Variable Speed Limit Sign (VSLS) Systems enable speed limits to be changed dynamically in response to traffic conditions so that traffic incidents can be reduced significantly on freeway work zones. In this paper, we examined how many and where VSLS are to be placed and the speed limits to be set and proposed a bilevel programming model to perform this decision making operation. The appropriate speed limits and deployments of VSLS were got by case study, and they were analyzed by a simulation to prove the empirical features of traffic breakdown at freeway work zones. Then the results of model comparison and simulation evaluation illustrate that the proposed method outperforms existing models in terms of maximizing information benefit and minimizing average queue length, total delay, and total stop frequency on the freeway work zone.


    Access

    Download


    Export, share and cite



    Title :

    Variable Speed Limit Signs: Control and Setting Locations in Freeway Work Zones


    Contributors:
    Wei Wang (author) / Zeyang Cheng (author)


    Publication date :

    2017




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Toward Intelligent Variable Message Signs in Freeway Work Zones: Neural Network Model

    Hooshdar, S. / Adeli, H. | British Library Online Contents | 2004




    Locating Speed Limit Signs for Freeway Tunnel Entrance and Exit

    Bai, Han / Yu, Lemei / Zhang, Tong et al. | ASCE | 2018