改进的元胞自动机列车交通流仿真模型研究  

Train Flow Research of Moving Block System Based on Improved Cellular Automation Model

作　　者：齐姗姗 彭其渊[1,2] QI Shanshan;PENG Qiyuan(School of Transportation and Logistics,Southwest Jiaotong University,Chengdu 610031,China;National United Engineering Laboratory of Integrated and Intelligent Transportation,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学交通运输与物流学院,成都610031 [2]西南交通大学综合交通运输智能化国家地方联合工程实验室,成都610031

出　　处：《计算机工程与应用》2019年第24期254-258,共5页Computer Engineering and Applications

基　　金：国家自然科学基金（No.U1234206）;中国铁路总公司科技研究开发计划（No.2016X008-J）

摘　　要：在既有元胞自动机模型的基础上,针对移动闭塞系统下列车追踪运行的特点提出一种改进的元胞自动机模型,该模型有效解决了既有模型中列车速度变化的不合理问题,提高了模型的准确性和可靠性。应用该模型获得了移动闭塞系统下列车流的相位图,并分析了移动闭塞系统中线路上快慢车开行比例及开行速差等因素对线路通过能力及列车平均速度的影响。研究结果表明,车站对列车流具有调和的作用,能够使列车流得到一定程度的同化。此外,减小快慢车速差可以有效增大线路的通过能力,而增加快车开行比例,则能够显著提高所有列车的运行效率,从而保证整个系统的高效运营。Based on the existing Cellular Automation(CA)models of moving block system,an improved CA model is proposed to solve the‘irrational bounce’problem which is detected in the velocity change of tracking trains.The train flow is simulated by applying the improved model and its phase diagram is obtained.In addition,the paper discusses the factors that can affect the pattern of the train flow.It is reported that the station can regulate the status of train flow and the increase of the velocity gap of different trains and the decrease of percentage of fast trains can significantly improve the line capacity,by promoting the operation efficiency of the whole system.

关 键 词：元胞自动机 移动闭塞 相位图 列车流 

分 类 号：U284.44[交通运输工程—交通信息工程及控制]