Average delay per vehicle is the primary measure for determining the level of service at signalized intersections. This performance measure is also a major component in the calculation of average travel speed used to determine the level of service on arterial streets. The most widely used models for estimating delay at signalized intersections are those in Chapters 9 ("Signalized Intersections") and 11 ("Urban and Suburban Arterials") of the Highway Capacity Manual. This research reviewed the literature on models for estimating delay at signalized intersections to identify limitations and formulate revised models to address those limitations. Specific problems that were addressed included the inability to account for actuated-control parameters, oversaturation and variable demand, and metering and filtering by upstream traffic signals. The research team developed a generalized delay model to address these limitations and then validated the generalized model with both field and simulation data. The proposed model is sensitive to actuated-control parameter settings, oversaturation and variable demand conditions, and filtering and metering effects of upstream signals. The proposed model is also a good predictor of delays observed in the field and estimated by microscopic traffic simulation programs for the conditions studied. The generalized delay model is recommended for inclusion in future editions of the Highway Capacity Manual.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Generalized Delay Model for Signalized Intersections and Arterial Streets


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    1997-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Generalized Delay Model for Signalized Intersections and Arterial Streets

    Fambro, D. B. / Rouphail, N. M. / National Research Council; Transportation Research Board | British Library Conference Proceedings | 1997


    Revisiting Delay Model of Signalized Intersections

    Li, L.-J. / Yang, X.-K. / Chen, X.-Y. et al. | British Library Conference Proceedings | 2010


    Delay Variability at Signalized Intersections

    Fu, Liping | Online Contents | 2000


    Delay Variability at Signalized Intersections

    Fu, L. / Hellinga, B. / National Research Council | British Library Conference Proceedings | 2000