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Mobile Transit Trip Planning with Real-Time Data

Author

Listed:
  • Jariyasunant, Jerald
  • Work, Daniel B.
  • Kerkez, Branko
  • Sengupta, Raja
  • Glaser, Steven
  • Bayen, Alexandre

Abstract

In this article, we describe the development of atransit trip planner(TTP) for mobile devicescalled Transitr, and evaluate its performance. The system predicts the shortest paths betweenany two points in the transit network using real-time information provided by a third party busarrival prediction system, relying on GPS equipped transit vehicles. Users submit their originand destination through a map-based iPhone application, or through a JavaScript enabled webbrowser. A server implementing a dynamic K-shortest paths algorithm with predicted linktravel times returns personalized route directions for the user, displayed on a map. To assessthe optimality and accuracy of the predicted shortest paths, an a posteriori comparison witha schedule-based transit trip planner and the GPS traces of the transit vehicles is performedon six-hundred origin destination pairs in San Francisco. The results show that routing usingthe predicted bus arrivals marginally increases the accuracy of the total travel time and theoptimality of the route. Suggestions to improve the accuracy and optimality using real-timeinformation are proposed.

Suggested Citation

  • Jariyasunant, Jerald & Work, Daniel B. & Kerkez, Branko & Sengupta, Raja & Glaser, Steven & Bayen, Alexandre, 2011. "Mobile Transit Trip Planning with Real-Time Data," University of California Transportation Center, Working Papers qt51t364vz, University of California Transportation Center.
  • Handle: RePEc:cdl:uctcwp:qt51t364vz
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    References listed on IDEAS

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    1. Dessouky, Maged & Hall, Randolph & Zhang, Lei & Singh, Ajay, 2003. "Real-time control of buses for schedule coordination at a terminal," Transportation Research Part A: Policy and Practice, Elsevier, vol. 37(2), pages 145-164, February.
    2. Daganzo, Carlos F, 2008. "How to Improve Bus Service," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt6m707144, Institute of Transportation Studies, UC Berkeley.
    3. Rossetti, Manuel D. & Turitto, Timothy, 1998. "Comparing static and dynamic threshold based control strategies," Transportation Research Part A: Policy and Practice, Elsevier, vol. 32(8), pages 607-620, November.
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    Social and Behavioral Sciences;

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