A GLS Based Method of Road Network Dynamic OD Matrix Estimation from Traffic Counts
A GLS Based Method of Road Network Dynamic OD Matrix Estimation from Traffic Counts
- Neue Suche nach: Chang, Yuntao
- Neue Suche nach: Yang, Xiaoguang
- Neue Suche nach: Lu, Qingchang
- Neue Suche nach: Liang, Duidui
- Neue Suche nach: Chang, Yuntao
- Neue Suche nach: Yang, Xiaoguang
- Neue Suche nach: Lu, Qingchang
- Neue Suche nach: Liang, Duidui
This paper presents a road network dynamic OD matrix estimation model using real-time link traffic counts. First, the paper establishes a generalized least squares (GLS) based dynamic OD matrix estimation model, then the dynamic traffic assignment (DTA) technology is used to estimate the link-use proportion matrix. According to the model, a bi-level iterative algorithm is designed to solve the estimation problem. Finally, a case study illustrates that the dynamic OD estimation methodology can traced the variation of network OD matrices well, and produced more precise estimation results.
Dokumentinformationen
A GLS Based Method of Road Network Dynamic OD Matrix Estimation from Traffic Counts
Second International Conference on Transportation Engineering ; 2009 ; Southwest Jiaotong University, Chengdu, China
2009-07-29
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Highways and roads , Information technology (IT) , Transportation management , Matrix methods , Construction , Freight transportation , Traffic surveys , Water transportation , Air transportation , Rail transportation , Least squares method , Optimization , Public transportation , Traffic assignment , Traffic management
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