基于元胞自动机模型的大秦重载列车追踪运行模拟

Modeling the running of heavy load train using cellular automata model for Datong-Qinhuangdao railway

研究了基于元胞自动机模型的大秦重载列车追踪运行模拟。在NaSch模型的基础上,结合之前固定自动闭塞轨道交通领域的研究成果,改进了原有模型,并对四显示固定自动闭塞系统的大秦重载列车进行仿真模拟。综合考虑了列车的发车方式、发车间隔、列车长度、到发线数量、车站停留时间等参数对列车运行时间、平均延误时间的影响。模拟结果表明:利用Matlab建立的仿真模型,能较为合理客观地模拟各种因素对列车运行状态、速度变化、延误传播等特性,模拟结果可以为大秦线运输组织提供决策依据,提高运输能力及市场竞争力。

This paper aims to establish heavy load train running simulations by using cellular automata model for Datong-Qinhuangdao railway.On the basis of Nagel-Schreckenberg model,the author carried out as well as improved four-signal fixed auto block system simulation with the combination of former research in the field of rail transport.This paper considered the relation between departure model,departure intervals,length of train,the number of arrival and departure track,dwell time and train running time as well as average delay time respectively.Results show that simulations established by Matlab7.0 are liable to describe the characteristics of running situation,the speed of change,the delay spread with consideration of various factors objectively and reasonably.The results of simulation are liable to provide foundation of Decision-making,improves transport capacity as well as Competitiveness.