Cooperative adaptive cruise control (CACC) has drawn wide attention in recent years for its potential throughput benefit, as it is a promising intermediate technology to the highly connected and automated vehicles. The impact of CACC on multilane highways has been the subject of several studies, but they assumed traffic under a uniform speed limit. Recent research has revealed that traffic performs differently under a differentiated per-lane speed limit (DPLSL) policy with heavy vehicle (HV) restricted lanes. Whether the benefits of CACC still remain under a DPLSL policy has not been explored. This study developed cellular automaton models to incorporate CACC-equipped and non-equipped vehicles (i.e., passenger cars, HVs) on a two-way eight-lane highway with a DPLSL. Results shown throughputs by lane increase up to 78.5% as the CACC car market penetration rate (MPR) rises. Such increases became sharper (i.e., ≥10%) for inner lanes (i.e., HV restricted lanes) and outer lanes after reaching a 40% and a 60% CACC car MPR, separately. Moreover, HVs induced a 1.5% to 15.7% throughput reduction across lanes even under higher CACC car MPRs (i.e., 60%, 80%). This DPLSL policy may cause the lanes to experience a throughput penalty when they are adjacent to lanes with a different speed limit as the MPR of CACC cars rises. Lastly, in traffic with a 60% CACC car MPR, increases are brought further by considering 10% of HV with CACC, especially on those HV non-restricted lanes. The study is helpful for policy makers to further prepare for the prevalence of CACC in the forthcoming years.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Impact of Cooperative Adaptive Cruise Control on a Multilane Highway under a Differentiated Per-Lane Speed Limit Policy


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:
    Xiao, Zhe (Autor:in) / Guo, Xiaoyu (Autor:in) / Guo, Xiucheng (Autor:in) / Li, Yi (Autor:in)


    Erscheinungsdatum :

    2021-06-06




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Impact of cooperative adaptive cruise control on multilane freeway merge capacity

    Liu, Hao / Kan, Xingan (David) / Shladover, Steven E. et al. | Taylor & Francis Verlag | 2018


    Cooperative adaptive cruise control method for lane changing scene

    TIAN YANTAO / NIE GUANGMING / XIE BO et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Cooperative lane control application for fully connected and automated vehicles at multilane freeways

    Khattak, Zulqarnain H. / Smith, Brian L. / Park, Hyungjun et al. | Elsevier | 2019


    Lane Management Techniques for Multilane Freeways

    Yang, Man-juan / Wu, Ke-man / Zhong, Lian-de | ASCE | 2011


    Impact of Choice of Lane on Multilane Flexible Pavement

    Priscilla Ponmani, J. / Nivitha, M. R. | Springer Verlag | 2022