Effective traffic signal control strategies are critical for traffic management in urban traffic networks. Most existing optimization-based urban traffic control approaches update the traffic signal at regular time instants, where the length of the fixed update time interval is determined based on a trade-off between the computational efficiency and the control performance. Since event-triggered control (ETC) allows for more flexible and more efficient control than conventional time-triggered control by triggering the control action by events, and since it can refrain from redundant optimization while retaining a satisfactory behavior, we use an ETC scheme for traffic light control. In addition, based on the geographically distributed feature of traffic networks, a distributed paradigm is adopted to reduce the computational complexity for the optimization. We propose a distributed threshold-based event-triggered control strategy, where the independent triggering of agents leads to an asynchronous update of traffic signals in the system. The triggered agent then solves a mixed-integer linear programming problem and updates its traffic signals. The proposed approach is evaluated under various traffic demands by simulation, and is shown to yield the best trade-off between control performance and computational complexity compared to other control strategies.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Distributed Event-Triggered Model Predictive Control for Urban Traffic Lights


    Contributors:
    Wu, Na (author) / Li, Dewei (author) / Xi, Yugeng (author) / de Schutter, Bart (author)


    Publication date :

    2021-08-01


    Size :

    2098401 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Event-triggered model predictive schemes for freeway traffic control

    Ferrara, Antonella / Sacone, Simona / Siri, Silvia | Elsevier | 2015



    Distributed model-free adaptive predictive control method for traffic lights at multiple interconnected intersections

    XIA WEIGUO / MEI CHENYI / RU XINFENG et al. | European Patent Office | 2023

    Free access