This study examines traffic behavior in the vicinity of a freeway bottleneck, revisiting commonly held assumptions and uncovering systematic biases that likely have distorted empirical studies of bottleneck formation, capacity drop, and the fundamental relationship (FR). This simulation-based study examines an on-ramp bottleneck using Newell's lower order car following model with a driver relaxation factor added for the vehicles that enter or are immediately behind an entering vehicle (termed 'affected vehicles'). The affected vehicles will tolerate a truncated headway for a little while after an entrance but slowly relax back to their preferred speed-spacing relationship. All other vehicles remain on their preferred speed-spacing relationship throughout.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Traffic Behavior at Freeway Bottlenecks


    Contributors:
    B. Coifman (author) / S. Kim (author)

    Publication date :

    2014


    Size :

    53 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Some traffic features at freeway bottlenecks

    Cassidy, Michael J. | Online Contents | 1999


    Reconsidering Freeway Bottlenecks

    Walters, Carol H. / Cooner, Scott A. / Ranft, Stephen E. | Transportation Research Record | 2005


    Flow Breakdown at Freeway Bottlenecks

    Banks, James H. | Transportation Research Record | 2009


    Systematic Identification of Freeway Bottlenecks

    Chen, Chao / Skabardonis, Alexander / Varaiya, Pravin | Transportation Research Record | 2004


    Systematic Identification of Freeway Bottlenecks

    Chen, Chao | Online Contents | 2004