摘要
以当前高铁快递运输的客货共运模式为背景,研究高铁列车货运兼办方案优化问题.通过分析客货共运模式下货运办理站选择对货物运输、客运列车时刻表与停站方案的影响,以货运办理站选择、货物运输、列车时刻表与列车停站方案为主要决策变量,以极小化旅客旅行时间和未满足货物惩罚成本为目标,构建客货共运模式下基于货运办理站方案选择的货物运输与列车时刻表、列车停站方案一体化优化混合整数线性规划模型.当给定货运办理站选择方案时,本文所构建模型即可转化为传统的客货共运模式下货物运输方案优化模型.以武广高铁为例,设计数值实验,采用C++语言编写程序调用Cplex优化软件对模型进行求解,验证了模型的正确性与合理性.算例结果表明:通过对货运办理站、货物运输方案、列车时刻表和停站方案进行一体化优化,可在尽可能减小货物运输对客运影响的基础上,充分利用高铁线路列车时空上剩余能力,在旅客旅行时间仅增加0.68%、列车停站数量仅增加1.24%的情况下,运输近68%的货物需求,增加铁路部门收益.
This paper studies the optimization of high-speed railway freight transportation within the context of the passenger and freight co-transportation mode.By analyzing the impact of different freight handling station selections on freight transportation,passenger train schedules,and stop plans,a mixed integer linear programming model is formulated with the purpose of minimizing passenger travel time and penalty cost of unsatisfied freight transportation.The proposed model takes the selec⁃tion of freight handling station,freight transportation,train schedules,and train stop plans as the main decision variables.When the selection scheme of freight handling station is provided,the proposed model degenerates into a conventional optimization model for freight transportation under the co-transportation mode.By taking the Wuhan-Guangzhou high-speed railway as an example,a numeri⁃cal experiment is implemented to verify the soundness and rationality of the proposed model,which is solved by the commercial software Cplex coded by C++.The results show that through an inte⁃grated optimization encompassing the selection of freight handling station,freight transportation plan,train schedules,and stop plans,the proposed methods can minimize the impact of implementing freight transportation on passengers while efficiently utilizing residual capacity of high-speed railway lines.This approach enables the transportation of nearly 68%of freight demands,with a mere 0.68%increase in passenger travel time and a 1.24%increase in train stops,leading to revenue increase for railway companies.
作者
戚建国
周亚茹
杨立兴
张金雷
邸振
QI Jianguo;ZHOU Yaru;YANG Lixing;ZHANG Jinlei;DI Zhen(School of Systems Science Beijing Jiaotong University,Beijing 100044,China;School of Traffic and Transportation,Beijing Jiaotong University,Beijing 100044,China;School of Transportation Engineering,East China Jiaotong University,Nanchang 330013,China)
出处
《北京交通大学学报》
CAS
CSCD
北大核心
2023年第4期1-11,共11页
JOURNAL OF BEIJING JIAOTONG UNIVERSITY
基金
国家自然科学基金(72001019,72161010,71825004)。
关键词
铁路运输
货运办理站选择
混合整数线性规划
客货共运
列车时刻表
停站方案
railway transportation
selection of freight handling station
mixed-integer linear program⁃ming
co-transportation of passenger and freight
train schedule
train stop plan
