Before and After Analysis of New Subway Service

Investigation of Effectiveness of Stated Preference Data

Abstract

This paper presents the effectiveness of stated preference (SP) data. We compared SP data and revealed preference (RP) data by using three methods. Our Experience was as follows. First of all, at the macro level SP data found overstated the use of the new subway than RP data. Secondly at individual level 70-80% of person’s SP data coincided with RP data. Thirdly where choice context became radically different by a transport project. The models based on SP data were found better than the models based on RP data in predicting future travel behavior.