Abstract
The purpose of this research is to explain the influence of the procedure simplification of TFP (Travel Feedback Program) on attitude and behavior modification. In the TFP which was put into practice behavioral plans based on the diary data for one week were made. We compare the influence of the behavioral plan from one week data with one day data. In a field experiment (N=106) users of private automobiles in Osaka city monitored their travel behavior and psychological factors. Effects on travel behavior on weekdays and attitudes turned out to be presence. Therefore, it became clear that appling diary data collected in PT survey data to TFP is effective in the reduction of car use.
