A COMBINED RP/SP ROUTE CHOICE STUDY BETWEEN EXPRESSWAY AND ORDINARY ROADS BY USING ROUTE CHOICE SURVEY'S DATA

Abstract

In order to solve the traffic congestion problem, it is decided to convert some of the traffic from ordinary road to expressway with discounted toll. A route choice survey was conducted to freight and production companies to collect two different types of data; Revealed Preference (RP) and Stated Preference (SP). Estimation was done in four steps; segmentation model, a route choice model with RP data and a convert model with SP data. Finally, RP and SP data were combined in linear and non-linear models. It is identified that VOT follows a decreasing curve by increasing travel time.