This study proposes a cellular automaton model incorporating the platoon size of connected automated vehicles (CAVs) to examine their impact on mixed traffic flow. First, vehicles are classified into three modes, human-driven vehicles (HDVs), adaptive cruise control (ACC), and cooperative adaptive cruise control (CACC), by considering the characteristics of the car-following behavior. Second, the CACC is further subdivided into interplatoon and intraplatoon car-following modes due to the limitations of the platoon size of CAVs. Then, cellular automaton rules are developed for each of these four modes. Finally, numerical simulation experiments are conducted to analyze the influence of the penetration rate and platoon size of CAVs on mixed traffic flow. The results demonstrate that (1) the simulation results closely align with the theoretically derived outcomes, with an error rate of only 0.46% at a penetration rate of 100%; (2) when the penetration rate of CAVs reaches 100%, increasing the platoon size further enhances the traffic capacity; and (3) the optimal platoon size is determined to be seven CAVs under moderate traffic density.


    Access

    Download


    Export, share and cite



    Title :

    Modeling the Effect of the Platoon Size of CAVs on Mixed Traffic Flow: A Cellular Automaton Method


    Contributors:
    Yangsheng Jiang (author) / Zhiyuan Yi (author) / Guosheng Xiao (author) / Hongwu Li (author) / Zhihong Yao (author)


    Publication date :

    2023




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Virtual Platoon based CAVs Cooperative Driving at Unsignalized Intersection

    Cong, Xiangyue / Yang, Bo / Gao, Fengkun et al. | IEEE | 2022



    Two Dimensional Cellular Automaton Model of the Mixed Traffic Flow for Urban Traffic

    Yang, Li ;Hu, Jun Hui ;Kong, Ling Jiang | Trans Tech Publications | 2012


    Analyzing Traffic Flow by a Cellular Automaton

    Emmerich, H. / Rank, E. / German Supercomputing Center HLRZ | British Library Conference Proceedings | 1996


    CAVs Coordination at Intersections in Mixed Traffic via Feasibility-Enforcing ADMM

    Faris, Muhammad / Zanon, Mario / Falcone, Paolo | IEEE | 2024