historical data, Germany, Switzerland
ETH dissertation number: 22 p.
DBID source: FORM-1378457436
, Killer, Veronika, Axhausen, Kay W., 2013 >>
Author(s): Killer, Veronika, Axhausen, Kay W.
Title: Similarities in residential choice models
Abstract: 2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 827
Publication date / Date received: 2013-01-01
Publication status: Zurich
Publication status: Unpublished
Language: English
DBID source: FORM-1347371733
, Jäggi, Boris, Weis, Claude, Axhausen, Kay W., 2013 >>
Author(s): Jäggi, Boris, Weis, Claude, Axhausen, Kay W.
Title: Stated response and multiple discrete-continuous choice models
Subtitle: Analyses of residuals
Abstract: In sophisticated transport models, choice modelling is used to capture a wide range of behaviour, such as mode choice, vehicle choice and route choice. A newly developed approach to improving realism is the multiple discrete-continuous extreme value (MDCEV) model, which allows researchers to model the allocation of continuous amounts of a consumer good. Before implementing this model in overall frameworks, it is important to determine the accuracy of the forecasting. In this paper, an MDCEV model of household fleet choice based on data collected in a stated adaptation survey is presented. The model was used to predict the annual mileage of households with regard to 17 different types of cars, and the results of that forecast were compared to the actual data by calculating the residuals. The residual analysis showed that the model performed significantly better than a completely random model, but the share of wrongly allocated mileage, 70% of the total, remained high. However, the results of only one model were not sufficient to assess the procedure. The differences between two submodels, one with and one without public transport, regarding the distribution of the residuals indicated that model specification has a significant influence on performance. Therefore, more work on forecasting additional MDCEV models was necessary to have a basis for comparison. We compared two further MDCEV models to obtain a fuller understanding of their performance.
Published in: Journal of choice modelling
Volume: 6
Pages: 44 - 59
ISSN: 1755-5345
Publication date / Date received: 2013-01-01
Publication status: Leeds
Publication status: Published
Subjects: Stated preference, Household fleet choice, MDCEV, Forecast, Residual, Validation
Language: English
Keyword: Stated preference, Household fleet choice, MDCEV, Forecast, Residual, Validation
DBID source: FORM-1304781010
DOI: 10.1016/j.jocm.2013.04.005,
, Jäggi, Boris, Robinson, Darren, Axhausen, Kay W., 2013 >>
Author(s): Jäggi, Boris, Robinson, Darren, Axhausen, Kay W.
Title: 2000W City: Urban Metabolism
Abstract: Half of the global population lives in urban areas and this is forecast to increase to three quarters by 2050. Due to profligate use of energy and unsustainable management of resources, urban settlements are responsible for the majority of adverse anthropogenic environmental consequences, such as greenhouse gas emissions and raw material depletion. It is important that we better understand this urban metabolism, its consequences and ways in which it can be optimised to minimise these consequences. As the problems of urban metabolism are complex and intertwined, (computer) modelling is indispensable to address this complexity in a rigorous way and thus to provide a sound knowledge basis to tackle them. In this spirit we propose to develop a detailed spatially explicit model of the dynamic exchanges of energy and matter within a city due to transportation, the operation of buildings and the activities accommodated by them. More specifically this will involve the further development and subsequent integration of LESO-SUNtool and MATSIM. The successor of SUNtool, LESO-SUNtool is the most fully developed model available for the explicit simulation of building-related energy, water and waste flows in urban settlements. In complement to this, MATSIM is a detailed transport microsimulation model - simulating each individual vehicular transport journey, following from initial route optimisation runs for each agent-traveller, at fine temporal resolution. Combining these tools will produce a platform with which all key urban physical resource flows (energy and matter) can be simulated. Once integrated, calibrated and validated, this new simulation platform will be applied to the city of Zürich to produce specific new guidance (incl. regulations, planning decisions, subsidies, education programmes etc.) for its development during the next fifty years, with a view to achieving a 2000W/capita city.
Published in: Travel Survey Metadata Series
Volume: 44
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Urban Metabolism, 2000W, Switzerland
Language: English
Keyword: Urban Metabolism, 2000W, Switzerland
DBID source: FORM-1371754749
, Jäggi, Boris, Dobler, Christoph, Axhausen, Kay W., 2013 >>
Author(s): Jäggi, Boris, Dobler, Christoph, Axhausen, Kay W.
Title: Schlussbericht ASTRA 2010/020 Werkzeug zur aktuellen Gangliniennorm
Abstract: Dieser Bericht enthält die Beschreibung und Erklärung eines Excel-Programms, das als Hilfs- mittel zur Norm SN 640 005b erstellt wurde. Mit diesem Hilfsmittel kann aus einer Messreihe die zugehörige Wochenganglinie schnell ermittelt werden. Im vorliegenden Bericht wird das Funktionsprinzip an Hand der einzelnen Tabellenblätter des Excel-Programms erläutert. Es gibt zwei Tabellenblätter auf welchen die Messwerte eingegeben werden können und eines auf dem die Resultate angezeigt werden. Zusätzlich gibt es weitere Tabellenblätter auf welchen die Berechnungen durchgeführt und die Parameter gespeichert sind, die für die Benützenden keine Relevanz haben. Im zweiten Teil des Berichts ist eine Beispielanwendung für den Benützenden gegeben.
Published in: Schriftenreihe
Volume: 1412
Publication date / Date received: 2013-01-01
Publication status: Published
Language: German
DBID source: FORM-1366373899
, Horni, Andreas, Montini, Lara, Waraich, Rashid A., Axhausen, Kay W., 2013 >>
Author(s): Horni, Andreas, Montini, Lara, Waraich, Rashid A., Axhausen, Kay W.
Title: An Agent-Based Cellular Automaton Cruising-For-Parking Simulation
Abstract: This paper reports on the development of an agent-based cruising-for-parking simulation using the cellular automaton (CA) approach. The software was tested on a small-scale scenario, and a first verification step was performed for a real-world scenario for the town center of Zürich. Approaches to integrating the simulation into MATSim, a multi-agent transport simulation program, are discussed. The software is open source and can be downloaded from a free software repository. Empirical data that may be valuable for future model calibration are currently being surveyed in a global positioning system (GPS) study at the authors' institute.
Published in: Transportation letters
Volume: 5
Issue: 4
Pages: 167 - 175
ISSN: 1942-7875, 1942-7867
Publication date / Date received: 2013-01-01
Publication status: Plantation, FL; Leeds
Publication status: Published
Subjects: Cellular automaton, Parking search microsimulation
Language: English
Keyword: Cellular automaton, Parking search microsimulation
DBID source: FORM-1376910274, WOS-000328366400002
DOI: 10.1179/1942787513Y.0000000004
, Harding, Chris, Patterson, Zachary, Axhausen, Kay W., 2013 >>
Author(s): Harding, Chris, Patterson, Zachary, Axhausen, Kay W.
Title: Trip dispersal, efficient chaining and modal propensity
Subtitle: An analysis of the effects of neighborhood type, regional accessibility and activity space geometry on travel behaviour in Switzerland
Abstract: Using the 2010 Swiss Microcensus, the effect of neighborhood and regional-level urban form variables on travel dispersal is explored by way of activity spaces. Origin-destination data on 60,000 residents living in metropolitan areas of varying size, density and population enables us to distinguish the respective roles played by local and regional variations in land use. This is carried out using ordinary least squares and simultaneous equation model regression analysis, with the area of the activity space as dependent variable. The relationship between activity space geometry and mode choice is also explored to better understand which geometries are most conducive to environmentally benign forms of travel (active and transit modes) and what development conditions enable such patterns to emerge. Finally, as tour complexity, trip dispersal and mode choice are intimately related, we use the Microcensus to explore what access modes and which types of environments lead to better chaining of environmentally benign modes in complex tours.
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 901
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Trip dispersal, Neighborhood and regional land use-travel demand linkages, Effective chaining, Modal propensity, MPSD
Language: English
Keyword: Trip dispersal, Neighborhood and regional land use-travel demand linkages, Effective chaining, Modal propensity, MPSD
DBID source: FORM-1374488255
, Harding, Chris, Patterson, Zachary, Axhausen, Kay W., 2013 >>
Author(s): Harding, Chris, Patterson, Zachary, Axhausen, Kay W.
Title: Neighborhood and regional effects on trip dispersal
Subtitle: A case study using data from the 9 largest metropolitan regions in Switzerland
Abstract: Using the 2010 Swiss Microcensus, the effect of neighborhood and regional-level urban form variables on travel dispersal is explored by way of activity spaces, origin-destination data on 60,000 residents living in metropolitan areas of varying size, density and population enabling us to distinguish the respective roles played by local and regional variations in land use. This is carried out using ordinary least squares (OLS) and simultaneous equation model (SEM) regression analysis, with the area of the activity space as dependent variable. Our results indicate that neighborhood type has a large effect on the overall dispersal of travel by residents, whereas regional effects, found elsewhere to be very large, were found to be quite small. Distance from the core, for residents of inner-urban areas, also has a significant impact on dispersal; after approximately 8 km however, this effect is no longer significant. Very few of the other regional land use variables tested were found to be significant predictors of dispersal; only proportion population within the inner metro area, employment center access and metropolitan area shape were found to affect dispersal in a statistically significant way. Metropolitan area and population, which were hypothesized to have a significant impact on dispersal, were not found to be significant predictors when estimated using multiple regression. Finally, the hypothesis of endogeneity in explanatory variables was investigated and rejected. These results indicate that policies aimed at developing dense and mixed urban settlements carry with them the beneficial effect of reducing travel dispersal, even if not built within blocks of the central business district.
