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, Montini, Lara, Axhausen, Kay W., 2015 >>
Autor(en): Montini, Lara, Axhausen, Kay W.
Titel: Preliminary results: Route choice analysis from multi-day GPS data
Kurzbeschreibung: 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
Publikationsdatum / Empfangsdatum: 2015-01-01
Publikations-Status: Published
Eventname: 15th Swiss Transport Research Conference (STRC 2015)
Eventdatum: 15-17 April 2015
Ort: Ascona, Switzerland
Sprache: English
DBID Quelle: FORM-1432305260
, Montini, Lara, Rieser, Nadine, 2014 >>
Autor(en): Montini, Lara, Rieser, Nadine
Titel: Implementation and pretest of the trip purpose detection
Kurzbeschreibung: This deliverable provides an overview over the current status of the work in Work Package 4 "Automated Travel Mode and Trip Purpose Detection". The deliverable is focused on Task 4.3 Development and implementation of trip purpose imputation. The goal of this task is to implement the detection of trip purposes using temporal and spatial patterns observed in the GPS data. That includes timings and durations of activities and frequencies of visited places. In this deliverable we introduce trip purpose identification using random forests, a machine- learning approach based on decision trees. Analysis is done using 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
Publiziert in: Peacox Public Deliverables
Band: D4.2
Publikationsdatum / Empfangsdatum: 2014-02-28
Publikations-Status: Wien
Publikations-Status: Published
Sprache: English
DBID Quelle: FORM-1415105817
, Rieser-Schüssler, Nadine, Rieser, Marcel, Montini, Lara, Axhausen, Kay W., 2014 >>
Autor(en): Rieser-Schüssler, Nadine, Rieser, Marcel, Montini, Lara, Axhausen, Kay W.
Titel: Exploring choice set generation approaches for public transport connection choice
Kurzbeschreibung: 2
Publikationsdatum / Empfangsdatum: 2014-01-01
Publikations-Status: Unpublished
Eventname: 14th Swiss Transport Research Conference (STRC 2014)
Eventdatum: May 14-16, 2014
Ort: Ascona, Switzerland
Sprache: English
DBID Quelle: FORM-1415109090
, Rieser-Schüssler, Nadine, Rieser, Marcel, Montini, Lara, Axhausen, Kay W., 2014 >>
Autor(en): Rieser-Schüssler, Nadine, Rieser, Marcel, Montini, Lara, Axhausen, Kay W.
Titel: Exploring choice set generation approaches for public transport connection choice
Kurzbeschreibung: 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.
Publiziert in: Arbeitsberichte Verkehrs- und Raumplanung
Band: 1023
Publikationsdatum / Empfangsdatum: 2014-01-01
Publikations-Status: Zürich
Publikations-Status: Published
Einordnungen: 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
Sprache: English
Schlüsselwort: GPS, Public transport, Choice set generation, Schedule, Network
DBID Quelle: FORM-1409233322
Nebis System Nummer: 004231702
, Montini, Lara, Rieser-Schüssler, Nadine, Horni, Andreas, Axhausen, Kay W., 2014 >>
Autor(en): Montini, Lara, Rieser-Schüssler, Nadine, Horni, Andreas, Axhausen, Kay W.
Titel: Trip Purpose Identification from GPS Tracks
Kurzbeschreibung: 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
Publiziert in: Transportation research record
Band: 2405
Seiten: 16 - 23
ISSN: 0361-1981
Publikationsdatum / Empfangsdatum: 2014-01-01
Publikations-Status: Washington, D.C.
Publikations-Status: Published
Sprache: English
DBID Quelle: FORM-1386676247, WOS-000339602800004
DOI: 10.3141/2405-03
Nebis System Nummer: 000024408
, Montini, Lara, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2014 >>
Autor(en): Montini, Lara, Rieser-Schüssler, Nadine, Axhausen, Kay W.
