Browsing by Author "MARCOTTE, P"

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    OPERATORS-USERS EQUILIBRIUM-MODEL IN A PARTIALLY REGULATED TRANSIT SYSTEM
    (OPERATIONS RESEARCH SOC AMER, 1992) FERNANDEZ, E; MARCOTTE, P
    We present two formulations of a model for finding equilibrium passenger and operator flows in a partially regulated transit system where bus operators are free to choose the routes on which they offer public transport services. The transit fares are assumed fixed and known. The model offers a detailed representation of the transit system network and of the transit users behavior. Congestion effects are also considered as a consequence of the operation of cars and buses over a common road network. Two algorithmic solution approaches are investigated.
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    SOLUTION APPROACHES TO THE BUS OPERATOR PROBLEM
    (PERGAMON-ELSEVIER SCIENCE LTD, 1993) FERNANDEZ, JE; MARCOTTE, P; MONDSCHEIN, S; VERA, J; WEINTRAUB, A
    We study urban traffic equilibrium involving three classes of agents: car users, bus users or passengers and bus operators. A partially unregulated transit system is assumed, where bus fares are exogenously determined by municipal or transportation authorities, but bus operators are allowed to choose the routes where they offer service. The paper deals specifically with the bus operators submodel, for which several algorithms are proposed to find equilibrium solutions. Convergence properties of the proposed algorithms are analyzed and computational results, on both small test networks and the Santiago de Chile urban transit network, are reported. Various methods to deal with the problem posed by limited bus capacities are discussed.