基于随机客流OD的市郊铁路停站方案优化研究  

Research on Optimization of Suburban Railway Stop Schedule Based on Random Traffic OD

作　　者：毕明凯 何世伟[1] 黎浩东[1] 殷玮川 景云 BI Mingkai;HE Shiwei;LI Haodong;YIN Weichuan;JING Yun(MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]北京交通大学城市交通复杂系统理论与技术教育部重点实验室,北京100044

出　　处：《铁道学报》2018年第10期1-7,共7页Journal of the China Railway Society

基　　金：国家自然科学基金(U1434207;U61403022);中国铁路总公司科技研究开发计划(2017X004-D;2017X004-E)

摘　　要：市郊铁路是城市公共交通"十三五"发展的重点之一。通过分析市郊铁路客流出行需求,采取快、慢车搭配开行对列车停站方案进行优化,以总运行时间最小为目标,添加OD客流量随机机会约束,构建包含随机机会约束的非线性市郊列车停站优化模型。对随机机会和非线性约束进行等价转化为线性确定型约束,采用ILOG CPLEX软件进行精确求解。通过设计算例,比较运营速度120和160 km/h客运产品不同开行比例下的停站优化方案,发现总运行时间降低达29%,验证了模型和算法的有效性。采用快慢车搭配开行,有利于提高市郊列车直达率,降低出行时间成本。优化后的方案对基础设施建设以及市郊列车开行方案的制定具有一定的参考价值。Suburban railway,a necessary connection between central cities and satellite cities,has become one key point in the development of urban public transport during the 13 th five-year plan.By analyzing the demand and characters of passenger flow of suburban railways,the train stopping scheme was optimized with the combination of express/slow trains.Considering stochastic chance constrain of OD passenger flow,the nonlinear model of suburban stop schedule was built to minimize total travel time of trains.The nonlinear and stochastic chance constraints were transformed to the linear and deterministic model,so that the model could be solved by CPLEX.A numerical example was given with 120 km/h and 160 km/h speed trains.Compared with the optimization results of different ratios of 120 km/h and 160 km/h trains,the total running time of trains was decreased by 29%,which verified the validity of the model and algorithm.It is concluded that the optimization model with the combination of express/slow trains is helpful to increase the non-stop rate of trains and decrease the travel time cost.The optimization stop schedule has a certain guiding significance to the construction of infrastructure and to the development of suburban train operation plan.

关 键 词：旅客运输 停站方案 客流OD 随机机会约束 ILOGCPLEX 

分 类 号：U293.1[交通运输工程—交通运输规划与管理]