Titel: Personalisation in multi-day GPS and accelerometer data processing
Kurzbeschreibung: 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 %).
Publikationsdatum / Empfangsdatum: 2014-01-01
Publikations-Status: Ascona
Publikations-Status: Published
Einordnungen: GPS processing, Trip purpose, Personalisation
Eventname: 14th Swiss Transport Research Conference (STRC 2014)
Eventdatum: May 14-16, 2014
Ort: Ascona, Switzerland
Sprache: English
Schlüsselwort: GPS processing, Trip purpose, Personalisation
DBID Quelle: FORM-1400091352
, Montini, Lara, Rieser, Nadine, 2014 >>
Autor(en): Montini, Lara, Rieser, Nadine
Titel: Implementation and evaluation of learning routines for mode and trip purpose detection
Publiziert in: Peacox Public Deliverables
Seiten: D4.3
Publikationsdatum / Empfangsdatum: 2014-01-01
Publikations-Status: Zürich
Publikations-Status: Published
Sprache: English
DBID Quelle: FORM-1406562308
, Montini, Lara, Prost, Sebastian, Schrammel, Johann, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2014 >>
Autor(en): Montini, Lara, Prost, Sebastian, Schrammel, Johann, Rieser-Schüssler, Nadine, Axhausen, Kay W.
Titel: Comparison of Travel Diaries Generated from Smartphone Data and Dedicated GPS Devices
Kurzbeschreibung: 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
Publikationsdatum / Empfangsdatum: 2014-01-01
Publikations-Status: Unpublished
Eventname: 10th International Conference on Transport Survey Methods
Eventdatum: November 16-21, 2014
Ort: Leura, Australia
Sprache: English
DBID Quelle: FORM-1413479054
, Montini, Lara, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2013 >>
Autor(en): Montini, Lara, Rieser-Schüssler, Nadine, Axhausen, Kay W.
Titel: One-Week GPS-based Travel Survey in the Greater Zurich Area
Untertitel: Field Report
Kurzbeschreibung: 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.
Publikationsdatum / Empfangsdatum: 2013-01-01
Publikations-Status: Ascona
Publikations-Status: Published
Einordnungen: GPS, Post-processing, Activity detection, Mode identification, Prompted recall, Respondent burden
Eventname: 13th Swiss Transport Research Conference (STRC 2013)
Eventdatum: April 26-28, 2013
Ort: Ascona, Switzerland
Sprache: English
Schlüsselwort: GPS, Post-processing, Activity detection, Mode identification, Prompted recall, Respondent burden
DBID Quelle: FORM-1367329726
, Montini, Lara, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2013 >>
Autor(en): Montini, Lara, Rieser-Schüssler, Nadine, Axhausen, Kay W.
Titel: Handling GPS Signal Loss using Accelerometer Data
Kurzbeschreibung: 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
Publikationsdatum / Empfangsdatum: 2013-01-01
Publikations-Status: Published
Eventname: Mobile Ghent '13
Eventdatum: October 23-25, 2013
Ort: Ghent, Belgium
Sprache: English
DBID Quelle: FORM-1376921000, FORM-1415109624
, Montini, Lara, Rieser, Nadine, 2013 >>
Autor(en): Montini, Lara, Rieser, Nadine
Titel: Improved Mode Identification and Related Prompted Recall Interface
Kurzbeschreibung: This deliverable provides an overview over the current status of the work in WP 4 "Automated Travel Mode and Trip Purpose Detection". The main focus is the improvements of the mode identification and the development of the prompted recall interface. In total, the status of three tasks is covered: ? Task 4.1: Extending the mode detection to account for additional modes and the logical order of the resulting mode chains (see Section 2) ? Task 4.2. Validation of the trip and mode detection and calibration of the parameters for the study area (see Section 0) ? Task 4.4 Design, implementation and testing of the prompted-recall survey to obtain user feedback regarding the processing results (see Section 4)2
Publiziert in: Peacox Public Deliverables
Band: D4.1
Publikationsdatum / Empfangsdatum: 2013-01-01
Publikations-Status: Published
Sprache: English
DBID Quelle: FORM-1415106457
, Horni, Andreas, Montini, Lara, Waraich, Rashid A., Axhausen, Kay W., 2013 >>
Autor(en): Horni, Andreas, Montini, Lara, Waraich, Rashid A., Axhausen, Kay W.
