An elevated urban expressway connects to its frontage roads by on/off ramps. Under the expressway, frontage roads, two pairs of on/off ramp terminal and cross streets construct the complex at-grade intersection. One typical complex intersection under the Inner Ring Expressway in Shanghai was selected in this study. The main reason for congestion at this intersection is that traffic movements with different origin-destination (OD) weave within the section from the ramp terminal to the stop-line on the departure legs. To eliminate the weaving operation, lane function was reassigned, and signal timing was redesigned to a five-phase scheme. Simulation tool VISSIM 4.1 was applied to evaluate performance of the new intersection. Simulation results indicated that significant reduction of vehicle delay and queue length in the new scheme.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Traffic Management on an At-Grade Signalized Intersection Connecting to Urban Expressway Ramps


    Contributors:

    Conference:

    Ninth International Conference of Chinese Transportation Professionals (ICCTP) ; 2009 ; Harbin, China


    Published in:

    Publication date :

    2009-07-23




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Traffic Management on an At-Grade Signalized Intersection Connecting to Urban Expressway Ramps

    Long, K. / Zheng, J. / Yang, X. et al. | British Library Conference Proceedings | 2009



    Research on Traffic Management for On-Street Intersection Connecting to Urban Expressway Off-Ramps

    Long, K. / Yang, X. / Zheng, J. et al. | British Library Conference Proceedings | 2008


    Traffic Flow Characteristics of Bottleneck Segment with Ramps on Urban Expressway

    Guan, Y. / Zhu, J. / Zhang, N. et al. | British Library Conference Proceedings | 2009


    Traffic Flow Characteristics of Bottleneck Segment with Ramps on Urban Expressway

    Guan, Yu / Zhu, Jishuang / Zhang, Ning et al. | ASCE | 2009