Published in: Working paper
Volume: 80
Publication date / Date received: 2013-01-01
Publication status: Montreal
Publication status: Published
Subjects: Activity space, Neighborhood type, Metropolitan determinants, Simultaneous equation model, Urban form
Language: English
Keyword: Activity space, Neighborhood type, Metropolitan determinants, Simultaneous equation model, Urban form
DBID source: FORM-1376917911
, Habib, Khandker Nurul, Sasic, Ana, Weis, Claude, Axhausen, Kay W., 2013 >>
Author(s): Habib, Khandker Nurul, Sasic, Ana, Weis, Claude, Axhausen, Kay W.
Title: Investigating the nonlinear relationship between transportation system performance and daily activity–travel scheduling behaviour
Abstract: The paper presents an econometric investigation of the behavioural relationship between transportation system performance in terms of travel time changes and daily activity–travel scheduling processes. Innovative survey data on the complete daily activity-scheduling adaptation process is used jointly with revealed scheduling information. The survey, conducted in Zurich, Switzerland, collected daily scheduling information together with stated adaptation responses corresponding to four adaptation scenarios. The four scenarios are defined by applying hypothetical increases in travel time of 50%, 100%, and 200% and a 50% decrease in travel time. Stated adaptation responses are collected in the context of 24-h activity scheduling. Data are used to estimate RUM based daily travel activity scheduling models. Models are estimated for one revealed schedule and four stated scheduling datasets. In addition, a joint model is estimated for pooled revealed and stated scheduling data. In the joint model, separate scale/variance parameters are estimated for revealed and stated information. Results clearly identify the nonlinear responses of activity–travel scheduling to the changes in travel time. Asymmetric responses are shown for travel time increases and decreases. People become more conservative with time expenditures when scheduling activities subject to increased travel times. However, beyond a certain limit of travel time increase, scheduling behaviour becomes more unpredictable. The lessons learned from this investigation have implications in the application of activity-based models for forecasting and policy analyses. Models developed using only a revealed preference dataset should not be used to extrapolate to situations where travel times changes by large margins. The results also prove that significant improvements in capturing behavioural responses in the activity scheduling process are possible by pooling revealed preference and stated preference data sets and jointly modelling with an explicit representation of RP scale/variance differences.
Published in: Transportation research. Part A, General
Volume: 49
Pages: 342 - 357
ISSN: 0191-2607
Publication date / Date received: 2013-01-01
Publication status: New York
Publication status: Published
Subjects: Activity-based model, RUM based choice model, Discrete-continuous model, Joint SP–RP model, Activity scheduling
Language: English
Keyword: Activity-based model, RUM based choice model, Discrete-continuous model, Joint SP–RP model, Activity scheduling
DBID source: FORM-1314268774, WOS-000317441400026
DOI: 10.1016/j.tra.2013.01.016
Nebis system number: 004231702
, Fuhrer, Raphael, Killer, Veronika, Hunziker, Philipp, Axhausen, Kay W., 2013 >>
Author(s): Fuhrer, Raphael, Killer, Veronika, Hunziker, Philipp, Axhausen, Kay W.
Title: Modelling Variation in Transport Infrastructure, Travel Time and Accessibility over Time and Space
Abstract: This paper presents three related projects in accessibility research at ETH Zürich. First, changes in accessibility in Switzerland between 1850 and 2000. Interrelations between changes in travel behaviour, urban sprawl, wealth and labour distribution, and investments in faster transport networks are examined using the concept of accessibility. Second, accessibility changes of Switzerland and Germany are compared, also in terms of methodological differences of bi-national data sets. Estimations of historical impedance factors show a decrease towards recent years, indicating more frequent, longer and cheaper commuting trips in both countries. Overall accessibility has increased in the whole study area, stronger in Western Germany than in Eastern Germany than in Switzerland. Third, an on-going project dealing on the one hand with global transport infrastructure of 1950 and today and on the other hand with Western European transport from 1500 to 2000. In this context, an automated vectorisation program for generating GIS data from historical transport paper maps is presented in detail. Concepts of accessibility and state reach are introduced.
Publication date / Date received: 2013-01-01
Publication status: Published
Subjects: Accessibility, Transport history, Switzerland, Germany, Transport networks, State reach, AMS
Event name: 11th Annual T2M Conference "Transport and Borders" (T2M 2013)
Event date: September 25-28, 2013
Place: Kouvola, Finland and St. Petersburg, Russia
Language: English
Keyword: Accessibility, Transport history, Switzerland, Germany, Transport networks, State reach, AMS
DBID source: FORM-1376924313
, Fröhlich, Phillip, Weis, Claude, Erath, Alexander, Vrtic, Milenko, Axhausen, Kay W., 2013 >>
Author(s): Fröhlich, Phillip, Weis, Claude, Erath, Alexander, Vrtic, Milenko, Axhausen, Kay W.
Title: SP-Befragung 2010 zum Verkehrsverhalten im Personenverkehr
Abstract: Stated Preference (SP) Befragungen werden in der Schweiz seit rund 10 Jahren zur Schätzung diskreter Entscheidungsmodelle zur Verkehrsmittel- und Routenwahl eingesetzt. Dabei waren oft spezielle Untersuchungszwecke massgebend, wie z.B. die Einführung der ICN-Züge oder die Prüfung des Mobility Pricings, die alle Fahrten mit langen Fahrtweiten untersuchten. SP- Befragungen sind insbesondere dann erfolgversprechend, wenn sie auf real berichteten Wegen basieren (sogenannte Revealed Preference (RP) Daten). In der Schweiz wird das Verkehrsverhalten von der SBB mit der kontinuierlichen Erhebung Personenverkehr (KEP), laufend für Wege > 3 km erfasst. Mangels anderer Datenquellen wurden alle bisherigen SP- Erhebungen auf Grundlage der KEP-Daten aufgebaut, was, neben den speziellen Untersuchungszwecken, die bisherige Vernachlässigung der kürzeren Wege in den SP- Erhebungen erklärt. SP-Daten haben den Vorteil, unter "Laborbedingungen", als Experiment, erhoben zu werden. Dabei werden den Befragten hypothetische Situationen vorgelegt. Damit ist eine grÖssere Variation in den Ausprägungen der Angebotsvariablen mÖglich. Im Versuchsplan kÖnnen sowohl der Wertebereich der Attribute als auch die interessanten Wechselwirkungen zwischen den Attributen festgelegt werden. RP-Daten hingegen werden durch Beobachtung oder Befragung von Entscheidungen unter realen Bedingungen (aktuelle Marktbedingungen) gewonnen. Somit ist die Variation der Angebotsdaten oft zu gering und eine starke Korrelation zwischen einzelnen Variablen meist unvermeidlich. Ein Vorteil der RP-Daten ist die Erhebung realer Entscheidungen mit den umweltseitigen und technologischen Beschränkungen und individuellen Sachzwängen (z.B. Ein-kommen) der Befragten. Die Bundesämter für Raumentwicklung und Statistik führen im 5-Jahres-Rhythmus den Mik- rozensus Verkehr durch, der sowohl bezüglich der Wegcharakteristiken als auch der Perso- nenstichprobe repräsentativ für die Schweiz ist. Erstmals ergibt sich nun die MÖglichkeit, mit der Unterstützung einer Vielzahl von Kantonen die Mikrozensus-Erhebung mit einer SP- Befragung zu kombinieren. Diese soll Daten für das Verkehrsmittelwahl- und Routenwahlverhalten erheben und für die Weiterentwicklung des Nationalen Personenverkehrsmodells (NPVM) sowie für die Erstellung und Erweiterung kantonaler Verkehrsmodelle genutzt werden. Die Zielsetzung des Projekts ist, eine SP-Erhebung zu konzipieren und durchzuführen, welche bezüglich der Wegecharakteristiken (Modi, Zweck und Länge) und der räumlichen und soziodemographischen Merkmale der Befragten, die Stichprobe des Mikrozensus repräsentativ widerspiegelt. Beim Erhebungsdesign ist auf die Anforderungen bezüglich: - Preiselastizität und nicht-lineare Einflüsse - Parkplatzsituation - Einkommen - Auslastung im ÖV und MIV entsprechend Rücksicht zu nehmen. Das Erhebungskonzept und die erstellten SP-Experimente sowie die daraus erhobenen Daten sollten zusammen mit den Mikrozensusdaten die Anforderungen an zukünftige Modellstrukturen erfüllen und die entsprechende Schätzung von Modellparametern ermÖglichen. Mit diesen Daten ist die Schätzung der Routenwahlmodelle (MIV und ÖV) und Verkehrsmittelwahlmodelle gesichert.
Published in: Travel Survey Metadata Series
Volume: 48
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Verkehrsverhalten, Stated Preference
Language: German
Keyword: Verkehrsverhalten, Stated Preference
DBID source: FORM-1386683234
, Erath, Alexander L., Chakirov, Artem, Eggermond, Michael A.B. van, Fourie, Pieter J., Ordóñez Medina, Sergio A., Sun, Lijun, Axhausen, Kay W., 2013 >>
Author(s): Erath, Alexander L., Chakirov, Artem, Eggermond, Michael A.B. van, Fourie, Pieter J., Ordóñez Medina, Sergio A., Sun, Lijun, Axhausen, Kay W.
Title: Presentation for LTA steering committee
Abstract: 2
Publication date / Date received: 2013-01-01
Event name: LTA – FCL Steering committee – Meeting 5
Event date: May 2013
Place: Singapore
Language: English
DBID source: FORM-1446796911
, Erath, Alexander, Axhausen, Kay W., 2013 >>
Author(s): Erath, Alexander, Axhausen, Kay W.