Titel: An Agent-Based Cellular Automaton Cruising-For-Parking Simulation
Kurzbeschreibung: 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.
Publiziert in: Transportation letters
Band: 5
Ausgabe: 4
Seiten: 167 - 175
ISSN: 1942-7875, 1942-7867
Publikationsdatum / Empfangsdatum: 2013-01-01
Publikations-Status: Plantation, FL; Leeds
Publikations-Status: Published
Einordnungen: Cellular automaton, Parking search microsimulation
Sprache: English
Schlüsselwort: Cellular automaton, Parking search microsimulation
DBID Quelle: FORM-1376910274, WOS-000328366400002
DOI: 10.1179/1942787513Y.0000000004
, Horni, Andreas, Montini, Lara, 2013 >>
Autor(en): Horni, Andreas, Montini, Lara
Titel: ApplauSim
Untertitel: A Simulation of Synchronous Applause
Publikationsdatum / Empfangsdatum: 2013-01-01
Publikations-Status: Published
Eventname: Colloquium Quantitative Sociology
Eventdatum: April 17, 2013
Ort: Zürich, Switzerland
Sprache: English
DBID Quelle: FORM-1366454340
, Horni, Andreas, Montini, Lara, 2013 >>
Autor(en): Horni, Andreas, Montini, Lara
Titel: ApplauSim
Untertitel: Rhythmischer Applaus als emergentes Phänomen?
Kurzbeschreibung: Wenn auch des Menschen Unheil darin begründet ist, dass er nicht ruhig auf seinem Baum sitzen konnte, so wurde immerhin mit dem Herabsteigen von den Bäumen seine Hände frei zur Benutzung als Werkzeug, nicht zuletzt als Ausdrucks- und somit Kommunikationswerkzeug. Eine Sprache dieses Werkzeugs ist das Klatschen, das sowohl individuelle Gefühle ausdrückt, als auch ein Gemeinschaftsgefühl stiften kann. Vermutlich am grössten ist das Kollektivempfinden beim rhythmischen Klatschen, oft beobachtet in Konzertsälen und teilweise in Sportstätten. In dieser Arbeit wird das Simulationsmodell ApplauSim für rhythmisches Klatschen (siehe z.B. Matthews (2000), Sumpter (2010)) entwickelt und sich der Frage angenähert inwieweit rhythmisches Klatschen als emergent betrachtet werden kann, d.h. als ein Phänomen, das mehr ist als die Summe der beteiligten Einzelteile.
Publiziert in: Arbeitsberichte Verkehrs- und Raumplanung
Band: 853
Publikationsdatum / Empfangsdatum: 2013-01-01
Publikations-Status: Zürich
Publikations-Status: Published
Sprache: German
DBID Quelle: FORM-1370008332
, Horni, Andreas, Montini, Lara, 2013 >>
Autor(en): Horni, Andreas, Montini, Lara
Titel: A Glimpse at Emergence in Agent-Based Simulations
Kurzbeschreibung: Emergence, the formation of complex patterns generated by interaction of comparatively simple individual units, appears in many systems including transport system. Often, emergent effects are highly significant, consequently, the ability to reproduce them is crucial for modeling these systems. Multi-Agent-based simulations are due to their structural similarity to the modeled multi-part systems, expected to be particularly suitable for capturing these effects. The multi-agent transport simulation is focused here. The functional form of MATSim compo- nents, and, consequently, also its potential for emergence is not yet researched intensely. In this paper, the functional form of the network load simulation is studied with simulation experiments using a very simple scenario. To extend the discussion, additionally ApplauSim, a simulation of synchronized applause developed by the authors, is presented.
