Many unsignalized roundabouts with multi-entry-lane and multi-circulating-lane are still used in urban road of China, where the situation of traffic flow running is very complicated, and the calculation of traffic capacity of unsigalized roundabout needs further research. The fact that most entry vehicles only cross outside two circulating lanes is found by studying video data collected at the unsignalized roundabout. On the basis of gap-acceptance theory, theory model for traffic capacity of the unsignalized roundabout with multi-entry-lane and multi-circulating-lane under the multi-vehicle-type mixed traffic flow condition is established by assuming that the headway of circulating vehicles obeys M3 distribution and probability analysis. Furthermore, cross-street pedestrians and non-motor vehicles interference and vehicles on the entry lanes giving way to each other are considered to modify the model. The accuracy of this model is verified by a case study. This paper provides a method for calculating the traffic capacity of unsignalized roundabout with multi-entry-lane and multi-circulating-lane.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Theory Model for Traffic Capacity of Unsignalized Roundabout in Urban Road


    Contributors:
    Pei, Yulong (author) / Fu, Chuanyun (author) / Peng, Ting (author)

    Conference:

    Third International Conference on Transportation Engineering (ICTE) ; 2011 ; Chengdu, China


    Published in:

    ICTE 2011 ; 770-775


    Publication date :

    2011-07-13




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Research on Capacity and Traffic Conditions at Unsignalized Urban Intersections

    Gaca, S. / Chodur, J. / Gondek, S. et al. | British Library Conference Proceedings | 1998


    Self-Organization in Unsignalized Urban Traffic Flow

    Sekiyama, K. / Ohno, T. / Fukuda, T. et al. | British Library Conference Proceedings | 1999



    Roundabout Capacity: Public Road Experiment at Wincheap, Canterbury

    M. C. Semmens / P. J. Fairweather / I. B. Harrison | NTIS | 1980


    Roundabout capacity : public road experiment at Wincheap, Canterbury

    Semmens, Marie C. / Fairweather, P. J. / Harrison, I. B. | TIBKAT | 1980