Closed-loop traffic control systems can be operated by either Time-of-Day (TOD) mode or Traffic Responsive Plan Selection (TRPS) mode. When properly configured, the TRPS mode has the potential to provide an optimal operation due to its ability to accommodate abnormal traffic conditions such as incidents, special events, and holiday traffic. TRPS mode can also reduce the need for frequent redesign/updates to signal timing plans. To date, there have not been any formal guidelines for selection of robust and optimal TRPS system parameters and thresholds. Consequently, traffic engineers usually revert to the TOD mode of operation for its ease of setup. This report provides a new methodology for robust and optimal selection of TRPS parameters and thresholds. The report presents an innovative framework of TRPS system setup following a comprehensive approach that incorporates a multi-objective evolutionary algorithm and a supervised discriminant analysis. The developed guidelines are presented in simplified tables to facilitate their implementation. Guidelines were verified by using hardware-in-theloop simulations. Compared to just the worst possible solutions encountered during the optimization, the final solution provided a concurrent savings of 53 percent in delay and 19 percent in stops.


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    Title :

    Guidelines for Determination of Optimal Traffic Responsive Plan Selection Control Parameters


    Contributors:
    M. Abbas (author) / N. Chaudhary (author) / G. Pesti (author) / A. Sharma (author)

    Publication date :

    2005


    Size :

    104 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





    Designing Optimal and Robust Traffic Responsive Plan Selection Control

    M. Abbas / N. Chaudhary / G. Pesti et al. | NTIS | 2005



    Multiobjective Plan Selection Optimization for Traffic Responsive Control

    Abbas, M. M. / Sharma, A. | British Library Online Contents | 2006


    Configuration Methodology for Traffic-Responsive Plan Selection

    Abbas, Montasir M. / Chaudhary, Nadeem A. / Pesti, Geza et al. | Transportation Research Record | 2005