In this paper, we present an equilibrium traffic assignment model considering uncertainties in traffic demands. The link and route travel time distributions are derived based on the assumption that OD traffic demand follows a log-normal distribution. We postulate that travelers can acquire the variability of route travel times from past experiences and factor such variability into their route choice considerations in the form of mean route travel time. Furthermore, all travelers want to minimize their mean route travel times. We formulate the assignment problem as a variational inequality, which can be solved by a route-based heuristic solution algorithm. Some numerical studies on a small test road network are carried out to validate the proposed model and algorithm, at the same time, some reasonable results are obtained.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Equilibrium Assignment Model with Uncertainties in Traffic Demands



    Published in:

    Applied Mechanics and Materials ; 253-255 ; 1751-1757


    Publication date :

    2012-12-13


    Size :

    7 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Equilibrium Assignment Model with Uncertainties in Traffic Demands

    Kuang, A.W. / Huang, Z.X. | British Library Conference Proceedings | 2013



    Equilibrium assignment algorithms : comparison of some algorithms for equilibrium traffic assignment with fixed demands

    Arezki, Y. / University of Leeds, Institute for Transport Studies | TIBKAT | 1986


    Traffic : an equilibrium traffic assignment program

    Nguyen, Sang / James, Linda | TIBKAT | 1978