Publikationsdatum / Empfangsdatum: 2013-01-01
Publikations-Status: Ascona
Publikations-Status: Published
Einordnungen: MATSim, Emergence, ApplauSim, Microsimulation
Eventname: 13th Swiss Transport Research Conference (STRC 2013)
Eventdatum: April 24-26, 2013
Ort: Ascona, Switzerland
Sprache: English
Schlüsselwort: MATSim, Emergence, ApplauSim, Microsimulation
DBID Quelle: FORM-1367321728
, Rieser-Schüssler, Nadine, Montini, Lara, Rieser, Marcel, Axhausen, Kay W., 2012 >>
Autor(en): Rieser-Schüssler, Nadine, Montini, Lara, Rieser, Marcel, Axhausen, Kay W.
Titel: Preparations for estimating public transport connection choice from GPS observations
Kurzbeschreibung: 2
Publikationsdatum / Empfangsdatum: 2012-01-01
Eventname: 13th International Conference on Travel Behaviour Research (IATBR 2012)
Eventdatum: July 2012
Ort: Toronto, Canada
DBID Quelle: FORM-1415102149
, Montini, Lara, Horni, Andreas, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2012 >>
Autor(en): Montini, Lara, Horni, Andreas, Rieser-Schüssler, Nadine, Axhausen, Kay W.
Titel: Searching for Parking in GPS Data
Kurzbeschreibung: Parking search is widely accepted to be a significant contributor to congestion in city centers. The high parking occupation on Saturdays in Zurich suggest this also an issue there. Raw person-based GPS data from Switzerland and especially Zurich is analysed regarding parking search characteristics. For processing the POSDAP routines developed at the institute are extended. The descriptive analysis considers driving times and distances but also subsequent walk stages. Results suggest that search traffic is a local phenomenon and not as dramatic for the overall city as expected.
Publiziert in: Working paper / Transport and Spatial Planning
Band: 780
Publikationsdatum / Empfangsdatum: 2012-01-01
Publikations-Status: Zürich
Publikations-Status: Published
Einordnungen: Geodaesie, Geomatik, Kartographie, Remote Sensing|Geodesy, Geomatics, Cartography, Remote Sensing, GPS, Parking, Post-processing, POSDAP
Eventname: 13th International Conference on Travel Behaviour Research
Eventdatum: July 15-20, 2012
Ort: Toronto, Ontario, Canada
Sprache: English
Schlüsselwort: GPS, Parking, Post-processing, POSDAP
DBID Quelle: FORM-1340857116
DOI: 10.3929/ethz-a-007319185
Nebis System Nummer: 007319185
, Montini, Lara, Horni, Andreas, Rieser-Schüssler, Nadine, Axhausen, Kay W., 2012 >>
Autor(en): Montini, Lara, Horni, Andreas, Rieser-Schüssler, Nadine, Axhausen, Kay W.
Titel: Searching for Parking in GPS Data
Kurzbeschreibung: Parking search is widely accepted to be a significant contributor to congestion in city centers. The high parking occupation on Saturdays in Zurich suggest this also an issue there. Raw person- based GPS data from Switzerland and especially Zurich is analysed regarding parking search characteristics. For processing the POSDAP routines developed at the institute are extended. The descriptive analysis considers driving times and distances but also subsequent walk stages. Results suggest that search traffic is a local phenomenon and not as dramatic for the overall city as expected.
Publikationsdatum / Empfangsdatum: 2012-01-01
Publikations-Status: Ascona
Publikations-Status: Published
Einordnungen: GPS, Parking, Post-processing, POSDAP
Eventname: 12th Swiss Transport Research Conference (STRC 2012)
Eventdatum: May 2-4, 2012
Ort: Ascona, Switzerland
Sprache: English
Schlüsselwort: GPS, Parking, Post-processing, POSDAP
DBID Quelle: FORM-1354548643
, Horni, Andreas, Montini, Lara, Waraich, Rashid A., Axhausen, Kay W., 2012 >>
Autor(en): Horni, Andreas, Montini, Lara, Waraich, Rashid A., Axhausen, Kay W.
