Signal Preemption and Optimization Methodology for Corridors with Multiple HRGCs

Yifeng Chen, Laurence R. Rilett

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

Abstract

Safety and efficiency are two critical issues at highway-rail grade crossings (HRGCs) and their nearby intersections. The standard preemption provides little or no consideration to pedestrian safety, or traffic signal efficiency of signalized intersections near highway-rail grade crossings. To solve these issues, a case study was conducted, and developed a simulation-based optimization methodology for estimating traffic signal timing plans on arterial corridors with multiple intersections near HRGCs. Genetic algorithm (GA) was used as the optimization approach, and a new transition preemption strategy for dual tracks (TPS_DT) and a train arrival prediction model were integrated in the proposed methodology. A sensitivity analysis with different train traffic scenarios was conducted. Measurements of effectiveness (MOEs) used for evaluation include rate of pedestrian cutoffs, intersection vehicle delay, and corridor vehicle delay. It was concluded that the methodology can significantly improve both the safety and efficiency of traffic corridors with multiple intersections near HRGCs.

Original languageEnglish (US)
Title of host publicationCICTP 2020
Subtitle of host publicationTransportation Evolution Impacting Future Mobility - Selected Papers from the 20th COTA International Conference of Transportation Professionals
EditorsHeng Wei, Haizhong Wang, Lei Zhang, Yisheng An, Xiangmo Zhao
PublisherAmerican Society of Civil Engineers (ASCE)
Pages737-749
Number of pages13
ISBN (Electronic)9780784483053
StatePublished - 2020
Event20th COTA International Conference of Transportation Professionals: Transportation Evolution Impacting Future Mobility, CICTP 2020 - Xi'an, China
Duration: Aug 14 2020Aug 16 2020

Publication series

NameCICTP 2020: Transportation Evolution Impacting Future Mobility - Selected Papers from the 20th COTA International Conference of Transportation Professionals

Conference

Conference20th COTA International Conference of Transportation Professionals: Transportation Evolution Impacting Future Mobility, CICTP 2020
Country/TerritoryChina
CityXi'an
Period8/14/208/16/20

ASJC Scopus subject areas

  • Transportation

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