Title: Long term fuel price elasticity
Subtitle: Effect of price changes on mobility tool ownership
Abstract: The study analyzes how mobility tool usage and ownership as well as residence location choice are affected by rising fuel costs. Based on econometric models, long-term fuel price elasticities are derived. Based on data collected in stated choice and stated adaptation experiments that were conducted as computer-based face-to-face surveys, a structural equation model was estimated. The resulting fuel price elasticities are primarily dependent on fuel type and fuel price level, but sociodemographic variables, such as income, also have significant effects on elasticity. The price elasticity of gasoline for a prices of 1.5 CHF/l and 5 CH/l ranges between -0.31 and -0.60. For diesel and natural gas, the elasticities range between 0.32 and -0.67 and 2.74 and -0.93 whereas the positive elasticity values are caused by substitution effects. The mainly observed demand reactions given higher fuel prices are the reduction of mileage and the consideration of smaller engine and diesel cars. As natural gas and electric engined cars were hardly considered in the survey, the results of the natural gas model can only serve as trend whereas no stable model could be estimated for the demand and usage of electric cars. Although the results presented herein are based on the for this topic novel stated adaption approach, the results are comparable to other studies, namely to the recent time series based fuel price elasticity study of Baranzini et al. (2009). They report a long term price elasticity of -0.27 for all fuels and -0.34 for gasoline. In terms of a possible impact of fuel prices on residence location choice, the results suggest a high aversion to moving away from the current type of residence location. The willingness to pay more before moving to a more central location that has lower mobility costs is dependent on income and the spatial types of both the old and envisaged residence location. For an average income, mobility costs range between 463 CHF/month in the case of a residence location change from an agglomeration to an urban area and 2040 CHF/month when moving from a rural area to the city center. In addition, differences in the valuations of housing, car and public transport costs are identified, in which car costs are generally the least negatively valued. SP1: Effect of price changes on mobility tool ownership The first of three stated preference experiments is designed as a stated adaption experiment. Given today's residence, but a new price regime of mobility costs, the respondent has to indicate the respective choice and usage of mobility tools for all household members. Each respondent is confronted with six such situations, which are predefined by the experiment plan. The experiment plan is constructed by orthogonal design and combines three variables with different levels. For each situation, only one incentive type is considered.
Published in: Travel Survey Metadata Series
Volume: 50
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Stated Preference, Fuel price, Mobility tool ownership
Language: English
Keyword: Stated Preference, Fuel price, Mobility tool ownership
DBID source: FORM-1386683723
, Dubernet, Thibaut, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2013 >>
Author(s): Dubernet, Thibaut, Rieser-Schüssler, Nadine, Axhausen, Kay W.
Title: Using a multi-agent simulation tool to estimate the car-pooling potential
Abstract: It is a general trend in transportation planning to try to reduce the use of car driven by a single person. This can be achieved by different means: more efficient public transport, increase in the usage of individual non-motorised vehicles, or sharing of a vehicle for all or a fraction of a trip. This paper focuses on evaluating the potential of the latter. The factors influencing the potential of such a mode are manifold: behavioral, structural (number of potential matches), organisational (quality of available services to meet co-travelers). . . In previous studies, mainly the behavioral and organisational factors were analyzed. This paper focuses on the structural factor. To do so, the highly detailed daily plans generated by the multi-agent microsimulation software MATSim are searched for potential matches. Information about the potential matches is used to assess the feasibility of carpooling. In particular, it is shown that it is possible to group most of the car trips into two-person car-pools. The results of the analysis lead to the conclusion that there is no structural obstacle to carpooling development, and thus that the causes of the low share of this mode is to search in both the behavioral and organisational factors.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 799
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Event name: 92nd Annual Meeting of the Transportation Research Board
Event date: January 13-17, 2013
Place: Washington, DC, USA
Language: English
DBID source: FORM-1345197095
, Dubernet, Thibaut, Axhausen, Kay W., 2013 >>
Author(s): Dubernet, Thibaut, Axhausen, Kay W.
Title: Including joint decision mechanisms in a multiagent transport simulation
Abstract: In recent years, there has been a growing interest in the social dimension of travel, and how travel decisions are influenced not only by the global state of the transportation system, but also by joint decisions and interactions with social contacts. Empirical studies pointed out the relevance of certain types of social interactions to model travel behavior correctly: synchronization of household members has been identified as significantly influencing individual's travel decisions, and friendships were shown to influence the choice of leisure locations. Multiagent approaches, by representing decision making at the level of the individual, seem to be one of the most promising approaches to take into account such interactions when forecasting. The work presented here extends a state of the art multiagent simulation software, MATSim, with capabilities to capture joint decisions. It consists of a general framework to allow arbitrary joint behaviors to be represented, without constraints on the topology of the social network. An implementation of this framework for the important case of intrahousehold ride sharing is proposed, and demonstrated on a simple test scenario. The results show that the extended process is able to find the expected state, and is mature for validation against travel diary data.
Published in: Transportation letters
Volume: 5
Issue: 4
Pages: 175 - 183
ISSN: 1942-7867, 1942-7875
Publication date / Date received: 2013-01-01
Publication status: Plantation, FL
Publication status: Published
Subjects: Activity based, Car pooling, Households, Joint trips, MATSim, Microsimulation
Language: English
Keyword: Activity based, Car pooling, Households, Joint trips, MATSim, Microsimulation
DBID source: FORM-1382528095, WOS-000328366400003
DOI: 10.1179/1942787513Y.0000000002
, Dubernet, Thibaut, Axhausen, Kay W., 2013 >>
Author(s): Dubernet, Thibaut, Axhausen, Kay W.
Title: Implementing a Social Joint Activity-Travel Multi-agent Simulation Tool: Method and First Results for Intrahousehold Ride Sharing
Abstract: 2
Publication date / Date received: 2013-01-01
Publication status: Unpublished
Event name: Smart Cities, Complexity and Urban Networks. Satellite meeting of the European Conference on Complex Systems (ECCS 2013)
Event date: September 16-20, 2013
Place: Barcelona, Spain
Language: English
DBID source: FORM-1376323216
, Dubernet, Thibaut, Axhausen, Kay W., 2013 >>
Author(s): Dubernet, Thibaut, Axhausen, Kay W.
Title: Implementing a Social Joint Activity-Travel Multi-agent Simulation Tool: Method and First Results for Intrahousehold Ride Sharing
Abstract: 2
Publication date / Date received: 2013-01-01
Event name: Satellite Conference "Smart Cities, Complexity and Urban Networks" - ECCS '13
Event date: 18 September 2013
Place: Barcelona, Spain
Language: English
DBID source: FORM-1420899285
, Dubernet, Thibaut, Axhausen, Kay W., 2013 >>
Author(s): Dubernet, Thibaut, Axhausen, Kay W.
Title: First Results of an Household Joint Activity-Travel Multi-Agent Simulation Tool
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: Frontiers in Transportation – Social Interactions Workshop
Event date: July 31 - August 4, 2013
Place: Herrsching am Ammersee, Germany
Language: English
DBID source: FORM-1376322705
, Dubernet, Thibaut, Axhausen, Kay W., 2013 >>
Author(s): Dubernet, Thibaut, Axhausen, Kay W.
Title: A Framework to Represent Joint Decisions in a Multi-Agent Transport Simulation
Abstract: Mobility simulation softwares are tools which can be used for policy evaluation or to test behavioral assumptions. While a wide range of softwares are being developped, with a wide range of approaches and assumptions, most of them focus on the representation of individual decision making. Joint decision making, on the contrary, has received much less consideration, probably due to the difficulty to represent it accurately and efficiently, and the reasonable predictions that can already be produced whithout considering it. Joint decisions may however have an important influence on mobility behaviors: household members need to coordinate to use a limited number of vehicles; groups of friends need to negociate on a place to get dinner. In particular, it is hypothesised that location choice for leisure activities is strongly influenced by the possibility to meet social contacts at destination. Thus, representing accurately such processes may allow to fill the gap observed between predictions and observations in travel distance distribution for leisure trips. This paper presents an approach to simulate such joint decision processes using the MATSim multi-agent simulation framework. It uses two main components: an approach to generate joint plans, and an approach to correlate individual-level plan choice, knowing the constraints imposed by the joint plans. The approach is designed to be usable on arbitrary social network structures. The behavior on a simple test scenario for the social network of intra-household ties is presented.
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 13th Swiss Transport Research Conference (STRC 2013)
Event date: April 24-26, 2013
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1367317434
, Dobler, Christoph, Kowald, Matthias, Jäggi, Boris, Koot, Jolanda, Axhausen, Kay W., 2013 >>
Author(s): Dobler, Christoph, Kowald, Matthias, Jäggi, Boris, Koot, Jolanda, Axhausen, Kay W.
Title: Grossräumige Evakuierung – Agenten-basierte Analyse
Abstract: Das Ziel des in diesem Schlussbericht beschriebenen Projektes war die Simulation einer grossrÄumigen Evakuierung innerhalb der Schweiz. Als Ursache für die Evakuierung wurde ein Zwischenfall im KKW Gösgen gewÄhlt. Die Durchführung erfolgte in drei jeweils 12-monatigen Phasen. Als Teil des Projektes wurden in regelmÄssigen AbstÄnden Sitzungen mit Beteiligung der jeweils relevanten Anspruchsgruppen durchgeführt. Neben Vertretern des IVT sowie des BABS waren dies inbesondere Mitarbeiter des Eidgenössischen Nuklearsicherheitsinspektorats (ENSI) und der Nationalen Alarmzentrale (NAZ). Des weiteren waren Vertreter der Polizei, der Ämter für MilitÄr und Bevölkerungsschutz und der Kantonalen FührungsstÄbe der von einem Zwischenfall im KKW Gösgen betroffenen Anliegerkantone beteiligt.

