Development of a GPS/GPRS prompted-recall solution for longitudinal driving behaviour studies

This paper details the development of a GPS/GPRS data collection solution for a longitudinal (twelve week) study of driving behaviour in Sydney, investigating behavioural responses to variable rate charging. The study calls for data to be regularly downloaded to check the quality of data as it is being collected and provide the basis for a web-based prompted recall (PR) survey in which participants can view their trips, confirm details and provide information on who was driving, number of passengers and trip purpose. Following details of the technological setup, we detail the data processing issues involved and the development of the PR survey. Pilot testing of the approach on thirty motorists demonstrates that contrary to popular belief, data of this nature can be collected for several weeks with little respondent burden at high levels of accuracy