On the Accuracy of Schedule-Based Transit Accessibility Measures

Authors: Nate Wessel*, University of Toronto
Topics: Temporal GIS, Geographic Information Science and Systems, Transportation Geography
Keywords: GTFS, public transport, accessibility, transportation, data
Session Type: Poster
Day: 4/11/2018
Start / End Time: 5:20 PM / 7:00 PM
Room: Napoleon Foyer/Common St. Corridor, Sheraton, 3rd Floor
Presentation File: No File Uploaded

The wide availability of General Transit Feed Specification (GTFS) data and it's high-degree of precision have led many researchers to use these datasets to produce detailed and comprehensive measures of regional transit accessibility. The accuracy of these datasets however is largely unknown and has not yet been explicitly addressed in these studies. This research attempts to measure the accuracy of GTFS data for the purpose of averaged accessibility measures by taking GPS-based vehicle locations as a benchmark of actual service. Four major North American cities are used as case studies.

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