Ziel der ersten Projektphase war es, die Evakuation einer Region um das KKW Gösgen unter optimalen Bedingungen zu simulieren. Die berechneten Evakuationszeiten stellen den Bestfall dar und sind in der RealitÄt nicht reproduzierbar, können jedoch als Indikator für die weitere Planung genutzt werden.

In den Projektphasen zwei und drei wurde der RealitÄtsgrad der Simulationen Schritt für Schritt erhöht, was durch Arbeit an verschiedenen Bereichen (Detailgrad der Mikrosimulation, Simulationsmodell, etc.) realisiert wurde. Hierfür wurden in einem ersten Schritt weitere Informationen zum untersuchten Szenario hinzugefügt. Anstelle einzelner, unabhÄngig agierender Personen beinhaltet das untersuchte Szenario nun Haushalte. Für jeden Haushalt wurden überdies die verfügbaren Fahrzeuge (Art und Größe) modelliert. Das Verkehrsnetz wurde mit Höhenkoordinaten versehen.

Grundlage der Verbesserung des Verhaltensmodells der betroffenenen Bevölkerung bildeten eine Literaturrecherche, Experteninterviews sowie eine Bevölkerungsumfrage. Basierend auf den erhaltenen Antworten der Umfrage wurden Modelle für die Entscheidungen 'Evakuieren?' und 'Mitnehmen fremder Personen im eigenen PW?' geschÄtzt.

Im dritten und letzten Schritt wurde der Funktionsumfang der genutzten Simulationsumgebung MATSim erweitert. Ein erste Erweiterung erlaubt es der simulierten Bevölkerung, auf unvorhergesehene Ereignisse zu reagieren. Die zweite Erweiterung erlaubt es, neben PW-Verkehr auch FussgÄnger und Fahrradfahrer physisch zu simulieren.
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 943
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Language: German
DBID source: FORM-1383724216
, Dobler, Christoph, Axhausen, Kay W., Weinmann, Siegfried, 2013 >>
Author(s): Dobler, Christoph, Axhausen, Kay W., Weinmann, Siegfried
Title: Transport Simulations
Subtitle: Knowledge Levels and System Outcomes
Abstract: How does knowledge about a traffic system influence the behavior of people and the state of the traffic system they are acting in? The individual perception of the current traffic situation exerts an essential influence on the decision-making of road users and— in return—their behavior effects the state of the traffic system. The key element of modeling traffic systems is to understand the impact of different personal knowledge levels regarding the local and global state of road traffic. To evaluate this relationship, models of different levels of knowledge are constructed and implemented with the simulation toolkit MATSim. Simulations based on a real world scenario show the relation between the mean travel time and the road user's amount of knowledge about the network structure as well as the amount of information about the loading of the links. A key result is that all drivers (statistically) benefit, even if only the half of them re-plan their routes according to current traffic information.2
Book title: Travel behaviour research : current foundations, future prospects
Pages: 299 - 319
ISBN: 9781304715173
Publication date / Date received: 2013-01-01
Publication status: S.l.
Publication status: Published
Event name: 13th International Conference on Travel Behaviour Research (IATBR 2012)
Event date: July 15-20, 2012
Place: Toronto, Ontario, Canada
Language: English
DBID source: FORM-1345711295
, Ciari, Francesco, Marmolejo, Alejandro, Stahel, Alexander, Axhausen, Kay W., 2013 >>
Author(s): Ciari, Francesco, Marmolejo, Alejandro, Stahel, Alexander, Axhausen, Kay W.
Title: Mobility patterns in Switzerland
Subtitle: Past, present and future
Abstract: This paper reports on an ongoing project which main goal is the setup of a scenario for the microsimulation model MATSim for the year 2030. Running the model on such scenario is expected to deliver a plausible prediction of transportation demand in Switzerland in that year. The work involves various challenges and can be broadly divided in two tasks. The first is the generation of a suitable synthetic population mimicking the real Swiss population in 2030. The second, which is the part described in this paper, is evaluating past mobility patterns, find out how they evolved until the present and figure out how they are expected to further evolve in the future. This has been done looking at Swiss travel diaries surveys from 1994 to 2010. The main finding of the research is that travel behavior did not change substantially in Switzerland in that span of time. In particular the number of out-of-home activities and home-to-home journeys for the same age groups across cohorts is fairly stable, although the time spent at activities is slightly decreasing. Some change has been observed also in license ownership and car ownership. Future mobility patterns have been delineated projecting the actual trend toward 2030. Additionally, two aspects which are supposed to play a major role in future mobility patterns – teleworking and teleshopping – were investigated.
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 13th Swiss Transport Research Conference (STRC 2013)
Event date: April 24-26, 2013
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1367317078
, Ciari, Francesco, Axhausen, Kay W., 2013 >>
Author(s): Ciari, Francesco, Axhausen, Kay W.
Title: Large-Scale Travel Data Sets and Route Choice Modeling
Subtitle: European Experience
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 92nd Annual Meeting of the Transportation Research Board. Workshop 189 "Route choice modeling and availability of data sets"
Event date: January 13-17, 2013
Place: Washington, DC, USA
Language: English
DBID source: FORM-1369754845
, Ciari, Francesco, Axhausen, Kay W., 2013 >>
Author(s): Ciari, Francesco, Axhausen, Kay W.
Title: Carsharing Stated Preference (SP)
Abstract: A recent study aimed to estimate the potential of carpooling in Switzerland. Part of this study was a survey in which the attitude of the public towards this transport option was investigated using both multi-response questions and stated preference (SP) experiments. In order to gain an insight on how innovative modes are perceived in general, the SP part was composed of two different experiments, one of them including carsharing as alternative. In the first experiment respondents were choosing among car, public transport, carpooling as driver and carpooling as passenger. In the second experiment respondents were choosing among car, public transport and carsharing. This paper reports on the multinomial logit choice models, which were estimated based on participants' responses. Both SP experiments were based on a trip reported by participants during a phone interview. For each experiment two specifications, a linear and a nonlinear one were estimated. The nonlinear specification allows investigating the impact of selected socio-demographic variables, in this case income and travel time, on the parameters of the models and on willingness to pay indicators. Such indicators permit to complement the qualitative discussion of the results with quantitative analyses and provide a useful background for policy evaluation and planning. Experiment 2: Carsharing In the second SP experiment the alternatives considered were car, public transport and carsharing. In this case all respondents received the same set of alternatives while the number of situations was limited to six. An issue which had to be tackled was the cost of carsharing travel. The norm in SP experiments with car and public transport as available modal options is to take into account the cost of the ticket for public transport travel and the cost of the gasoline for car travel. It is commonly accepted that gasoline cost is what car users perceive as the cost of a trip with that mode. The parking cost can be eventually added. In the case of carpooling this was appropriate, since carpooling implies the use of a private car. In the case of carsharing the usage fee covers other costs which are not usually taken into account in such experiments, nor generally by the driver a of a private car as cost of a particular trip; car insurance and amortization costs are the most important. For that reason, in the second SP experiment total kilometer costs were used. The kilometer cost was calculated using appropriate tables available on the web page of a Swiss automobile club (14). In order to have personalized costs, twelve different categories were considered according to the type of car (using price as proxy, with four levels) and to the yearly mileage (with three levels). Consumption, as in the previous exercise, was the one declared by the respondent. The cost for carsharing usage was calculated using the current prices of the Swiss operator Mobility (15). The carsharing car was, as far as possible, of the same or similar category as the respondent's own car. Mobility's fleet includes most, but not all car types. Another issue is how to take into account the duration related part of the carsharing fee. Carsharing users, in general, pay a fee, which is the sum of a distance dependent fee and a duration dependent fee. The latter depends on the rental time, which broadly corresponds to the duration of the round-trip tour; at least in the case of carsharing systems like Mobility which do not allow one-way rentals. Ideally, one would compare tours and not trips; however, since it was not possible to have the precise information needed for the whole tour, the experiment is based on a choice at the trip level. The ranges for the second experiment are reported in Table 2. They were chosen with the same criteria as for the first experiment.
Published in: Travel Survey Metadata Series
Volume: 47
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: CarSharing
Language: English
Keyword: CarSharing
DBID source: FORM-1372529492
, Ciari, Francesco, Axhausen, Kay W., 2013 >>
Author(s): Ciari, Francesco, Axhausen, Kay W.
Title: Carpooling in Switzerland
Subtitle: Public attitudes and growth strategies
Abstract: A recent study estimated the potential of carpooling in Switzerland. Part of this study was a survey in which the attitudes of the public towards this mode were investigated using both multi-response questions and a stated preference (SP) experiment. This paper reports on the results of the questionnaire. The first contribution of this paper is to give an insight on the reasons that motivate travellers to consider car-pooling as a possible alternative to driving alone with their own private car. Additionally, the questionnaire was the basis for factor and cluster analyses. Four different clusters of attitudes towards car pooling were identified among the population. This analysis is valuable to identify possible strategies to introduce carpooling at a larger scale in Switzerland. The results show that some parts of the population would be ready to embrace this mode of transport, in some cases even enthusiastically. This is true in particular for well educated, relatively affluent people. However, the responses suggest also that in order to exploit this potential, a system is necessary to address some of the typical issues related to carpooling. Safety is important but not the most important issue for potential participants. Practical aspects, like the guarantee of being able to go back home as a passenger if pools are arranged on a one-way basis, are those which worry respondents the most and, therefore, the most critical for carpooling success.
