Reducing bus delay beyond what can be achieved with conventional transit signal priority requires making and responding to longer-range predictions of bus arrival time, which include dwell time at an upstream stop. At the same time, priority decisions based on such uncertain predictions should be reversible if the dwell time should be much longer than expected. Rules for applying these concepts are proposed for application in the framework of self-organizing traffic signal control developed by authors Cesme and Furth. Predicted arrival time is based on a calculation of expected remaining dwell time and is compared with the earliest time the bus phase can be expected to return to green. One possible decision is to expedite return to green so that secondary extensions (a feature of self-organizing control logic) are inhibited. The other is to hold the green; however, this decision can be reversed if updated predictions of expected remaining dwell time indicate that the bus will arrive after the maximum green extension has expired. Simulation tests on a corridor with nine signalized intersections showed a 75% reduction in bus delay, to only 5 s per intersection, with only a 3% increase in general traffic delay.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Predictive–Tentative Transit Signal Priority with Self-Organizing Traffic Signal Control


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    2016-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Look-Ahead Transit Signal Priority Control with Self-Organizing Logic

    Moghimi, Bahman / Kamga, Camille / Zamanipour, Mehdi | ASCE | 2020


    Transit Signal Priority for an Integrated Traffic Signal System

    Minji Kim / Yohee Han / Youngchan Kim | DOAJ | 2022

    Free access

    Integration of Transit Signal Priority Within Adaptive Traffic Signal Control Systems

    National Research Council (U.S.) | British Library Conference Proceedings | 2005


    Side Road Traffic Considered in Transit Signal Priority Control

    Xu, J. / Lin, H. | British Library Conference Proceedings | 2009