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  • Propagation and dissipation of crash risk on saturated freeways

    Author(s)
    Kuang, Yan
    Qu, Xiaobo
    Wang, Shuaian
    Griffith University Author(s)
    Qu, Xiaobo
    Kuang, Yan
    Year published
    2014
    Metadata
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    Abstract
    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 ...
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    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.
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    Journal Title
    Transportmetrica B: Transport Dynamics
    Volume
    2
    Issue
    3
    DOI
    https://doi.org/10.1080/21680566.2014.930675
    Subject
    Civil engineering
    Transport engineering
    Urban and regional planning
    Publication URI
    http://hdl.handle.net/10072/63750
    Collection
    • Journal articles

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