Book title: TRB 92nd Annual Meeting Compendium of Papers
Published in: Transportation Research Board Annual Meeting 2013 Paper
Issue: 13-2780
Publication date / Date received: 2013-01-01
Publication status: Washington, D.C.
Publication status: Published
Event name: 92nd Annual Meeting of the Transportation Research Board
Event date: January 13-17, 2013
Place: Washington, D.C.
Language: English
DBID source: FORM-1345712433
, Ciari, Francesco, Axhausen, Kay W., 2013 >>
Author(s): Ciari, Francesco, Axhausen, Kay W.
Title: Carpooling Stated Preference (SP)
Abstract: A recent study aimed to estimate the potential of carpooling in Switzerland. Part of this study was a survey in which the attitude of the public towards this transport option was investigated using both multi-response questions and stated preference (SP) experiments. In order to gain an insight on how innovative modes are perceived in general, the SP part was composed of two different experiments, one of them including carsharing as alternative. In the first experiment respondents were choosing among car, public transport, carpooling as driver and carpooling as passenger. In the second experiment respondents were choosing among car, public transport and carsharing. This paper reports on the multinomial logit choice models, which were estimated based on participants' responses. Both SP experiments were based on a trip reported by participants during a phone interview. For each experiment two specifications, a linear and a nonlinear one were estimated. The nonlinear specification allows investigating the impact of selected socio-demographic variables, in this case income and travel time, on the parameters of the models and on willingness to pay indicators. Such indicators permit to complement the qualitative discussion of the results with quantitative analyses and provide a useful background for policy evaluation and planning. Experiment 1: Carpooling In the first SP experiment four alternatives were considered: car, public transport, carpooling as driver and carpooling as passenger. Each respondent received eight situations and was invited to choose the preferred alternative. The respondent's burden of having to choose among four alternatives in each situation was a concern. For this reason respondents were randomly assigned to one of three groups, each of them corresponding to a combination of three of the four modes listed above. By limiting the burden on the respondents, this strategy keeps the response rate high. The large sample was supposed to guarantee the statistical significance of the results despite each alternative mode being evaluated in a smaller number of cases. The three combinations proposed were: - Car – Public Transport – Carpooling as driver - Car – Public Transport – Carpooling as passenger - Car – Carpooling as driver – Carpooling as passenger For carpooling it was assumed that gasoline cost would be simply split between driver and passenger (50% each). Travel distance was considered the same as for the mode car (and consequently the cost for gasoline) while travel time was increased by five minutes to take into account waiting times at the meeting point. Parking for the driver was as for the mode car. It was also considered that a few times per year driver and passenger would miss each other and thus need to reorganize the trip. The ranges of attributes for this experiment are shown in Table 1. Those ranges were chosen with the aim to be large enough in order to induce change in the behavior of respondents but still be realistic. No particular assumptions on future developments of prices or travel times were made.
Published in: Travel Survey Metadata Series
Volume: 46
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Language: English
DBID source: FORM-1372529297
, Charypar, David, Axhausen, Kay W., 2013 >>
Author(s): Charypar, David, Axhausen, Kay W.
Title: A Framework for Parallel Agent-Based Simulation in Physical Space
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 13th Swiss Transport Research Conference (STRC 2013)
Event date: April 24-26, 2013
Place: Ascona, Switzerland
Language: English
DBID source: FORM-1367316646
, Chakirov, Artem, Erath, Alexander, Axhausen, Kay W., 2013 >>
Author(s): Chakirov, Artem, Erath, Alexander, Axhausen, Kay W.
Title: Effects of congestion pricing and public transport prioritization in a multimodal context
Subtitle: Welfare analysis in an activity-based model
Pages: 109
Publication date / Date received: 2013-01-01
Publication status: Evanston
Publication status: Published
Event name: Annual Conference of the International Transportation Economics Association (Kuhnmo NECTAR 2013)
Event date: July 10-12, 2013
Place: Chicago, IL, USA
Language: English
DBID source: FORM-1383035657
, Chakirov, Artem, Erath, Alexander, Axhausen, Kay W., 2013 >>
Author(s): Chakirov, Artem, Erath, Alexander, Axhausen, Kay W.
Title: Effects of congestion pricing and public transport prioritization in a multimodal context
Subtitle: Welfare analysis in an activity-based model
Publication date / Date received: 2013-01-01
Publication status: Evanston, IL, USA
Publication status: Published
Event name: Annual Conference of the International Transportation Economics Association (Kuhnmo NECTAR 2013)
Event date: 10-12 July 2013
Place: Chicago, IL, USA
Language: English
DBID source: FORM-1383034149
, Bodenmann, Balz R., Vitins, Basil J., Vecchi, I., Zeiler, A., Hackney, Jeremy, Axhausen, Kay W., 2013 >>
Author(s): Bodenmann, Balz R., Vitins, Basil J., Vecchi, I., Zeiler, A., Hackney, Jeremy, Axhausen, Kay W.
Title: FaLC
Subtitle: Implementation of a Land-Use Transport Interaction Model for Switzerland
Abstract: FaLC (Facility Location Choice Simulation Tool) is an integrated microsimulation system for planning and analysis of urban development, incorporating interactions between land use, trans- portation, economy and public policy. The aim of FaLC is to develop a tool to answer different questions for scientific as well as for planning purposes. This blueprint gives partners and po- tential partners a rough outline of the basic elements of the project and, additionally, is a guide- line for the development team.
Publication date / Date received: 2013-01-01
Publication status: Published
Subjects: Land use model, Facility location choice, Simulation, RegioConcept, Herisau, IVT, ETH Zurich
Event name: 13th Swiss Transport Research Conference (STRC 2013)
Event date: April 24-26, 2013
Place: Ascona, Switzerland
Language: English
Keyword: Land use model, Facility location choice, Simulation, RegioConcept, Herisau, IVT, ETH Zurich
DBID source: FORM-1367315840
, Bodenmann, Balz R., Sanchez, B., Bode, Jeffrey W., Zeiler, A., Kuliowsky, M., Furtak, P., Axhausen, Kay W., 2013 >>
Author(s): Bodenmann, Balz R., Sanchez, B., Bode, Jeffrey W., Zeiler, A., Kuliowsky, M., Furtak, P., Axhausen, Kay W.
Title: FaLC Land-Use and Transport Interaction Model for Switzerland
Subtitle: First results
Abstract: FaLC (Facility Location Choice Simulation Tool) is an integrated transport and land use simulation tool developed in a joint project of the Institute for Transport Planning and Systems (IVT) at ETH Zurich and regioConcept. The idea of FaLC is to develop a tool to answer different questions for scientific as well as planning purposes. The modelling focus are effects of changing infrastructure supply, political decisions, and economic conditions on the spatial behaviour (location and relocation choices, transport flows) of persons (places of residence, work, leisure and shopping), firms (domicile, branches) and goods (freights, wholesale, retail, cash flow). This paper presents the first results of an implemented Case Study for Switzerland, the basic factors included in the modelled system, the behavioural patterns of the different agents and their interrelations.2
Book title: Proceedings of the 13th Swiss Transport Research Conference (STRC 2013)
Publication date / Date received: 2013-01-01
Publication status: Ascona
Publication status: Published
Subjects: Land use model, Facility location choice, Simulation, RegioCencept, Herisau, IVT, ETH Zurich
Event name: 13th Swiss Transport Research Conference (STRC 2013)
Event date: May 24-26, 2013
Place: Ascona, Switzerland
Language: English
Keyword: Land use model, Facility location choice, Simulation, RegioCencept, Herisau, IVT, ETH Zurich
DBID source: FORM-1400086676
, Beige, Sigrun, Axhausen, Kay W., 2013 >>
Author(s): Beige, Sigrun, Axhausen, Kay W.
Title: Univox 2005 - Besitz und Nutzung von Mobilitätsressourcen sowie Einstellungen zum Road Pricing in der Schweiz
Abstract: UNIVOX ist eine umfassende Langzeitbeobachtung unserer Gesellschaft, die das GfS- Forschungsinstitut in Zusammenarbeit mit rund 20 spezialisierten, zumeist universitären Instituten seit 1986 jährlich realisiert. Gesamtverantwortung und Koordination: GfS- Forschungsinstitut, Abteilung "Wirtschaftsforschung und Sozialmarketing". Univox 2005: Die Grundlage für die vorliegende Analyse bildet eine durch das Forschungsinstitut gfs-zürich zusammen mit insgesamt vier Kooperationspartnern im Februar 2005 durchgeführte Befragung. Die Befragung wurde nach der bei UNIVOX üblichen Befragungsanlage realisiert. Ein Interview dauerte im Schnitt 50 Minuten (zusammen mit anderen befragten Themenbereichen). Befragt wurden Stimmberechtigte, die mit Hilfe eines kombinierten Random-/ Quotaverfahrens ausgewählt wurden: Aufgrund der effektiven Verteilung wurden in einem ersten Schritt Deutsch- und Westschweiz sowie agglomerierte und ländliche Gegenden ausgeschieden. Innerhalb dieser Gebiete erfolgte die Ortsauswahl nach einem gewichteten Zufallsverfahren. Dabei wurden ca. 70 Gemeinden (sampling points) ausgewählt. In einem zweiten Schritt wurden innerhalb dieser Gemeinden die Zielpersonen für die Interviews nach dem Quotenverfahren bestimmt. Die Personenauswahl nahmen die BefragerInnen selbst vor. Sie hatten sich dabei bei jeweils 10 Interviews an Quoten für das Geschlecht, das Alter und den Beruf zu halten. Die so realisierte Stichprobe umfasst damit 705 Befragte, davon 73 Prozent aus der Deutschschweiz und 27 Prozent aus der Romandie. Die Grösse der Stichprobe ergibt bei einer Verteilung der Prozentwerte von 50:50 ein Vertrauens-intervall von +/- 3.8 Prozent. Das heisst, ein Tabellenwert von 50 Prozent liegt für die Gesamt-stichprobe mit 95%iger Wahrscheinlichkeit zwischen 46.2 und 53.8 Prozent. Je näher die Prozentwerte an der 50 Prozent-Marke liegen und je weniger Fälle die untersuchte Einheit aufweist, desto grösser ist das Vertrauensintervall.
