ANALYSES OF PANEL DATA ---ANALYSES OF PANEL DATA, PROCEEDINGS OF THE ROUND TABLE CONFERENCE ON THE LONGITUDINAL TRAVEL STUDY, THE HAGUE, MAY 14-15, 1987

Six batches of data have been collected in connection with a longitudinal travel study that has been carried out in the Netherlands since March 1984. This research has two main objectives: (1) to record and analyze changes in travel patterns of the Dutch population; (2) to determine the impact of changes in the fare structure on travel behaviour by separating out these effects from those of other influences, and to assess the impact of such changes on individual segments of the population. The aim of the present paper is to present a general overview of the type of analysis carried out, with particular attention being paid to: (a) analysis of problems arising from characteristic features of the sampling techniques used and the nature of the data collected; (b) description of changes that have taken place in travel behaviour and the respective differences found between specific sections of the populations; (c) the development of travel patterns and the changes in personal and household circumstances in relation to external factors such as fares policy and fuel prices; (d) a number of aspects of specific relevance to policy makers; and (e) some topics of methodological interest. For the covering abstract of the conference see IRRD 818179.