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A Study on the Accuracy of Traffic Demand Forecasting in National Highway  

Jeon, Woo-Hoon (한국건설기술연구원)
Lim, Kang-Won (서울대학교 환경대학원)
Cho, Hye-Jin (한국건설기술연구원)
Publication Information
International Journal of Highway Engineering / v.12, no.4, 2010 , pp. 61-70 More about this Journal
Abstract
The purpose of this study is to analyze the accuracy of traffic volume forecast by comparing an estimated to real traffic volume. For this study, total 10 sections of national highways, which are planned in 1980s and 1990s, were selected and traffic analysis data for highway construction were collected. In addition, targeted 10 sections were categorized into network-related and -unrelated sections. In the analysis of inaccuracy between the estimated and real traffic, for network-related sections, appeared to have lower inaccuracy. As time goes on after traffic open, inaccuracy between the estimated and real traffic appeared to be lower. In various section lengths, the longer the section length, the higher the inaccuracy is. Using 3 years passed data after traffic open, national highway have lower inaccuracy than expressway. However, the traffic analysis according to traffic open time resulted in little change of the inaccuracy.
Keywords
traffic demand; national highway; inaccuracy; traffic planning;
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