Few empirical studies of revealed route characteristics have been reported in the literature. This study challenges the widely applied shortest path assumption by evaluating routes followed by residents of the Minneapolis - St. Paul metropolitan area, as measured by the GPS Component of the 2011 Twin Cities Travel Behavior Inventory. It finds that most travelers used paths longer than the shortest path. Some reasons for this are conjectured.
The raw data used for the research are accessible through the Transportation Secure Data
Center (TSDC) of the National Renewable Energy Laboratory
The Federal Highway Administration of the US Department of Transportation is acknowledged for funding the work under a grant to RSG.
China Scholarship Council.
Tang, Wenyun; Levinson, David, M.
An empirical study of the deviation between actual and shortest travel time paths.
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