Nonrecurrent congestion on urban roads may cause overflow, possibly leading to gridlock at intersections. Signal control is one of the most important measures to prevent such phenomena. For nonrecurrent congestion with uncertain bottleneck capacity, however, existing signal control methods have mainly adopted the strategy of cutting off the green signal of the overflow movement while the release priority of green time has not been considered. Consequently, the green time allocated to overflow movements is too long, aggravating overflow and congestion. Therefore, a signal control method is proposed to prevent overflow caused by uncertain bottleneck capacity. The proposed method extends existing real-time adaptive signal control to explicitly consider the risk of queue spillover. When an overflow risk is detected, the green times of overflow movements will be reassigned using fuzzy control to determine the release priority depending on the queue length and red time. Numerical studies were conducted for two scenarios with different downstream bottleneck capacities. The results demonstrate that the proposed method not only outperforms existing methods in respect of intersection efficiency but also reduces the risk of overflow. The proposed method achieves a 27.7% to 33.8% reduction in the maximum queue length of overflow movements compared with a traditional adaptive signal control method and a 10.9% to 11.0% decrease compared with a modified signal control method with a cutting-off strategy. The sensitivity analysis indicates that the average delay resulting from the proposed method is 51.1% and 18.0% less than the delays resulting from the traditional and modified methods, respectively.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Adaptive Signal Control for Overflow Prevention at Isolated Intersections Based on Fuzzy Control


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:
    Yao, Tianyu (author) / Zhang, Cheng (author) / Zhao, Jing (author) / Gupta, Ankit (author) / Mondal, Satyajit (author)


    Publication date :

    2023-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Signal Control for Oversaturated Intersections Using Fuzzy Logic

    Zhang, L. / Li, H. / Prevedouros, P.D. et al. | British Library Conference Proceedings | 2008


    Signal Control for Oversaturated Intersections Using Fuzzy Logic

    National Research Council (U.S.) | British Library Conference Proceedings | 2005



    Intersection overflow prevention signal optimization control method based on networked vehicle data

    CHO JUNG / YAO TIANYU / ZHANG CHENG et al. | European Patent Office | 2023

    Free access