This paper proposes a multiclass, multidelay stochastic user equilibrium model with elastic demand (MC-MDSUE-ED) that explicitly considers both systematic delay and accidental delay in the route choice decision process. This new model hypothesizes that for each user class and each origin–destination (O-D) pair, no traveler can reduce his or her “multi-delay travel time,” defined as the systematic delay plus accidental delay, by unilaterally changing paths. The actual travel demand for each user class between each O-D pair satisfies its elastic demand function. Travel time budget and robust optimization theory are used to compute the systematic delay and accidental delay, respectively. The MC-MDSUE-ED conditions compose a cobweb model. A self-adaptive bisection algorithm that converts the problem with elastic demand to a series of problems with fixed demand was developed for solving the cobweb model. A path-based quasi method of successive averages was used to solve the MC-MDSUE model with fixed demand. Numerical examples illustrate the essential ideas of the proposed model and the applicability of the proposed solution algorithm.


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    Title :

    Multiclass Stochastic User Equilibrium Model with Elastic Demand


    Subtitle :

    Considering Systematic and Accidental Delays


    Additional title:

    Transportation Research Record


    Contributors:
    Sun, Chao (author) / Cheng, Lin (author) / Zhu, Senlai (author) / Chu, Zhaoming (author)


    Publication date :

    2015-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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