A MICROECONOMIC TRIP GENERATION EQUILIBRIUM MODEL

Some research work is presented, the objective of which is to develop a framework for studying trip generation, to obtain a better understanding of people's mobility through an operational model. Factors of special interest here are the roles of the transport-land-use system and of individuals' socioeconomic characteristics in relation to travel demand. This paper develops a theoretical framework to study trip generation at an individual level within an urban context. It uses mathematical models for activities demand, travel demand, and trip generation. The theoretical approach states that trip generation (1) depends on decisions assigning times to all activities; (2) is a transport cost function; (3) is determined by individuals' socioeconomic characteristics and valuations of quality, activity times, and travel times; and (4) varies according to the tendency and possibility to chain activities. The approach negates some of the assumptions used in traditional trip-generation models. The paper's discussion of the relation between the trip generation framework and accessibility shows that there is a microeconomic link between the trip generation and transport-land-use systems, that can be applied to develop better roles of urban development. For the covering abstract, see IRRD E101013.