Modeling and Implementation of Adaptive Transit Signal Priority on Actuated Control Systems

This article describes the development and implementation of adaptive transit signal priority (TSP) on an actuated dual-ring traffic signal control system. After providing an overview of architecture design of the adaptive TSP system, the article presents an adaptive TSP optimization model that optimizes green splits for 3 consecutive cycles to minimize the weighted sum of transit vehicle delay and other traffic delay, considering the safety and other operational constraints under the dual-ring structure of signal control. The model is illustrated using a numerical example under medium and heavily congested situations. The findings from a field operational test are also reported to validate and demonstrate the developed TSP system. At a congested intersection, it is found that the average bus delay and average traffic delay along the bus movement direction were reduced by approximately 43% and 16%, respectively. Moreover, the average delay of cross-street traffic was increased by about 12%.

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  • Authors:
    • Li, Meng
    • Yin, Yafeng
    • Zhang, Wei-Bin
    • Zhou, Kun
    • Nakamura, Hideki
  • Publication Date: 2011-5

Language

  • English

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  • Accession Number: 01336952
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 12 2011 2:47PM