The Evaluation of Travel Time Saving on Urban Expressway

Abstract

The objective of this study aims to evaluate the travel time saving on the expressway by comparing the travel time between using expressway and ordinary road at the same origin and destination which is similar route in terms of physical characteristics and expressway user be able to made an alternative route. The data collection both on expressway and ordinary road using the floating-car technique and collect the trajectory data with GPS data logger. The comparison between 4 sections of urban expressway and ordinary road in morning and evening rush hour period have been used as study area consisting of Ramindra-Rama 9 and Ngamwongwan-Yommarat in morning rush hour and Rama 9-Ramindra and Phaholyothin-Srinagarindra in evening rush hour. After comparing the travel time between using expressway and ordinary road, the result shows that the using of expressway in rush hour period tends to save the travel time more than 40% comparing with the ordinary road. The result can be concluded that the performance of traffic management on the expressway especially during rush hour is efficient enough to operate the exceeded demand in such period. The contribution of this study will be extended to assess the efficiency for other expressway routes in the future.