A large number of simulation runs of an urban network traffic model have been used to evaluate a Bus Priority System (BPS) algorithm that automatically grants a green signal to buses as they approach an intersection. BPS was found to provide substantial travel time improvements (20 to 30 percent) to buses in local service (frequent stops) at all headways, to buses in limited service (infrequent bus stops), and to express service (no bus stops) at headways of one minute and less. The disrupting effect of BPS on cross-street traffic is much less when far-side bus stops instead of near-side bus stops are used. The use of BPS also reduced the delaying effect of buses on other bus-street traffic. For all conditions tested, total passenger travel time per hour of system operation improved when BPS was used.


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    Title :

    Unconditionally Preemptive Bus Priority System: Summary of Simulation Results


    Contributors:

    Publication date :

    1975


    Size :

    39 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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