This paper develops and analyses a model for time allocation on in-home and out-of-home activities, including the generated travel. The model uses utility maximisation approach, where the utility depends on activity type, duration, location and frequency of the activity. The complexity of the model and problems with parameter estimation lead to the use of a simplified version of the model. This simplification incorporates one class of out-of-home activity types and the dependency on the location is somewhat weakened. Two approaches of defining the utility function are considered, which will be compared. For both model approaches the impact of changes in exogenous variables is analysed. The comparison is made how both models The comparison is made how both models show what happens with the amount of generated travel if the total time budget increases, for example by working less hours. But also the consequences of an increase in average travel speed is analysed. A discussion about the usefulness of this model is given. (A)
Abstract