This paper presents a simulation-based methodology for examining the propagation and dissipation of crash risks caused by different intensities of disturbances. A modified cellular automata model is developed and validated based on survey data to simulate saturated traffic on the Pacific Motorway (Helensvale section) in Queensland. Two risk indices, individual risk and societal risk, are proposed based on the time-to-collision notion, representing the risk from distinct perspectives. The societal risk is found to be parabolically related to the intensity of the disturbance. This relationship might provide a solution for estimating crashes on saturated freeways.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Propagation and dissipation of crash risk on saturated freeways


    Beteiligte:
    Kuang, Yan (Autor:in) / Qu, Xiaobo (Autor:in) / Wang, Shuaian (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2014-09-02


    Format / Umfang :

    12 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Spatiotemporal Variation of Risk Preceding Crash Occurrence on Freeways

    National Research Council (U.S.) | British Library Conference Proceedings | 2005


    Novel Crash Surrogate Measure for Freeways

    Kuang, Yan / Yu, Yang / Qu, Xiaobo | ASCE | 2020


    Development of a crash risk index to identify real time crash risks on freeways

    Xu, Chengcheng / Liu, Pan / Wang, Wei et al. | Online Contents | 2013


    Analysis of Crash Precursors on Instrumented Freeways

    Lee, Chris / Saccomanno, Frank / Hellinga, Bruce | Transportation Research Record | 2002


    Development of a crash risk index to identify real time crash risks on freeways

    Xu, Chengcheng / Liu, Pan / Wang, Wei et al. | Springer Verlag | 2013