Freeway service patrols (FSPs), classified as part of intelligent transportation systems, are programs that use roving vehicles to patrol congested and high-incident sections of freeways; they help to smooth traffic flow by aiding stranded motorists and assisting in incident clearance. Many major urban areas currently have patrols, and most medium-sized urban areas are following suit. The success of FSPs has resulted in frequent requests for service expansion. However, the decision on where to put the next patrol is becoming more difficult because an assessment of greatest need typically indicates that high-priority areas already have the service, whereas the possible effects of the service are often indistinguishable on lower-priority facilities. A new approach was developed to help determine the most beneficial locations for patrol deployment by using expanded placement criteria. North Carolina was used as a case study. Analysis of three incident and crash indexes was combined with spatial analysis, incident type distributions, average hourly freeway traffic volumes, and incident delay estimations to identify, evaluate, and compare candidate facilities for FSP expansion. Results of the research were incorporated into a decision support tool that allows easy planning and operational assessment of candidate sites by comparing performance values between sites, modeling the effect of FSPs, and estimating their key potential benefits. By using the tool, decision makers can quickly assess the needs of different facilities and make an informed, cost-effective decision on where to implement the next service patrol.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Method for Priority-Ranking and Expanding Freeway Service Patrols


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:


    Publication date :

    2004-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Guidelines for Establishing Freeway Service Patrols

    Fenno, D. / Ogden, M. / Morris, M. et al. | British Library Conference Proceedings | 1996


    An economic evaluation of freeway service patrols

    Levinson, D. / Parthasarathi, P.K. | IEEE | 2001


    Freeway Service Patrols: A State of the Practice

    Fenno, David W. | Online Contents | 1998


    An Economic Evaluation of Freeway Service Patrols

    Levinson, D. / Parthasarathi, P. K. / IEEE | British Library Conference Proceedings | 2001