基于元胞自动机理论的沪杭高铁通过能力仿真研究

Simulation on Passing Capacity of Shanghai-Hangzhou HSR Based on Cellular Automata Theory

沪杭高铁除嘉兴南站外,其他沿途车站各方向均仅有1条到发线,不可避免会出现在同一股道接发同向列车的情况,列车发到间隔时间较大,阻碍了沪杭高铁运能的提升。通过元胞自动机理论,建立沪杭高铁通过能力仿真系统,以现行运行图停站方案为基础,对同股道列车发到间隔时间为7 min和6 min两种情况进行仿真分析,对比压缩列车同股道发到间隔时间对沪杭高铁通过能力的影响。仿真结果表明,在现行较优的运行方案下,压缩列车发到间隔时间对目前沪杭高铁通过能力的提升幅度有限。

Except for the Jiaxing south station, there is only one arrival/departure track at each station along the Shanghai-Hangzhou HSR, which means that it is inevitably that trains have to arrive and depart on the same track, resulting in long interval between trains and further a waste of passing capacity of the railway. A simulation model is established for this railway by using the cellular automata theory, which simulates two scenarios with train departure/arrival intervals of 7 min and 6 min based on the current TOD to compare the influence on the passing capacity. The simulations result show that with the current well-allocated TOD, the compression of train interval has little imfluence on the passing capacity of this line.