A methodology and its application to measure total, recurrent, and nonrecurrent (incident related) delay on urban freeways are described. The methodology used data from loop detectors and calculated the average and the probability distribution of delays. Application of the methodology to two real-life freeway corridors in Los Angeles, California, and one in the San Francisco, California, Bay Area, indicated that reliable measurement of congestion also should provide measures of uncertainty in congestion. In the three applications, incident-related delay was found to be 13% to 30% of the total congestion delay during peak periods. The methodology also quantified the congestion impacts on travel time and travel time variability.


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    Title :

    Measuring Recurrent and Nonrecurrent Traffic Congestion


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    2003-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Measuring Recurrent and Nonrecurrent Traffic Congestion

    Skabardonis, Alexander | Online Contents | 2003


    Measuring Recurrent and Nonrecurrent Traffic Congestion

    Skabardonis, A. / Varaiya, P. / Petty, K. F. et al. | British Library Conference Proceedings | 2003



    Methodology for Measuring Recurrent and Nonrecurrent Traffic Congestion

    Dowling, Richard / Skabardonis, Alexander / Carroll, Michael et al. | Transportation Research Record | 2004


    Methodology for Measuring Recurrent and Nonrecurrent Traffic Congestion

    Dowling, R. / Skabardonis, A. / Carroll, M. et al. | British Library Conference Proceedings | 2004