https://scholars.lib.ntu.edu.tw/handle/123456789/170827
標題: | Dynamic Data Acquisition and Parameters Estimation for Traffic Prediction | 作者: | Chang, Tang-Hsien Hsu, Yu-Ting |
關鍵字: | Data collection;Probe vehicles;Real time information;Traffic data;Traffic flow;Travel time;Vehicle detectors | 公開日期: | 九月-2009 | 摘要: | This study proposes a real-time traffic data acquisition system and prediction algorithm. The framework of the system suggests taxi fleets as probe vehicles, combining roadside detectors to collect data from urban networks extensively. Then, mathematical models of “link travel time prediction” and “route flow estimation” are built based on generalized least squares and extended Kalman filter. To verify the prediction capability of the models, this study analyzed the results from grid network simulation. The models are proven well functioning with data processing and calibration. The mean errors of flow estimation on the generated network traffic flows are within 15%. |
描述: | 16th World Congress on ITS, Stockholm, Sweden, Sep.20-25, 2009. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/258295 |
顯示於: | 土木工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。