Vehicles form platoons at the exit point of a given traffic signal, which will disperse while they progress along the link towards the next downstream traffic signal. The platoons may disperse either more quickly or slowly depending on the actual road geometric and traffic conditions between the two adjacent intersections of interest. The adequate modeling and description of the platoon dispersion behavior ultimately affect the quality of the coordinated traffic signal timings. At present, the most widely used modelng method of platoon dispersion is the TRANSYT's macroscopic platoon dispersion model in which the determination of its major parameters is based on the empirical values. This report presents a methodology for calibrating the platoon dispersion parameters in the TRANSYT's platoon dispersion model, which is based on a statistical anaysis of link travel time data rather than more traditional goodness-of-fit tests between the observed and the projected vehicles' progression patterns.


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    Title :

    Real-Time Calibration of Platoon Dispersion Model to Optimize the Coordinated Traffic Signal Timing in ATMS Networks


    Contributors:
    L. Yu (author)

    Publication date :

    1999


    Size :

    64 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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