考虑晚点传播的重载铁路列车运行仿真与调整研究  

Simulation and timetable rescheduling of heavy-haul railway train operation considering delay propagation

作　　者：彭浩宇 何世伟[1] 蔡近近 郑以宁 PENG Haoyu;HE Shiwei;CAI Jinjin;ZHENG Yining(Key Laboratory of Transport Industry of Big Data Application Technologies for Comprehensive Transport,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]北京交通大学综合交通运输大数据应用技术交通运输行业重点实验室,北京100044

出　　处：《铁道科学与工程学报》2024年第11期4431-4441,共11页Journal of Railway Science and Engineering

基　　金：国家自然科学基金资助项目(62076023);中国国家铁路集团有限公司科技研究开发计划项目(P2023X029)。

摘　　要：为提高重载铁路列车运行质量,降低晚点传播对列车运行的干扰,准确掌握列车晚点状态,快速恢复列车运行秩序,开展考虑晚点传播的重载铁路列车运行仿真与调整研究。通过充分考虑晚点传播规律,引入时间步长的概念,构建一种改进的时间离散化的连续型元胞自动机仿真模型,选取某重载铁路2个区段2022年计划运行图中的上行列车为案例,其中,区段A共设有11个车站,上行列车90列,区段B共设有23个车站,上行列车111列。首先对正常运行情况下模型的准确性进行验证,以此为基础设计了2种贴合实际的晚点情况,对区间限速、列车出发晚点进行仿真与运行调整,并详细记录列车运行全过程的运行速度、距离始发站距离、工况信息等指标。通过绘制列车运行图、计算运行图缓冲时间,详细分析列车在晚点状况下的运行规律。案例结果表明,在正常运行情况下,模型仿真结果与计划运行时间误差在4 min以内,模型准确性较高,参数设置较为合理。在晚点情况下,选择区段A中的61210次列车与区段B的61102次列车,分别进行区间限速晚点仿真与列车出发晚点仿真。当晚点程度相同时,区段A中所受影响的列车数小于区段B内所影响的列车数,且区段A内的列车需要花费更少时间以恢复行车秩序。研究结果可为调度人员在晚点情况下进行调度指挥提供参考。To improve the operation quality of heavy-haul railway trains,reduce the interference of delay propagation on train operation,accurately grasp the delay status of trains,and quickly restore train operation order,research on simulation and timetable rescheduling of heavy-haul railway train operation considering delay propagation was carried out.By fully considering the propagation law of delays and introducing the concept of time step,an improved time discretized continuous cellular automaton simulation model was constructed.The up trains in two sections of a heavy-haul railway in 2022 were selected as cases.Section A had a total of 11 stations,90 up trains,and Section B had a total of 23 stations and 111 up trains.Firstly,the accuracy of the model under normal operating conditions was verified.In addition,based on this,two practical delay scenarios were designed to simulate and adjust the interval speed limit and train departure delay.Detailed indicators such as running speed,distance from the starting station,and operating condition information were recorded throughout the entire train operation process.By drawing the train diagram and calculating the buffer time of the diagram,a detailed analysis was conducted on the operation pattern of trains under delay conditions.The research results indicate that under normal operation,the error between the simulation results of the model and the planned running time is within 4 minutes,the model accuracy is high,and the parameter settings are relatively reasonable.In the case of delay,select the 61210 train in section A and the 61102 train in section B for simulation of interval speed limit delay and train departure delay,respectively.When the degree of delay is the same,the number of affected trains in section A is smaller than that in section B,and the trains in section A need to spend less time restoring traffic order.The results can provide a reference for dispatchers to conduct scheduling commands in the event of delays.

关 键 词：重载铁路 晚点传播 元胞自动机 列车运行仿真 列车运行调整 

分 类 号：U296[交通运输工程—交通运输规划与管理]