Planned and Unplanned Disruptions to Transportation Networks

Status:  Complete
Report Date:  12/29/2008

Summary:

Although network disruptions occur from time to time and provide unique opportunities to explore travel behavior, existing studies in the literature are limited. Traffic data were limited in time and locations before loop-detectors were widely deployed, preventing continuous traffic observation. As a result, no statistical analysis have been provided to empirically measure the re-equilibration of traffic flow, a key concept in travel demand modeling. A practical measure of network equilibrium could not only advance theoretical research in travel demand modeling, but also guides the efforts in survey and behavioral study.

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