Traffic flow mobility on expressway plays an important role in urban development. With the emergent technologies, connected vehicles, including both connected automated vehicles (CAVs) and connected regular vehicles (CRVs), are equipped with connectivity features to improve efficiency of urban expressway in a mixed traffic scenario. Existing research indicates that without targeted management, the integration of CAVs and CRVs into regular vehicles (RVs) traffic can lead to a series of congestion issues. A potential solution lies in the implementation of dedicated lanes, each designated for specific vehicle types, which could alleviate traffic flow complications. Therefore, this paper proposes a dynamic optimal lane management strategy for multi-lane mixed traffic urban expressway, aimed at maximizing the whole discharge flow. To begin with, we present an analytical method to mathematically derive discharge flow of each lane type including mixed traffic lane, CAV/CRV dedicated lane, and RV dedicated lane, from the perspective of both traffic demand and traffic capacity. Then, taking a three-lane mixed traffic urban expressway as an application, we conduct a numerical analysis of the dynamic optimal lane management strategy, based on comparisons among eight distinct strategies, under varying factors of traffic demands, penetration rates of CAVs and CRVs, and allocation proportions of vehicles upstream assigned to mixed traffic lanes. The results validate the effectiveness of the analytical method proposed for lane management strategies. It also indicates that the aforementioned system factors have significant impacts on the dynamic optimal lane management strategy.

    • Propose an analytical method for dynamic optimal lane management strategy on multi-lane mixed traffic urban expressway.

    • The dynamic optimal lane management strategy can maximize discharge flow of mixed traffic with bi-class connected vehicles.

    • Conduct numerical analysis to validate the effectiveness of the proposed analytical method.


    Access

    Download


    Export, share and cite



    Title :

    Dynamic optimal lane management strategy for multi-lane urban expressway with bi-class connected vehicles


    Additional title:

    Urban Lifeline


    Contributors:
    Qin, Yanyan (author) / Liu, Changqing (author) / Xie, Lulu (author) / Tang, Honghui (author)

    Published in:

    Publication date :

    2024-12-18




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






    Discretionary Lane Change Model for Intelligent Connected Vehicles on Expressway

    Zhou, Shu-Tong / Zhang, Jian / Li, Lin-Heng et al. | ASCE | 2019



    Real-time optimal configuration method for lane resources of multi-lane expressway

    XI GUANGHENG / WEI JUN / LI XIAOBAI et al. | European Patent Office | 2015

    Free access

    A Lane-Based Congestion Pricing Model for Expressway Toll-Lane Management

    Hu, Shou-Ren / Chu, Chih-Peng / Wu, Ting-Wei | TIBKAT | 2020