This study develops passenger-car equivalents (PCEs) for heavy vehicles at roundabouts. For this task, the movements of cars and heavy vehicles were observed using video records collected from three roundabouts in Vermont; Ontario, Canada; and Wisconsin. The PCE was developed such that the variation in the entry capacity in a various mix of cars and heavy vehicles was minimized. The PCE was also applied to the prediction of the entry capacity using a roundabout capacity model. For the model inputs, the study adjusted the critical headway and the follow-up headway to account for the difference in driver's gap acceptance behavior between cars and heavy vehicles. The result shows that the PCEs for heavy trucks and light trucks are 1.5-2.5 and 1.0-1.5, respectively, at the three roundabouts. In particular, the PCE for light trucks was lower than a default value of 2.0. The result also shows that the established model generally predicted the capacity more accurately when the critical headway and the follow-up headway were adjusted by different weights instead of the same weight (i.e., the default value of the PCE).


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Developing Passenger-Car Equivalents for Heavy Vehicles in Entry Flow at Roundabouts


    Beteiligte:
    Chris Lee (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2015



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :

    Klassifikation :

    BKL:    55.84 Straßenverkehr / 56.24 / 55.84 / 56.24 Straßenbau / 74.75 / 74.75 Verkehrsplanung, Verkehrspolitik
    Lokalklassifikation TIB:    770/7000






    Microsimulation-based passenger car equivalents for heavy vehicles driving turbo-roundabouts

    Orazio Giuffrè / Anna Granà / Sergio Marino et al. | DOAJ | 2016

    Freier Zugriff

    Microsimulation-based passenger car equivalents for heavy vehicles driving turbo-roundabouts

    Giuffrè, Orazio / Granà, Anna / Marino, Sergio et al. | British Library Online Contents | 2016