1. Development and Empirical Study of Real-Time Simulation-Based Dynamic Traffic Assignment Model.
- Author
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Liao, Tsai-Yun, Hu, Ta-Yin, Chen, Li-Wen, and Ho, Wei-Ming
- Subjects
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TRAFFIC engineering , *TRANSPORTATION engineering , *TRAFFIC flow , *TRAFFIC regulations , *TRAFFIC assignment , *CITY traffic , *MATHEMATICAL models , *DECISION theory - Abstract
This research aims at developing a system of real-time simulation-based dynamic traffic model under mixed traffic flow conditions. The system consists of two layers, namely, simulation layer and real-time control layer. The system is implemented based on rolling horizon approach, which is advanced for each stage; thus real-time data can be incorporated within the framework. In order to predict normative, as well as predictive, information, a simulation-based dynamic traffic assignment model is employed within each stage. Empirical data for a real city network, such as flows from vehicle detectors, are used to validate the model in a real-time environment. The values of mean absolute percentage error and root-mean-squared percentage error are within 15%, and the results show promising agreements between observed and simulated flows. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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