Freeway ramp metering systems are being used to alleviate urban freeway congestion. The report presents a methodology for determining the distance requirements for ramp metering for a wide range of traffic volume and freeway geometric conditions. The distance requirement for ramp metering consists of distance required for queue storage and distance required for the freeway merging operation. A queue storage model has been developed to determine distance required for queue storage. The constant acceleration models of linear motion have been used to determine distance required for the freeway merging operation. A methodology for determining the optimal placement of the ramp meter signal has been presented. Guidelines for effecting a trade-off between queue storage and freeway merging distance requirements have also been presented. A sample problem demonstrates the use of the presented methodology.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Distance Requirements for Ramp Metering


    Contributors:
    S. Sharma (author) / C. J. Messer (author)

    Publication date :

    1994


    Size :

    30 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Ramp Metering

    Gordon, Robert | Springer Verlag | 2016


    Ramp Metering Status in California

    Zhongren Wang | DOAJ | 2013

    Free access

    Freeway Ramp Metering: An Overview

    Papageorgiou, M. / Kotsialos, A. | British Library Online Contents | 2002


    Self-Learning Adaptive Ramp Metering

    Rezaee, Kasra / Abdulhai, Baher / Abdelgawad, Hossam | Transportation Research Record | 2013


    Coordinated ramp metering with priorities

    Meshkat, Amir / Zhi, Min / Vrancken, Jos L.M. et al. | Wiley | 2015

    Free access