Integrated Optimization of Train Service Planning and Shipment Allocation for Airport Expresses Under Mixed Passenger and Freight Transportation

被引：0
|
作者：
Li Z.-J. [1 ]
Bai Y. [2 ]
Chen Y. [2 ]
机构：
[1] Scientific & Technical Information Research Institute, China Academy of Railway Science Corporation Limited, Beijing
[2] Key Laboratory of Transport Industry of Big Data Application Technologies for Comprehensive Transport, Beijing Jiaotong University, Beijing
来源：
Jiaotong Yunshu Xitong Gongcheng Yu Xinxi/Journal of Transportation Systems Engineering and Information Technology | 2022年 / 22卷 / 05期
基金：
中国国家自然科学基金;
关键词：
airport express; metro-based freight transportation; mixed transport of passenger and freight; mixed-integer linear programming; urban rail transit; urban traffic;
D O I：
10.16097/j.cnki.1009-6744.2022.05.016
中图分类号：
学科分类号：
摘要：
The airport express has the potential to utilize its surplus capacity to develop freight transportation services. To implement mixed passenger and freight transportation on the airport express, two freight transportation modes, i.e., inserting dedicated freight trains and using the surplus capacity of existing passenger trains, are considered in this study. An optimization model on freight train service planning is developed to determine the train stopping plans, train formation, timetables, and shipment allocation. The objective of the presented model is to maximize the freight profit, which includes freight revenue, loading cost, inventory cost, and train operating cost. To solve the model, a one-dimension searching approach is proposed to determine the number of inserted freight trains. The Gurobi solver is applied to produce the train service plans of the linearized model with a determined number of freight trains. The train formation is allowed to be zero to ensure the monotonic increasing of the objective function during the searching process. An experimental study based on the real airport express is performed to verify the effectiveness and efficiency of the proposed model and algorithm. The results indicate that the proposed method could enhance the operation profit by selectively meeting freight demand without disturbing the passenger trains service. Compared to the all-stop mode, allowing flexible stopping patterns of freight trains could increase the freight profit by 5.2% . Compared to the operating mode with fixed train formation, allowing flexible train formation could increase the freight profit by from 5% to 35% with various freight volume and shipping time requirements. The advantages of flexible train formation are more obvious when the shipping time requirements are relatively high. © 2022 Science Press. All rights reserved.
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页码：154 / 163
页数：9
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