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

Ashish Bhaskar, Edward Chung, André Gilles Dumont

Research output: Journal article publicationJournal articleAcademic researchpeer-review

26 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)41-54
Number of pages14
JournalTransportation Research Record
Issue number2121
Publication statusPublished - 1 Dec 2009
Externally publishedYes

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanical Engineering


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