Titel: An Agent-Based Cellular Automaton Cruising-For-Parking Simulation
Kurzbeschreibung: This paper reports on the development of an agent-based cruising-for-parking simulation using the cellular automaton approach. The software is ready for application in a real- world scenario and for calibration with empirical data currently surveyed at the authors' institute.
Publiziert in: Working paper / Transport and Spatial Planning
Band: 781
Publikationsdatum / Empfangsdatum: 2012-01-01
Publikations-Status: Zürich
Publikations-Status: Published
Einordnungen: Angewandte Informatik, Künstliche Intelligenz|Applied Computer Science, Artificial Intelligence, Verkehr und Transport|Traffic and Transportation
Eventname: 13th International Conference on Travel Behaviour Research
Eventdatum: July 15-20, 2012
Ort: Toronto, Ontario, Canada
Sprache: English
DBID Quelle: FORM-1340857491
DOI: 10.3929/ethz-a-007319189
Nebis System Nummer: 007319189
, Horni, Andreas, Montini, Lara, Waraich, Rashid A., 2012 >>
Autor(en): Horni, Andreas, Montini, Lara, Waraich, Rashid A.
Titel: Parking
Publikationsdatum / Empfangsdatum: 2012-01-01
Publikations-Status: Published
Eventname: Brownbag: Gruppenseminar, ETH Zürich
Eventdatum: June 4, 2012
Ort: Zürich
Sprache: English
DBID Quelle: FORM-1346395712
, Axhausen, Kay W., Rieser-Schüssler, Nadine, Montini, Lara, 2012 >>
Autor(en): Axhausen, Kay W., Rieser-Schüssler, Nadine, Montini, Lara
Titel: Zwischen Tagebuch und GPS Beobachtung
Untertitel: Wie weiter mit der Messung des Verkehrsverhaltens?
Publikationsdatum / Empfangsdatum: 2012-01-01
Publikations-Status: Published
Sprache: German
Review-Status: Unknown
DBID Quelle: FORM-1338816494
, Schüssler, Nadine, Montini, Lara, Dobler, Christoph, 2011 >>
Autor(en): Schüssler, Nadine, Montini, Lara, Dobler, Christoph
Titel: Improving post-processing routines for GPS observations using prompted-recall data
Kurzbeschreibung: Travel diaries based on person-based GPS observations have become increasingly popular within and beyond the research community due to their manifold advantages compared to classic survey methods such as paper diaries or telephone interviews. However, there are still several open issues concerning the automated post-processing of these large datasets. Without a reliable post-processing, GPS-based studies require either a considerable amount of manual analysis, leading to costly surveys or extensive prompted-recall interviews with the respondents. This paper reports on a travel diary study conducted using GPS devices and a web-based prompted recall element. The focus is on the survey methodology. The survey participants each carry the GPS devices for a week. Every night their data is uploaded via GSM, processed automatically and the results displayed on a web-site where the respondents can add, delete, review, confirm or correct their trip stages and activities that are depicted on digital maps and described in textual form. The paper presents and discusses the prompted recall tool along with the newly improved post-processing routines. The post-processing routines use the standard GPS data as well as accelerometer data and the locations of public transport stops to derive stage start and end times and transportation modes.
Publikationsdatum / Empfangsdatum: 2011-01-01
Publikations-Status: Published
Eventname: 9th International Conference on Transport Survey Methods
Eventdatum: November 14-18, 2011
Ort: Termas de Puyehue, Chile
Sprache: English
Review-Status: Peer reviewed
DBID Quelle: FORM-1320663948

 

 

 

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