交通运输系统工程与信息 ›› 2024, Vol. 24 ›› Issue (1): 35-45.DOI: 10.16097/j.cnki.1009-6744.2024.01.004

• 综合交通运输体系论坛 • 上一篇    下一篇

集装箱海铁联运补贴优化研究

吴云强a,解乔雅a,张戎*a, b   

  1. 同济大学,a. 城市交通研究院;b. 道路与交通工程教育部重点实验室,上海 201804
  • 收稿日期:2023-09-12 修回日期:2023-10-19 接受日期:2023-11-01 出版日期:2024-02-25 发布日期:2024-02-10
  • 作者简介:吴云强(1994- ),男,辽宁庄河人,博士生
  • 基金资助:
    高端外国专家引进计划(G2022133042L)

Optimization of Subsidies for Container Sea-rail Intermodal Transportation

WU Yunqianga, XIE Qiaoyaa, ZHANG Rong*a, b   

  1. a. Urban Mobility Institute; b. Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804, China
  • Received:2023-09-12 Revised:2023-10-19 Accepted:2023-11-01 Online:2024-02-25 Published:2024-02-10
  • Supported by:
    High-end Foreign Experts Project (G2022133042L)

摘要: 补贴是一种被政府广泛采用且能够有效促进海铁联运发展的措施。本文研究包括3种运输方式和两个起运港的集装箱运输系统中的海铁联运协同补贴优化问题。首先,构建双层规划模型描述政府与托运人之间的博弈关系,上层模型从政府角度出发,以海铁联运运量最大为目标,确定海铁联运班列单个重箱补贴金额;下层模型基于熵最大化理论,构建能力约束型巢式 Logit模型描述托运人对起运港和运输方式的选择行为。其次,通过Karush-Kuhn-Tucker条件将双层模型转化为单层模型,并利用松弛迭代算法求解。结果表明:补贴会促进海铁联运运量的增长,其增量主要来自公海联运转移的货运量,少部分来自水水联运转移;相比于不协同补贴,协同补贴不仅显著降低单箱补贴金额,还能提高海铁联运运量;货物时间价值对补贴效果产生影响, 补贴具有中等时间价值货物的托运人将会获得最佳结果。

关键词: 综合运输, 补贴, 双层规划模型, 海铁联运, 能力约束型巢式Logit模型

Abstract: Providing subsidy is a widely-used method by the government to promote the development of sea-rail intermodal transportation. This paper investigates the optimization of coordinated subsidies for sea-rail intermodal transportation in a container freight system including three modes and two departure ports. A bi-level programming model is developed to describe the game relationship between the government and shippers. The upper-level model determines the subsidy amount per heavy container for each train from the government's perspective to maximize the volume of sea-rail intermodal transportation. The lower-level model represents shippers' choice behavior for departure ports and modes under subsidies using the capability constrained nested Logit model based on the entropy maximization theory. The bi-level model is then transformed into a single-level model by the Karush-Kuhn-Tucker condition which is solved by the relaxation iterative algorithm. The results show that subsidies can promote the growth of sea-rail intermodal transportation volume, mainly from the volume transferred through road-sea intermodal transportation, with a small amount from water-water intermodal transportation. Compared to the uncoordinated subsidy, the coordinated subsidy significantly reduces the subsidy amount per container and increases the volume. Moreover, time value affects the effectiveness of subsidies, and the best results can be obtained by providing subsidies to shippers with medium-time value goods.

Key words: integrated transportation, subsidies, bi-level programming model, sea-rail intermodal transportation; capability constrained nested Logit model

中图分类号: