Capacity drop at congested freeway bottlenecks is well known with a lot of field observations and accounts for severe performance degradation of road infrastructure. This paper addresses freeway ramp metering and mainstream traffic flow control (MTFC) at active bottlenecks, with an aim of avoiding capacity drop. A special attention was paid to the effects of capacity drop on the performance of control measures. Via mathematical analyses, it was first shown that the significance and usefulness of the control measures are justified by the presence of capacity drop in field. This was then verified via macroscopic simulation studies, with ramp metering, MTFC, and their integration formulated in a framework of coordinated and integrated optimal control. It was also demonstrated that an appropriate usage of the control measures can effectively prevent the activation of potential bottlenecks on freeways and hence avoid capacity drop there.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Preventing Freeway Capacity Drop via MTFC and Ramp Metering


    Contributors:
    Yu, Xianghua (author) / Zhang, Siyu (author) / Wang, Yibing (author)


    Publication date :

    2019-10-01


    Size :

    1250080 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Ramp metering and freeway bottleneck capacity

    Zhang, Lei | Online Contents | 2010


    Breakdown-Related Capacity for Freeway with Ramp Metering

    Persaud, Bhagwant | Online Contents | 2001


    Breakdown-Related Capacity for Freeway with Ramp Metering

    Persaud, Bhagwant / Yagar, Sam / Tsui, David et al. | Transportation Research Record | 2001


    Breakdown-Related Capacity for Freeway with Ramp Metering

    Persaud, B. / Yagar, S. / Tsui, D. et al. | British Library Conference Proceedings | 2001


    Freeway Optimization Utilizing Ramp Metering

    Bieberitz, J. A. / Institute of Transportation Engineers | British Library Conference Proceedings | 1994