A two-lane highway lane-closure work zone is a unique work-zone type because of its traffic impact. When one lane of traffic is blocked, it is necessary to implement a traffic control strategy to effectively serve bidirectional traffic. In the sense that the right of way is allocated between two directions sequentially, traffic control at two-lane highway work zones is similar to signalized intersection traffic control. In order to analyze the problem, this study proposes two primary methodologies: (1) mathematical capacity and delay functions based on signalized intersection theory, and (2) a microsimulation model calibrated using field observed data. After fine-tuning the parameters, the mathematical functions were able to estimate delays with reasonable accuracy. The models developed in this study were applied in the optimization of a two-lane highway lane-closure work-zone control management plan. The resultant delay-capacity diagrams indicate that for pretimed control, roadway capacity should be maintained at a slightly higher level than the traffic demand, whereas the dynamic traffic control scheme is able to achieve lower delay results than the optimal pretimed signal control.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Capacity Modeling and Control Optimization for a Two-Lane Highway Lane-Closure Work Zone


    Contributors:
    Zhu, Wenbo (author) / Li, Zhibin (author) / Ash, John (author) / Wang, Yinhai (author) / Hua, Xuedong (author)


    Publication date :

    2017-09-18




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown



    Work Zone Optimization for Two-Lane Highway Maintenance Projects

    Chen, Chun-Hung / Schonfeld, Paul | Transportation Research Record | 2004


    Work Zone Lane Closure Analysis Model

    R. G. Batson / D. S. Turner / P. S. Ray et al. | NTIS | 2009



    Freeway Work Zone Lane Capacity

    A. Drakopoulos / T. Notbohm / A. Dehman | NTIS | 2009


    Estimating Interstate Highway Capacity for Short-Term Work Zone Lane Closures

    Sarasua, Wayne A. / Davis, William J. / Chowdhury, Mashrur A. et al. | Transportation Research Record | 2006