Published in: Travel Survey Metadata Series
Volume: 37
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Univox 2005
Language: German
Keyword: Univox 2005
DBID source: FORM-1375698072
, Beige, Sigrun, Axhausen, Kay W., 2013 >>
Author(s): Beige, Sigrun, Axhausen, Kay W.
Title: Univox 2003 - Vertiefte Auswertungen zur langfristigen räumlichen Mobilität
Abstract: UNIVOX ist eine umfassende Langzeitbeobachtung unserer Gesellschaft, die das GfS- Forschungsinstitut in Zusammenarbeit mit rund 20 spezialisierten, zumeist universitären Instituten seit 1986 jährlich realisiert. Gesamtverantwortung und Koordination: GfS- Forschungsinstitut, Abteilung "Wirtschaftsforschung und Sozialmarketing". Univox 2003 Vertiefung: Die Grundlage für die vorliegende Analyse bildet eine durch das GfS-Forschungsinstitut zusammen mit insgesamt vier Kooperationspartnern zwischen dem 3. Februar und 21. Februar 2003 durchgeführte Befragung. Die Befragung wurde nach der bei UNIVOX üblichen Befragungsanlage realisiert. Ein Interview dauerte im Schnitt 50 Minuten (zusammen mit anderen befragten Themenbereichen). Befragt wurden Stimmberechtigte, die mit Hilfe eines kombinierten Random-/ Quotaverfahrens ausgewählt wurden: Aufgrund der effektiven Verteilung wurden in einem ersten Schritt Deutsch- und Westschweiz sowie agglomerierte und ländliche Gegenden ausgeschieden. Innerhalb dieser Gebiete erfolgte die Ortsauswahl nach einem gewichteten Zufallsverfahren. Dabei wurden ca. 70 Gemeinden (sampling points) ausgewählt. In einem zweiten Schritt wurden innerhalb dieser Gemeinden die Zielpersonen für die Interviews nach dem Quotenverfahren bestimmt. Die Personenauswahl nahmen die BefragerInnen selbst vor. Sie hatten sich dabei bei jeweils 10 Interviews an Quoten für das Geschlecht, das Alter und den Beruf zu halten. Die so realisierte Stichprobe umfasst damit 705 Befragte, davon 73 Prozent aus der Deutschschweiz und 27 Prozent aus der Romandie. Die Grösse der Stichprobe ergibt bei einer Verteilung der Prozentwerte von 50:50 ein Vertrauens-intervall von +/- 3.8 Prozent. Das heisst, ein Tabellenwert von 50 Prozent liegt für die Gesamt-stichprobe mit 95%iger Wahrscheinlichkeit zwischen 46.2 und 53.8 Prozent. Je näher die Prozentwerte an der 50 Prozent-Marke liegen und je weniger Fälle die untersuchte Einheit aufweist, desto grösser ist das Vertrauensintervall.
Published in: Travel Survey Metadata Series
Volume: 36
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Univox 2003 Vertiefung
Language: German
Keyword: Univox 2003 Vertiefung
DBID source: FORM-1375697660
, Beige, Sigrun, Axhausen, Kay W., 2013 >>
Author(s): Beige, Sigrun, Axhausen, Kay W.
Title: Univox 2003 - Besitz von MobilitÄtsressourcen und deren Nutzung sowie Änderungen des Wohnortes
Abstract: UNIVOX ist eine umfassende Langzeitbeobachtung unserer Gesellschaft, die das GfS- Forschungsinstitut in Zusammenarbeit mit rund 20 spezialisierten, zumeist universitären Instituten seit 1986 jährlich realisiert. Gesamtverantwortung und Koordination: GfS- Forschungsinstitut, Abteilung "Wirtschaftsforschung und Sozialmarketing". Univox 2003: Die Grundlage für die vorliegende Analyse bildet eine durch das GfS-Forschungsinstitut zusammen mit insgesamt vier Kooperationspartnern zwischen dem 3. Februar und 21. Februar 2003 durchgeführte Befragung. Die Befragung wurde nach der bei UNIVOX üblichen Befragungsanlage realisiert. Ein Interview dauerte im Schnitt 50 Minuten (zusammen mit anderen befragten Themenbereichen). Befragt wurden Stimmberechtigte, die mit Hilfe eines kombinierten Random-/ Quotaverfahrens ausgewählt wurden: Aufgrund der effektiven Verteilung wurden in einem ersten Schritt Deutsch- und Westschweiz sowie agglomerierte und ländliche Gegenden ausgeschieden. Innerhalb dieser Gebiete erfolgte die Ortsauswahl nach einem gewichteten Zufallsverfahren. Dabei wurden ca. 70 Gemeinden (sampling points) ausgewählt. In einem zweiten Schritt wurden innerhalb dieser Gemeinden die Zielpersonen für die Interviews nach dem Quotenverfahren bestimmt. Die Personenauswahl nahmen die BefragerInnen selbst vor. Sie hatten sich dabei bei jeweils 10 Interviews an Quoten für das Geschlecht, das Alter und den Beruf zu halten. Die so realisierte Stichprobe umfasst damit 705 Befragte, davon 73 Prozent aus der Deutschschweiz und 27 Prozent aus der Romandie. Die Grösse der Stichprobe ergibt bei einer Verteilung der Prozentwerte von 50:50 ein Vertrauens-intervall von +/- 3.8 Prozent. Das heisst, ein Tabellenwert von 50 Prozent liegt für die Gesamt-stichprobe mit 95%iger Wahrscheinlichkeit zwischen 46.2 und 53.8 Prozent. Je näher die Prozentwerte an der 50 Prozent-Marke liegen und je weniger Fälle die untersuchte Einheit aufweist, desto grösser ist das Vertrauensintervall.
Published in: Travel Survey Metadata Series
Volume: 35
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Univox 2003
Language: German
Keyword: Univox 2003
DBID source: FORM-1375697359
, Axhausen, Kay W., Marmolejo, Alejandro, 2013 >>
Author(s): Axhausen, Kay W., Marmolejo, Alejandro
Title: Flat demand for driving? An analysis of the Swiss case 1990 - 2010
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: Workshop on Dynamics in Travel Behaviour, University of Maryland
Event date: January 2013
Place: College Park, MD, USA
Language: English
DBID source: FORM-1374502797
, Axhausen, Kay W., Bratrich, Christine, Lippuner, Catherine, Erath, Alexander, 2013 >>
Author(s): Axhausen, Kay W., Bratrich, Christine, Lippuner, Catherine, Erath, Alexander
Title: ETH Sustainability Summer School: Future Cities - Network and Grammars
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Event name: ETH Sustainability Summer School
Event date: 24 June - 12 July, 2013
Place: Singapore
Language: English
DBID source: FORM-1383037492
, Axhausen, Kay W., 2013 >>
Author(s): Axhausen, Kay W.
Title: Wert der Zeit
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: Universitätstagung Verkehrswesen 2013
Event date: September 29 - October 1, 2013
Place: Kappel am Albis, Switzerland
Language: German
DBID source: FORM-1380614728
, Axhausen, Kay W., 2013 >>
Author(s): Axhausen, Kay W.
Title: Univox 2001 - Der Verkehrsmarkt im Gleichgewicht?
Abstract: UNIVOX ist eine umfassende Langzeitbeobachtung unserer Gesellschaft, die das GfS- Forschungsinstitut in Zusammenarbeit mit rund 20 spezialisierten, zumeist universitären Instituten seit 1986 jährlich realisiert. Gesamtverantwortung und Koordination: GfS- Forschungsinstitut, Abteilung "Wirtschaftsforschung und Sozialmarketing". UNIVOX 2001: Die Grundlage für die vorliegende Analyse bildet eine durch das GfS-Forschungsinstitut zusammen mit insgesamt vier Kooperationspartnern zwischen dem 22. Januar und 9. Februar 2001 durchgeführte Befragung. Die Befragung wurde nach der bei UNIVOX üblichen Befragungsanlage realisiert. Ein Interview dauerte im Schnitt 42 Minuten (zusammen mit anderen befragten Themenbereichen). Befragt wurden Stimmberechtigte, die mit Hilfe eines kombinierten Random-/ Quotaverfahrens ausgewählt wurden: Aufgrund der effektiven Verteilung wurden in einem ersten Schritt Deutsch- und Westschweiz sowie agglomerierte und ländliche Gegenden ausgeschieden. Innerhalb dieser Gebiete erfolgte die Ortsaus-wahl nach einem gewichteten Zufallsverfahren. Dabei wurden ca. 70 Gemeinden (sampling points) ausgewählt. In einem zweiten Schritt wurden innerhalb dieser Gemeinden die Zielpersonen für die Interviews nach dem Quotenverfahren bestimmt. Die Personenauswahl nahmen die BefragerInnen selbst vor. Sie hatten sich dabei bei jeweils 10 Interviews an Quoten für das Geschlecht, das Alter und den Beruf zu halten. Die so realisierte Stichprobe umfasst damit 699 Befragte, davon 76 Prozent aus der Deutschschweiz und 24 Prozent aus der Romandie. Die Grösse der Stichprobe ergibt bei einer Verteilung der Prozentwerte von 50:50 ein Vertrauensintervall von +/- 3.8 Prozent. Das heisst, ein Tabellenwert von 50 Prozent liegt für die Gesamtstichprobe mit 95%iger Wahrscheinlichkeit zwischen 46.2 und 53.8 Prozent. Je näher die Prozentwerte an der 50 Prozent-Marke liegen und je weniger Fälle die untersuchte Einheit aufweist, desto grösser ist das Vertrauensintervall.
