The entrance and exit (E&E) of a tunnel are typical crash prone segments. Thus, this paper is focused on exploring the influence range of the traffic risk at the tunnel E&E. Furthermore, the accident spatial distribution characteristics of the E&E are also studied to discover the accident mechanism. Driving risk characteristics of the E&E segments have been studied by analyzing the traffic speed/visual adaptability and accident distribution statistics. The study was carried out on the 2,552 traffic accidents of 41 tunnels of different lengths in Guangdong Province. Segments 200 m before and after the E&E were found the influence range of the traffic risk at the tunnel E&E. Furthermore, cubic polynomial curve was found suitable to describe the spatial distribution law of the traffic risk at tunnel E&E. The research results can provide a basis for the safety optimization design and safety management of tunnel openings.


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    Titel :

    Influence Range and Spatial Distribution Characteristics of Crashes at the Tunnel Entrance and Exit


    Beteiligte:
    Cai, Jing (Autor:in) / Gan, Wangpan (Autor:in) / Li, Xinwei (Autor:in) / Wang, Xiaofei (Autor:in)

    Kongress:

    20th COTA International Conference of Transportation Professionals ; 2020 ; Xi’an, China (Conference Cancelled)


    Erschienen in:

    CICTP 2020 ; 4776-4784


    Erscheinungsdatum :

    2020-12-09




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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