The development of a travel demand model which takes into account the fact that travel is a derived demand, is described. Travel as such does not supply utility, but is a necessary complement to the performance of activities at different places at different times. Therefore, to model travel behaviour adequately, one needs insight into the local activity pattern of individuals. For this purpose an extremely suitable survey is available in the netherlands: the activity diary survey of 1975 (repeated in 1980). using this survey among 1300 people about activity time allocation across a full week activity choice models have been developed. This has been done for three groups of persons: working men, housewives, and working women, and for the workweek (monday till friday). For each quarter hour of an average workday the model predicts the distribution of a group of persons among activities and locations. By comparing the distribution for each quarter hour with that of the previous quarter hour the number of trips made can be derived.
Samenvatting