Modeling and Simulation for Urban Rail Traffic Problem Based on Cellular Automata

Based on the Nagel-Schreckenberg model, we propose a new cellular automata model to simulate the urban rail traffic flow under moving block system and present a new minimum instantaneous distance formula under pure moving block. We also analyze the characteristics of the urban rail traffic flow unde...

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Bibliographic Details
Published in:理论物理通讯：英文版 2012, Vol.58 (12), p.847-855
Main Author: 许琰 曹成铉 李明华 罗金龙
Format: Article
Language:English
Subjects:
Nagel-Schreckenberg模型
交通问题
仿真
元胞自动机模型
列车运行速度
城市轨道交通
建模
移动闭塞系统
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Summary:Based on the Nagel-Schreckenberg model, we propose a new cellular automata model to simulate the urban rail traffic flow under moving block system and present a new minimum instantaneous distance formula under pure moving block. We also analyze the characteristics of the urban rail traffic flow under the influence of train density, station dwell times, the length of train, and the train velocity. Train delays can be decreased effectively through flexible departure intervals according to the preceding train type before its departure. The results demonstrate that a suitable adjustment of the current train velocity based on the following train velocity can greatly shorten the minimum departure intervals and then increase the capacity of rail transit.
ISSN:0253-6102