Published in: Travel Survey Metadata Series
Volume: 34
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Univox 2001
Language: German
Keyword: Univox 2001
DBID source: FORM-1375697000
, Axhausen, Kay W., 2013 >>
Author(s): Axhausen, Kay W.
Title: Univox 1999 - Fahrerlaubnisse, PW's und Abos: Die Dynamik von Erwerb und Nutzung
Abstract: UNIVOX ist eine umfassende Langzeitbeobachtung unserer Gesellschaft, die das GfS- Forschungsinstitut in Zusammenarbeit mit rund 20 spezialisierten, zumeist universitären Instituten seit 1986 jährlich realisiert. Gesamtverantwortung und Koordination: GfS- Forschungsinstitut, Abteilung "Wirtschaftsforschung und Sozialmarketing". UNIVOX 1999: Die Grundlage für die vorliegende Analyse bildet eine durch das GfS-Forschungsinstitut zusammen mit vier verschiedenen Hochschulinstituten zwischen dem 7. und 25. Juni 1999 durchgeführte Befragung. Die Befragung wurde nach der bei UNIVOX üblichen Befragungsanlage realisiert (vgl. Technischer Bericht UNIVOX-Umfrage Juni 1999). Ein Interview dauerte im Schnitt 44 Minuten. Befragt wurden Stimmberechtigte, die mit Hilfe eines kombinierten Random-/ Quotaverfahrens ausgewählt wurden: Aufgrund der effektiven Verteilung wurden in einem ersten Schritt Deutsch- und Westschweiz sowie agglomerierte und ländliche Gegenden ausgeschieden. Innerhalb dieser Gebiete erfolgte die Ortsaus-wahl nach einem gewichteten Zufallsverfahren. Dabei wurden ca. 70 Gemeinden (sampling points) ausgewählt. In einem zweiten Schritt wurden innerhalb dieser Gemeinden die Zielpersonen für die Interviews nach dem Quotenverfahren bestimmt. Die Personenauswahl nahmen die BefragerInnen selbst vor. Sie hatten sich dabei bei jeweils 10 Interviews an Quoten für das Geschlecht, das Alter und den Beruf zu halten. Die so realisierte Stichprobe umfasst damit 722 Befragte, davon 74 Prozent aus der Deutschschweiz und 26 Prozent aus der Romandie. Die Grösse der Stichprobe ergibt bei einer Verteilung der Prozentwerte von 50:50 ein Vertrauensintervall von +/- 3.8 Prozent. Das heisst, ein Tabellenwert von 50 Prozent liegt für die Gesamtstichprobe mit 95%iger Wahrscheinlichkeit zwischen 46.2 und 53.8 Prozent. Je näher die Prozentwerte an der 50 Prozent-Marke liegen und je weniger Fälle die untersuchte Einheit aufweist, desto grösser ist das Vertrauensintervall.
Published in: Travel Survey Metadata Series
Volume: 33
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Univox 1999
Language: German
Keyword: Univox 1999
DBID source: FORM-1375696567
, Axhausen, Kay W., 2013 >>
Author(s): Axhausen, Kay W.
Title: SwissMetro
Abstract: The SwissMetro is a proposed major innovation to the Swiss transport system : an underground mag-lev system to connect the major urban centres in Switzerland. As part of the various assessment studies carried out so far, Abay (1999) conducted a substantial RP/SP survey of longdistance road and rail travellers using a two-stage survey method. First, the respondents were interviewed or observed about a current trip. Based on this trip SP exercises were generated, which the respondent answered in turn. This dataset consists of survey data collected on the trains between St. Gallen and Geneva, Switzerland, during March 1998. The respondents provided information in order to analyze the impact of the modal innovation in transportation, represented by the Swissmetro, a revolutionary mag-lev underground system, against the usual transport modes represented by car and train. The Swissmetro is a true innovation. It is therefore not appropriate to base forecasts of its impact on observations of existing revealed preferences (RP) data. It is necessary to obtain data from surveys of hypothetical markets/situations, which include the innovation, to assess the impact. Survey data were collected on rail-based travels, interviewing 470 respondents. Due to data problems, only 441 are used here. Nine stated choice situations were generated for each of 441 respondents, offering three alternatives: rail, Swissmetro and car (only for car owners). A similar method for relevant car trips with a household or telephone survey was deemed impractical. The sample was therefore constructed using license plate observations on the motorways in the corridor by means of video recorders. A total of 10529 relevant license plates were recorded during September 1997. The central Swiss car license agency had agreed to send up to 10000 owners of these cars a survey-pack. Until April 1998, 9658 letters were mailed, of which 1758 were returned. A total of 1070 persons filled in the survey completely and were willing to participate in the second SP survey, which was generated using the same approach used for the rail interviews. 750 usable SP surveys were returned, from the license-plate based survey.
Published in: Travel Survey Metadata Series
Volume: 42
Publication date / Date received: 2013-01-01
Publication status: Zürich
Publication status: Published
Subjects: Swissmetro, Switzerland
Language: English
Keyword: Swissmetro, Switzerland
DBID source: FORM-1375698682
, Axhausen, Kay W., 2013 >>
Author(s): Axhausen, Kay W.
Title: Singapore's travel demand management in a dead end?
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: Rotary Singapore-West
Event date: August 2013
Place: Singapore
Language: English
DBID source: FORM-1406192458
, Axhausen, Kay W., 2013 >>
Author(s): Axhausen, Kay W.
Title: Models of daily life and travel
Subtitle: Usage for public health
Publication date / Date received: 2013-01-01
Publication status: Published
Language: English
DBID source: FORM-1364548118
, Axhausen, Kay W., 2013 >>
Author(s): Axhausen, Kay W.
Title: Large choice sets in agent-based simulations
Subtitle: Some experiences
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: 3rd International Choice Modelling Conference
Event date: July 3-5, 2013
Place: Sydney, Australia
Language: English
DBID source: FORM-1374494194
, Axhausen, Kay W., 2013 >>
Author(s): Axhausen, Kay W.
Title: Engineering growing networks
Subtitle: Some ideas
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: Center for infrastructure, Sustainable Transportation and Urban Planning (CiSTUP) of Indian Institute of Science (IISc)
Event date: May 16, 2013
Place: Bangalore, India
Language: English
DBID source: FORM-1369133636
, Axhausen, Kay W., 2013 >>
Author(s): Axhausen, Kay W.
Title: Agent-based modelling of travel behaviour and flow
Subtitle: The MATSim implementation in Singapore and elsewhere
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: Seminar of Hong Kong Society for Transportation Studies and The Hong Kong Polytechnic University
Event date: March 20, 2013
Place: Hong Kong
Language: English
DBID source: FORM-1364228678
, Axhausen, Kay W., 2013 >>
Author(s): Axhausen, Kay W.
Title: Agent-based Travel Demand and Traffic Flow Modelling for Mega Cities
Publication date / Date received: 2013-01-01
Publication status: Published
Event name: Swissnex "Shaping the Urban Future" IIHS Lecture Series
Event date: May 17, 2013
Place: Bangalore, India
Language: English
DBID source: FORM-1369134057
, Arentze, Theo, Kowald, Matthias, Axhausen, Kay W., 2013 >>
Author(s): Arentze, Theo, Kowald, Matthias, Axhausen, Kay W.
Title: An agent-based random-utility-maximization model to generate social networks with transitivity in geographic space
Abstract: Stochastic actor-based approaches receive increasing interest in the generation of social networks for simulation in time and space. Existing models however cannot be readily integrated in agent-based models that assume random-utility-maximizing behavior of agents. We propose an agent-based model to generate social networks explicitly in geographic space which is formulated in the random-utility-maximizing (RUM) framework. The proposed model consists of a friendship formation mechanism and a component to simulate social encounters in a population. We show how transitivity can be incorporated in both components and how the model can be estimated based on data of personal networks using likelihood estimation. In an application to the Swiss context, we demonstrate the estimation and ability of the model to reproduce relevant characteristics of networks, such as geographic proximity, attribute similarity (homophily), size of personal networks (degree distribution) and clustering (transitivity). We conclude that the proposed social-network model fits seamlessly in existing large-scale micro-simulation systems which assume RUM behavior of agents.
Published in: Social networks
Volume: 35
Issue: 3
Pages: 451 - 459
ISSN: 0378-8733
Publication date / Date received: 2013-01-01
Publication status: Amsterdam
Publication status: Published
Subjects: Soziologie, Ethnologie und Geschlechter-fragen|Sociology, Ethnology and Gender Studies, Social network generation, Random utility maximization, Spatial choice modeling, Agent-based modeling, Likelihood estimation
Language: English
Keyword: Social network generation, Random utility maximization, Spatial choice modeling, Agent-based modeling, Likelihood estimation
DBID source: FORM-1368514608, WOS-000322692600016
DOI: 10.1016/j.socnet.2013.05.002
Nebis system number: 000017194

 

 

2012-1980

 

, Axhausen, Kay W., 1988 >>
Author(s): Axhausen, Kay W.
