Proceedings of the Eastern Asia Society for Transportation Studies, Vol.7, 2009 A Dynamic Traffic Analysis Model for the Korean Expressway System Using FTMS Data Jeong Whon, YU Mu Young, LEE Professor Researcher Division of Environmental, Civil Graduate School of Engineering and Transportation Engineering Ajou University Ajou University Suwon, Korea 443-749 Suwon, Korea 443-749 Fax: +81-31-219-1613 Fax: +81-31-219-1613 E-mail:
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[email protected] Abstract: Operation of intelligent transportation system technologies in transportation networks and more detailed analysis give rise to necessity of dynamic traffic analysis model. Existing static models describe network state in average. On the contrary, dynamic traffic analysis model can describe the time-dependent network state. In this study, a dynamic traffic model for the expressway system using FTMS data is developed. Time-dependent origin-destination trip tables for nationwide expressway network are constructed using TCS data. Computation complexity is critical issue in modeling nationwide network for dynamic simulation. A subarea analysis model is developed which converts the nationwide O-D trip tables into subarea O-D trip tables. The applicability of the proposed model is tested under various scenario. This study can be viewed as a starting point of developing deployable dynamic traffic analysis model. The proposed model needs to be expanded to include arterial as well without critical computation burden Key Words: Dynamic, Subarea, FTMS Data 1. INTRODUCTION 1.1 Background of the study Conditions of transportation system change according to the correlation between the physical facilities and the demand, which in turn varies with the passage of time.