铁路网重空车流径路整体优化模型  

Optimal route choice model for loaded and empty car flows in railway network

作　　者：王龙[1] 马建军 林柏梁[1] 陈雷[1] 温旭红[1] 

机构地区：[1]北京交通大学交通运输学院,北京100044 [2]中国铁路总公司信息办,北京100844

出　　处：《北京交通大学学报》2014年第6期12-18,共7页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：中央高校基本科研业务费专项资金资助(2014YJS085)

摘　　要：基于我国铁路车流径路呈树形结构的特点,将分车种的空车调配纳入车流径路的优化体系,同时在满足点线能力限制的前提下,以重空车流整体走行费用最小为目标,构建了车流运行径路的优化模型,并在此基础上,考虑到空车调配过程中的车种代用因素,对模型进行扩展,描述了铁路网重空车流的分配方案.最后,以我国东北部分区域路网为案例背景,通过优化求解,获得了满意的车流径路方案和空车调配轮廓方案,从而验证了模型的合理性和有效性.An optimal route choice model was constructed in this paper with the objective function of getting a minimum total running cost of loaded and empty car flows. This model considered the real- life operating characteristic that the routes of car flows in railway network emerged as a tree type struc- ture. Above this, the problem of multi-type empty ear distribution was included into the route choice optimization system with the constraints of terminals＇ and sections＇ carrying capacity. Moreover, the model was further extended by adding in the substitution of empty car types, which resulted in a more comprehensive description of the assignment of loaded and empty car flows in railway network. Final- ly, a numerical example based on part of the regional network in Northeast was given, and a satisfac- tory ear flow routing solution and an empty car distribution outline plan were achieved by computing optimally, thus verifying the rationality and effectiveness of the models.

关 键 词：铁路运输 车流径路 空车调配 车种代用 

分 类 号：U292.3[交通运输工程—交通运输规划与管理]