Estimation of travel time on urban networks with midlink sources and sinks

This paper presents a methodology for estimation of average travel time on signalized urban networks by integrating cumulative plots and probe data. This integration aims to reduce the relative deviations in the cumulative plots due to midlink sources and sinks. During undersaturated traffic conditions, the concept of a virtual probe is introduced, and therefore, accurate travel time can be obtained when a real probe is unavailable. For oversaturated traffic conditions, only one probe per travel time estimation interval-360 s or 3% of vehicles traversing the link as a probe-has the potential to provide accurate travel time


Published in:
Transportation Research Record , 2121, 41-54
Year:
2009
Publisher:
National Academy of Sciences
ISSN:
0361-1981
Keywords:
Laboratories:




 Record created 2010-07-02, last modified 2018-03-17


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