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The Journal of The Korea Institute of Intelligent Transport Systems Vol.8 No.6 pp.23-35
개별차량 주행정보를 이용한 차로별 구간대표통행시간 산출기법
A Novel Method for Estimating Representative Section Travel Times Using Individual Vehicle Trajectory Data
Abstract
This study proposes a methodology for estimating representative section travel times using individual vehicle travel information under the ubiquitous transportation environment (UTE). A novel approach is to substantialize a concept of dynamic node-links in processing trajectory data. Also, grouping vehicles was conducted to obtain more reliable travel times representing characteristics of individual vehicle travels. Since the UTE allows us to obtain higher accuracy of vehicle positions, travel times for each lane can be estimated based on the proposed methodology. Evaluation results show that less than 10% of mean absolute percentage error was achievable with 20% of probe vehicle rate. It is expected that outcome of this study is useful for providing more accurate and reliable traffic information services.
