Abstract
A model system that represents the effects that transportation control measures have on a commuter's daily activity patterns is presented. A commuter's daily activity is defined in terms of time use and trip frequency. These variables are contained as the engenous variables of the model system, which is specified as a structural equations model system. The parameters of the model system are estimated using activity diary data. The coefficient estimates have logically expected signs, and the fit of its trip frequency equations is better than that of a model which does not consider time use. As examples of policy analysis, the effects of commuting time or work schedules on daily activity patterns are estimated using the model system.
