Work zone capacity values for rural and urban freeways without continuous frontage roads were defined and determined. Data were collected using Nu-Metrics counters and classifiers at 24 work zones in North Carolina. The research included analysis of speed-flow behavior, evaluation of work zone sites based on lane configuration and site location, and determination of the location within the work zone where capacity is lowest. It was shown that the intensity of work activity and the type of study site (rural or urban) strongly affected work zone capacity. The data suggested that the location where capacity is reached is also variable based on the intensity of work. For heavy work in a two-lane to one-lane work zone configuration, the capacity values proposed at the active work area are approximately 1,200 vehicles per hour per lane for rural sites and 1,500 vehicles per hour per lane for urban sites. It is recommended that two distinct volumes be used when queue behavior in a freeway work zone is analyzed. The collapse from uninterrupted flow (designated work zone capacity) and the lower queue-discharge volume both should be considered.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Capacity for North Carolina Freeway Work Zones


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:


    Erscheinungsdatum :

    1996-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Capacity for North Carolina Freeway Work Zones

    Dixon, Karen / Hummer, Joseph / Lorscheider, Ann | Transportation Research Record | 1996


    Capacity for North Carolina Freeway Work Zones

    Dixon, Karen K. | Online Contents | 1996


    New Insights into Freeway Capacity at Work Zones: Empirical Case Study

    Al-Kaisy, Ahmed / Zhou, Miao / Hall, Fred | Transportation Research Record | 2000


    New Insights into Freeway Capacity at Work Zones: Empirical Case Study

    Al-Kaisy, A. / Zhou, M. / Hall, F. et al. | British Library Conference Proceedings | 2000