Applying stated preference methods to investigate effects of traffic information on route choice

This research is exploring the extent to which providing traffic information on VMS affects drivers' route choice behaviour. The information include extra delay and charges. Three different charging regimes were tested. Stated preference(SP) surveys were conducted and route choice logit models were estimated. The results show that, drivers' route choice is affected by length of delay and by road user charges on VMS. The fixed charges may be most likely to induce drivers to change their behaviour. Drivers value delay time more highly and they become increasingly sensitive to delay time as it increases.