In recent years, left-turn waiting areas were increasingly used to improve traffic efficiency at signalized intersections in China. This paper evaluated the operational impacts of left-turn waiting areas at dual left-turn lanes at signalized intersections. An analytical model was proposed to estimate the capacity of dual left-turn lanes with waiting areas. Based on the data collected at 12 sites in Nanjing, cross-sectional analysis were conducted to compare the start-up lost time and saturation headways of left-turn passenger cars under four scenarios. The results indicated that outside left-turn lanes provide slightly lower. For both the inside and outside left-turn lanes, the use of left-turn waiting areas did not significantly affect the saturation headways of left-turn passenger cars behind the stop bar. It was found that left-turn waiting areas increased capacity of dual left-turn lanes and the capacity gains would increase with the increase in the size of the left-turn waiting areas.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Evaluating the Operational Impacts of Left-Turn Waiting Areas at Dual Left-Turn Lanes at Signalized Intersections


    Contributors:
    Yang, Zhao (author) / Liu, Pan (author) / Tian, Zong Z. (author) / Wang, Wei (author)

    Conference:

    The Twelfth COTA International Conference of Transportation Professionals ; 2012 ; Beijing, China


    Published in:

    CICTP 2012 ; 350-361


    Publication date :

    2012-07-23




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Evaluating the Operational Impact of Left-Turn Waiting Areas at Signalized Intersections in China

    Yang, Zhao / Liu, Pan / Tian, Zong Z. et al. | Transportation Research Record | 2012



    Lengths of Left-Turn Lanes at Signalized Intersections

    Kikuchi, Shinya | Online Contents | 1993



    Operational Aspects of Exclusive Double Left-Turn Lanes at Signalized Intersections

    Zhou, J. / Shao, C.-Q. / Rong, J. et al. | British Library Conference Proceedings | 2010