考虑列车加开的技术站车流接续模型  

Marshalling station car-flow model considering additional trains

作　　者：薛锋[1,2,3] 范千里 周琳 陈崇双 XUE Feng;FAN Qian-li;ZHOU Lin;CHEN Chong-shuang(School of Transportation and Logistics,Southwest Jiaotong University,Chengdu 611756,China;National Engineering Laboratory of Integrated Transportation Big Data Application Technology,Chengdu 611756,China;National United Engineering Laboratory of Integrated and Intelligent Transportation,Chengdu 611756,China;Ningbo Port Railway Co.,Ltd.,Ningbo 315200,China;School of Mathematics,Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]西南交通大学,交通运输与物流学院,成都611756 [2]综合交通大数据应用技术国家工程实验室,成都611756 [3]综合交通运输智能化国家地方联合工程实验室,成都611756 [4]宁波港铁路有限公司,宁波315200 [5]西南交通大学,数学学院,成都611756

出　　处：《交通运输工程与信息学报》2022年第4期123-135,共13页Journal of Transportation Engineering and Information

基　　金：国家自然科学基金项目(61203175);四川省科技计划项目(2021YJ0077);四川省自然科学基金项目(2022NSFSC0471)

摘　　要：随着高速铁路的快速发展,普速铁路能力逐渐得到释放。为了提高货车周转效率,避免技术站出现拥堵的问题,本文从技术站角度出发,考虑在加开列车的基础上进行车流接续优化。本文以推拉理论为基础,分析得到列车加开的判定条件,在满足加开列车条件的前提下分别就以下两个冲突进行分析:一是列车加开作业与技术站内现有列车技术作业之间的冲突;二是列车加开作业与运行图之间的冲突。经分析得到列车加开的基本时间窗及基本条件,在此基础上,建立考虑列车加开的技术站车流接续模型。以货车在站停留时间最短为目标函数,将该模型分解为两个子问题,一是技术站股道运用子问题,二是车流接续子问题,并运用遗传算法对两个子问题分别进行求解。为证明模型的适用性,结合算例,将考虑列车加开的技术站车流接续模型与原技术站车流接续模型进行求解对比,结果表明:相较于原方案,考虑列车加开的技术站车流接续方案使货车的平均在站停留时间缩短了14.1 min,减幅达7.4%,在技术站内拥堵的情况时具有更高的适用性。Owing to the rapid development of high-speed railroads,the capacity of general speed railroads hasbeen increased gradually to improve the efficiency of truck turnovers and avoid congestion in technical stations.Hence,in this study,the car flow continuityof additional trains in technical stations is optimized based on push-pull theory,and the judgment conditions of additional trains are analyzed.Subsequently,the following two conflicts are examined:The first is the conflict between the operations of the additional and existing trains in the station,and the second is the conflict between the additional train operation and the operation chart.The basic time window and the basic conditions of the additional train operation are obtained after performing the analysis.Subsequently,a car flow continuitymodel of the technical station considering the additional train operation is established.The model is decomposed into two subproblems:one pertains to the stock utilization of the technical station,and the other pertains to traffic succession.The two subproblemsare solved separately using a genetic algorithm.To prove the applicability of the model,a calculation example is provided,and the car flow continuitymodel of the technical station considering additional trains is compared with that of the original technical station.The result shows that compared with the original scheme,the technical station car flow continuityscheme considering additional trains features a shorter average dwell time of trucks by 14.1 min or 7.4%and is thus more applicable when congestion occurs in the technical station.

关 键 词：铁路运输 技术站 车流接续 优化方案 推拉效应 遗传算法 列车加开 

分 类 号：U292.3[交通运输工程—交通运输规划与管理]