TRAVEL DEMAND MODEL SYSTEM FOR THE INFORMATION ERA

The emergence of new information technologies and recent advances in e xisting technologies have provided new dimensions for travel demand de cisions. In this paper we propose a comprehensive travel demand modeli ng framework to identify and model the urban development decisions of firms and developers and the mobility, activity and travel decisions o f individuals and households, and to develop a system of models that c an be used by decision makers and planners to evaluate the effects of changes in the transportation system and development of information te chnologies (e.g. various tele-commuting, tele-services and Intelligent Transportation Systems). The implementation of an operational model s ystem based on this framework is envisioned as an incremental process starting with the current ''best practice'' of disaggregate travel dem and model systems. To this end, we present an activity-based model sys tem as the first stage in the development of an operational model syst em.