Title: A Simultaneous Simulation of Activity Chains and Traffic Flow
Abstract: A simultaneous simulation of activity chains brings together two threads of research to provide a modelling framework for a number of recent issues in transportation planning, like the modelling of parking or the evaluation of information systems. The first thread, the consecutive simulation of activity chains, has been under development in Germany for the last fifteen years as an alternative approach to the "four-step" aggregate forecasting procedures. The second thread, the simulation of traffic flows, has been extensively applied to traffic engineering problems. The paper will present a short review of the developments in activity chain modelling, followed by a discussion of the new approach and a detailed description of an example imple-mentation.
Publication date / Date received: 1988-01-01
Publication status: Karlsruhe, Germany
Publication status: Published
Event name: 2. Oxford Conference on Travel and Transportation
Event date: 1988
Place: Oxford, UK
Language: English
DBID source: FORM-1338474997
, Arentze, T.A., Kowald, Matthias, Axhausen, Kay W., 2012 >>
Author(s): Arentze, T.A., Kowald, Matthias, Axhausen, Kay W.
Title: A Method to Model Population-Wide Social Networks for Large Scale Activity-Travel Micro-Simulations
Publication date / Date received: 2012-01-01
Publication status: Zürich
Publication status: Accepted
Event name: 91th Annual Meeting of the Transportation Research Board
Event date: January 2012
Place: Washington, D.C., USA
Language: English
Review status: Unknown
DBID source: FORM-1312491189
Nebis system number: 005338724
, Meister, K., Frick, M., Axhausen, K.W., 2005 >>
Author(s): Meister, K., Frick, M., Axhausen, K.W.
Title: A GA-based household scheduler
Abstract: One way of making activity-based travel analysis operational for transport planning is multi-agent micro-simulation. Modelling activity and trip generation based on individual and social characteristics are central steps in this method. The model presented here generates complete daily activity schedules based on the structure of a household and its members activity calendars. The model assumes that the household is another basic decisionmaking unit for travel demand aside from individual mobility needs. Results of the model are schedules containing complete information about activity type and sequence, locations, and means of transportation, as well as activity start times and durations. The generated schedules are the outcome of a probabilistic optimisation using genetic algorithms. This iterative method improves solutions found in a random search according to the specification of a fitness criterion, which equals utility here. It contains behavioural assumptions about individuals as well as the household level. Individual utility is derived from the number of activities and their respective durations. It is reduced by costs of travelling and penalties for late, respectively early arrival. The household level is represented directly by the utility of joint activities, and indirectly by allocation of activities and means of transportation to household members. The paper presents initial tests with a three-person household, detailing resulting schedules, and discussing run-time experiences. A sensitivity analysis of the joint utility parameter impact is also included.
Published in: Transportation
Volume: 32
Issue: 5
Pages: 473 - 494
ISSN: 0049-4488, 1572-9435
Publication date / Date received: 2005-01-01
Publication status: Berlin
Publication status: Published
Subjects: Activity scheduling, agent-based demand generation, genetic algorithms, intrahousehold interaction
Language: English
Review status: Peer reviewed
Keyword: Activity scheduling, agent-based demand generation, genetic algorithms, intrahousehold interaction
DBID source: FORM-1288350756, WOS-000230723300003, PP-19590, PP-19564
DOI: 10.1007/s11116-005-5325-3
Nebis system number: 000056550
, Erath, Alex, Axhausen, Kay W., 2008 >>
Author(s): Erath, Alex, Axhausen, Kay W.
Title: A Framework of assessing vulnerability of transport infrastructure
Abstract: This paper presents a methodology to assess link failure induced transportation related consequences including congestion related effects across a national network. The main challenge hereby considered is how to overcome the calculation time intensity of this equilibrium-based approach. Rather than employing the complete network for analyising a link failure, subnetworks are employed to model the spatially restricted demand shifts effects around a failed link. Each subnetwork is formulated by cutting a geographically defined selection of links and nodes out of the national network and including the internal and external demand traversing the subnetwork boundary. In an other paper describing the same piece of research it was shown that the failure consequences, even for links with long path distances or long detours, assessed with the subnetwork are very consistent with those considering the full network. This paper discusses the applicability, sensitivity and limitations of the approach are proved by Three selective case studies: It is demonstrated that the use of simplified networks, provided by current transport models, instead of high resolution networks has only minor impacts to accuracy. However, in some cases the consideration of subordinate network elements leads to more appropriate results and is therefore necessary. The paper presents a methodology how these cases can be detected and processed. Furthermore, an approach to detect links where the assumption of inelastic demand leads to substantial bias is presented and it is shown how the methodology can be extended for theses cases in a simple manner in order to include potential mode shifts.
Pages: 1 - 19
Publication date / Date received: 2008-01-01
Publication status: Ascona
Publication status: Published
Event name: 8th STRC Swiss Transport Research Conference
Event date: October 15-17, 2008
Place: Ascona, Switzerland
Language: English
Review status: Unknown
DBID source: PP-41319
, Märki, Fabian, Charypar, David, Axhausen, Kay W., 2011 >>
Author(s): Märki, Fabian, Charypar, David, Axhausen, Kay W.
Title: A Continuous Simulation Concept for Daily Travel
Abstract: This paper proposes a microscopic traffic simulation that employs a continuous planning approach together with an open time horizon. It uses behavioral guidelines and the concept of projects to model people's motivation to execute activities. People's behavior originates from a planning heuristic making on the fly decisions about upcoming activities. The planning heuristic bases its decisions on the available activity options in the near planning future and on a discomfort measure which is derived from deviations between people's performance and their behavioral guidelines.2
Published in: Arbeitsberichte Verkehrs- und Raumplanung
Volume: 679
Publication date / Date received: 2011-05-01
Publication status: Zürich
Publication status: Published
Subjects: Behavioral guidelines, Personal projects, Continuous activity generation, Open time horizon, Microscopic traffic simulation
Event name: 11th Swiss Transport Research Conference (STRC 2011)
Event date: May 11-14, 2011
Place: Ascona, Switzerland
Language: English
Review status: Peer reviewed
Keyword: Behavioral guidelines, Personal projects, Continuous activity generation, Open time horizon, Microscopic traffic simulation
DBID source: FORM-1305894902
DOI: 10.3929/ethz-a-006467078
Nebis system number: 006467078
, Axhausen, K.W., 2003 >>
Author(s): Axhausen, K.W.
Title: 50 Jahre Infrastrukturausbau in der Schweiz
Subtitle: Was war das Ergebnis?
Publication date / Date received: 2003-01-01
Publication status: Published
Event name: Vortrag beim RC Zürich
Event date: August 2003
Place: Zurich, Switzerland
Language: German
Review status: Unknown
DBID source: FORM-1309215992
, Axhausen, K.W., 2005 >>
Author(s): Axhausen, K.W.
Title: 150 Jahre schrumpfende Schweiz
Subtitle: Die Dynamik von Verkehr und Raumnutzung
Publication date / Date received: 2005-01-01
Publication status: Zürich
Publication status: Published
Event name: 150 ETH Professorinnen und -Professoren im Gespräch
Event date: April 22 - Mai 4, 2005
Place: Zürich, Switzerland
Language: German
DBID source: FORM-1306849505
, Sandmeier, Stefan, Axhausen, Kay W., Frei, Andreas, 2008 >>
Author(s): Sandmeier, Stefan, Axhausen, Kay W., Frei, Andreas
Title: 125 Jahre Verkehrswesen an der ETH Zürich
Abstract: 2
ISBN: 978-3-906441-12-2, 3-906441-12-1
Publication date / Date received: 2008-01-01
Publication status: Zürich
Publication status: Published
Subjects: Wissenschaft und Technik allgemein|Science and Technology, General
Language: German
Review status: Peer reviewed
DBID source: PP-41286
DOI: 10.3929/ethz-a-005541048
Nebis system number: 005541048
, Axhausen, Kay W., Sammer, Gerd, 2001 >>
Author(s): Axhausen, Kay W., Sammer, Gerd
Title: "Stated responses"
Subtitle: Überblick, Grenzen, Möglichkeiten
Abstract: Dieser Aufsatz stellt die Verfahren der stated responses in ihren Grenzen und Möglichkeiten vor. Dabei werden sowohl die verschiedenen Formen dieses Befragungsansatzes dargestellt, wie auch die Voraussetzungen für deren Anwendung. Besondere Aufmerksamkeit erhalten die Probleme bei der Anwendung und die Positionierung solcher Verfahren im gesamten For- schungsprozess. Dieser Aufsatz ist Teil einer Gruppe von Beiträgen im Internationalen Verkehrswesen, die zum erstenmal bei einer Veranstaltung des Schweizer Nationalen Forschungsprogramms 41 im März 2000 in Zürich vorgestellt wurden.
Published in: Arbeitsbericht Verkehrs- und Raumplanung
Volume: 73
Publication date / Date received: 2001-01-01
Publication status: Zürich
Publication status: Published
Subjects: Verkehrsplanung, Strassen- und Eisenbahnbau|Traffic, Highway and Railroad Engineering
Language: German
DBID source: FORM-1369928341
DOI: 10.3929/ethz-a-004232317
Nebis system number: 004232317

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