Abstract
A commuter decides his travel behaviour related to out-of-home, nonwork activities under the constraints on an usable time. The usable time is assumed to be scheduled based on the relation between the obligatory time factors associated with work and such other time factors as domestic activities time. business hours of store, appointed time for meeting and so on. This assumption is examined through the analysis of the decision making in travel behaviours related with the time factors focused on difference in commuter's attribute and purpose of nonwork activity. In this analysis, the travel behaviours are explained about whether or not to participate in out-of-home, nonwork activities and when or how to make their trip.
