A robust quasi-dynamic traffic signal control scheme for queue management

Wei Hua Lin, Hong K. Lo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

For vehicle-actuated traffic signal systems in which both cycle lengths and phases are control variables, it is well known that the best control strategy for minimizing total system delay is to end a phase as soon as queues served during that phase vanish. We extend this logic to intersections where signal coordination or other considerations may warrant a signal timing plan with a stable cycle length. Different from fully dynamic control strategies, the proposed scheme is made up of a set of fixed timing plans with a common cycle length. The decision for choosing a specific plan from this set for each cycle is made at the beginning of the cycle. Our results reveal that though the proposed scheme does not minimize total system delay directly, it provides a good solution for reducing total system delay as well. The proposed scheme is robust with respect to random fluctuation in vehicle arrivals or to changes in vehicle arrival distribution. The preservation of a stable cycle length in the proposed signal timing plan has made it possible to incorporate the proposed scheme into a signal timing plan for an arterial where signal coordination is essential to the performance of the system.

Original languageEnglish (US)
Title of host publicationProceedings of the 13th International Conference of Hong Kong Society for Transportation Studies
Subtitle of host publicationTransportation and Management Science
Pages563-572
Number of pages10
StatePublished - Dec 1 2008
Event13th International Conference of Hong Kong Society for Transportation Studies: Transportation and Management Science - Kowloon, Hong Kong
Duration: Dec 13 2008Dec 15 2008

Publication series

NameProceedings of the 13th International Conference of Hong Kong Society for Transportation Studies: Transportation and Management Science

Other

Other13th International Conference of Hong Kong Society for Transportation Studies: Transportation and Management Science
CountryHong Kong
CityKowloon
Period12/13/0812/15/08

ASJC Scopus subject areas

  • Transportation

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