Variability in vehicle mix necessitates the use of passenger car units (PCU), the widely accepted common measure in the estimation of saturation flow. Previous research works show that PCU for a vehicle is not static, but it varies with the level of interaction among vehicles. This study proposes a methodology based on area occupancy for the estimation of PCU. Number of standard car spaces (Ncs) corresponding to a vehicle category is determined based on area occupancy of subject vehicle category and occupancy time of equivalent homogeneous traffic stream. The variations in dynamic PCU values of vehicles with respect to traffic characteristics, control conditions and approach width are studied and it is found that all the cars in the traffic stream do not have PCU value one. It is also observed that PCU values of all categories of vehicles except small cars exhibit a decreasing trend with increase in its own proportion. In order to facilitate easy and quick estimation of dynamic PCU values, mathematical models are developed incorporating the effect of traffic composition and saturation flow.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Estimation of Dynamic PCU Using the Area Occupancy Concept at Signalised Intersections


    Beteiligte:
    Preethi, P. (Autor:in) / Ashalatha, R. (Autor:in)

    Kongress:

    International Conference on Transportation and Development 2016 ; 2016 ; Houston, Texas



    Erscheinungsdatum :

    20.06.2016




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Pedestrians at signalised intersections

    Pretty, R. L. / Broekstra, B. / Healey, S. et al. | British Library Conference Proceedings | 1994



    Bicycle detection at signalised intersections

    Leschinski, Roland | SLUB | 1994


    Signalised intersections and driver performance

    Triggs, Thomas J. | TIBKAT | 1981


    Motorcycle crash prediction model for signalised intersections

    Quddus, M. A. / Chin, H. C. / Wang, J. et al. | British Library Conference Proceedings | 2001