This study developed a safety evaluation model of freeway traffic safety facilities based on grey entropy weight clustering. Firstly, a safety evaluation system of freeway traffic safety facility was proposed which includes six aspects. Then, whitenization weight function was defined and weights of indexes were determined by the entropy theory. The grey entropy clustering coefficient was calculated and the safety level of a freeway traffic safety facility was evaluated afterwards. Finally, a case study of a 5.5-km segment of the Yun-Luo freeway was conducted to verify the feasibility and effectiveness of the model.


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    Title :

    Evaluating the Safety Performance of Freeway Traffic Safety Facilities


    Contributors:
    Liang, Qiyu (author) / Wan, Qian (author) / Zheng, Baoli (author) / Yang, Tao (author) / Guo, Yanyong (author)

    Conference:

    14th COTA International Conference of Transportation Professionals ; 2014 ; Changsha, China


    Published in:

    CICTP 2014 ; 2433-2440


    Publication date :

    2014-06-24




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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