The highway safety evaluation method based on empirical Bayes is put forward in order to make quantitative analysis of the influence of variable speed system on expressway traffic accidents. A control group and a reference group are introduced, with the empirical Bayes model to predict the number of traffic accidents in the facilities group without variable speed limit signs being installed, then to determine the rate drop in traffic accidents after the installation of variable speed limit signs, and to avoid the problem of accident data of mean reversion. Based on the data of the 476 traffic accidents of Xibao Highway and Baohan Highway in Shaanxi Province, the case analysis results show that the traffic accident rate decreased by about 32% on average with the installation of a variable speed system. The highway safety evaluation methods are more persuasive than the before-and-after evaluation method.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Safety Evaluation Effect of Variable Speed-Limit Control System Based on the Empirical Bayesian Model


    Beteiligte:
    Ding, Cheng (Autor:in) / Gou, Chennan (Autor:in)

    Kongress:

    17th COTA International Conference of Transportation Professionals ; 2017 ; Shanghai, China


    Erschienen in:

    CICTP 2017 ; 5038-5045


    Erscheinungsdatum :

    2018-01-18




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Full Bayesian Before-After Analysis of Safety Effects of Variable Speed Limit System

    Pu, Ziyuan / Li, Zhibin / Jiang, Ying et al. | IEEE | 2021


    Variable Speed Limit Control Based on Extended Link Transmission Model

    Hajiahmadi, Mohammad / Corthout, Ruben / Tampère, Chris et al. | Transportation Research Record | 2013



    Speed violation control system of variable speed limit zone

    PARK JUNG HOON / KIM JOON SEOP / KWON DO HEE | Europäisches Patentamt | 2023

    Freier Zugriff

    A Probe-Based Variable Speed Limit System

    Kattan, Lina / Khondaker, Bidoura / Derushkina, Olesya et al. | Taylor & Francis Verlag | 2015