ADVANCED DEMAND MODELLING FOR ADVANCED TRANSPORT SYSTEMS

This paper reviews the linkage between transport demand and supply modeling and presents a conceptual model of transport choice as representing the key elements in the behavioral modeling of transport demand. The conceptual model presented incorporates such features as the consideration of traveler attitudes and values, the perception and evaluation of transport system attributes, the role of constraints on choice, the generation of choice sets and attribute sets, the composite evaluation of the attributes of alternatives, the translation of measures of overall worth of alternatives into measures of behavioral intent or preference for such alternatives and the role of choice inertia in mitigating against the expression of behavioral intent in the form of actual choices.