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Optimization of joint scheduling of multiple fleets considering the heterogeneity of operation modes under the port collection and distribution system
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Qi XU1, 2, Xingyue CHEN2, Yongmei ZHONG3, Guan LIAN3, Xiangyu YIN4
Navigation of China | 2025, 48(1) : 84 - 92
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Navigation of China | 2025, 48(1): 84-92
• Port and Waterway Engineering •
Optimization of joint scheduling of multiple fleets considering the heterogeneity of operation modes under the port collection and distribution system
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Qi XU1, 2, Xingyue CHEN2, Yongmei ZHONG3, Guan LIAN3, Xiangyu YIN4
Affiliations
  • 1.Guangxi Key Laboratory of ITS, Guilin 541004, China
  • 2.College of Architecture and Transportation Engineering, Guilin University of Electronic Technology, Guilin 541004, China
  • 3.Nanning Research Institute, Guilin University of Electronic Technology, Nanning 541010, China
  • 4.China Waterborne Transport Research Institute, Beijing 100088, China
Published: 2025-03-25 doi: 10.3969/j.issn.1000-4653.2025.01.011
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In a road transport port collection-distribution system involving container trucks and a drayage fleet, it is necessary to conduct joint scheduling of trucks, tractors, and semi-trailers to achieve coordinated optimization of transport structure and routing simultaneously. This paper proposes a joint scheduling optimization model for multi-fleet combined transport, formulated as a mixed integer programming model. A simulated annealing algorithm based on heuristic rules is designed to solve the proposed problem. The impacts of different transport demands on the total transport cost and the number of workable vehicles under different freight modes are explored. Results show that, compared with the single freight mode, the multi-fleet combined freight mode demonstrates significant advantages in effectively reducing transport costs by 13.3% for tasks uniformly distributed in the freight network. Additionally, by optimizing the allocation of its own vehicle resources, the multi-fleet combined transport mode can mitigate the influence of fixed cost weight coefficient changes and transport demand compactness on the total transport cost.

port collection-distribution system  /  multi-fleet combined scheduling  /  drayage transport  /  container transportation  /  heterogeneity of operational mode  /  simulated annealing algorithm
Qi XU, Xingyue CHEN, Yongmei ZHONG, Guan LIAN, Xiangyu YIN. Optimization of joint scheduling of multiple fleets considering the heterogeneity of operation modes under the port collection and distribution system[J]. Navigation of China, 2025 , 48 (1) : 84 -92 . DOI: 10.3969/j.issn.1000-4653.2025.01.011
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Year 2025 volume 48 Issue 1
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Article Info
doi: 10.3969/j.issn.1000-4653.2025.01.011
  • Receive Date：2024-01-09
  • Online Date：2026-03-17
  • Published：2025-03-25
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  • Received：2024-01-09
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Affiliations
    1.Guangxi Key Laboratory of ITS, Guilin 541004, China
    2.College of Architecture and Transportation Engineering, Guilin University of Electronic Technology, Guilin 541004, China
    3.Nanning Research Institute, Guilin University of Electronic Technology, Nanning 541010, China
    4.China Waterborne Transport Research Institute, Beijing 100088, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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