01340269

Component

https://doi.org/10.3141/2230-11

http://scholar.google.com...just&publication_year=2011

This work develops a methodology for converting data from the Global Positioning System (GPS) into observed routes (routes actually taken) to characterize intraindividual and interindividual variability in route choice and to compare observed and minimum-cost routes. Exploration of observed route choice behavior is crucial because the underlying decision-making process is more complex and dynamic for route choice than for other travel choice dimensions. Furthermore, the difficulties associated with collection of data on route choice are reflected in the scarcity of studies on observed behavior and the major simplifications made in traffic assignment models developed for the most common commercial software. The present study analyzes a GPS-based database of 679 routes, collected by a personal probe system called the activity locator over a period of 2 weeks for a sample of 12 students from the University of Cagliari in Italy. In particular, variability in the daily route (for the same individual and for several individuals) and observed deviations of the route from minimum-cost routes have been examined in depth. The results indicate that higher levels of intraindividual variability are found for discretionary trips, whereas higher levels of interindividual variability, as well as greater deviation from minimum-cost routes, are associated with work or study trips.

01357339

11-2672

English

pp 96-103

2011

Transportation Research Record: Journal of the Transportation Research Board

9780309167444

Print

Figures (2) ; References (28) ; Tables (2)

Daily; Data collection; Databases; Decision making; Global Positioning System; Route choice; School trips; Traffic assignment; Travel behavior; Work trips

Discretionary trips; Individuals

Cagliari (Italy)

Highways; Planning and Forecasting; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Feb 17 2011 6:14PM

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• Expected Utility Theory, Prospect Theory, and Regret Theory Compared for Prediction of Route Choice Behavior
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• Grocery Shopping: How Individuals and Built Environments Influence Choice of Travel Mode
• Investigating the Role of Social Networks in Start Time and Duration of Activities: Trivariate Simultaneous Econometric Model
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• New Credit Mechanism for Semicooperative Agent-Mediated Joint Activity–Travel Scheduling: Negotiating with Incomplete Information
• Parametric Hazard Functions: Overview
• Repetitiveness of Daily Travel
• Spatial Analysis of Propensity to Escort Children to School in Southern California
• Transcending the Typical Weekday with Large-Scale Single-Day Survey Samples