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Collaborative optimization of routing and stowage for commodity vehicle RoRo ships considering port inventory
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Hualong YANG, Wenqi MIAO, Yilun SUN, Ming WEN
Navigation of China | 2025, 48(2) : 72 - 79
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Navigation of China | 2025, 48(2): 72-79
• Port and Waterway Engineering •
Collaborative optimization of routing and stowage for commodity vehicle RoRo ships considering port inventory
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Hualong YANG, Wenqi MIAO, Yilun SUN, Ming WEN
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  • Transportation Engineering College, Dalian Maritime University, Dalian 116026, China
Published: 2025-06-25 doi: 10.3969/j.issn.1000-4653.2025.02.010
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This paper studied the problem of distributing commodities for RoRo ships. Taking into account the initial inventory level at each demand port, the paper proposes a flexible calling strategy for RoRo ships transporting commodity vehicles within multiple voyage planning periods. A collaborative optimization model for routing and stowage was established for RoRo ships, and an improved genetic algorithm was designed to solve it. The results of the numerical example demonstrate that this flexible calling strategy can reduce the total distribution cost of RoRo ships by 1.9%. There is a difference of about 4% in fuel consumption between large and small RoRo ships for round-trip voyages on the same route. Shipping companies can also reduce total costs by arranging different types of RoRo ship for distribution. When the safety stock is set to a moderate level, the total cost during the planning period is minimized. These research conclusions can provide a useful reference for shipping companies when making decisions about the distribution of commodities with RoRo ships.

commodity vehicle RoRo ship  /  routing and stowage  /  collaborative optimization  /  port inventory  /  improved genetic algorithm
Hualong YANG, Wenqi MIAO, Yilun SUN, Ming WEN. Collaborative optimization of routing and stowage for commodity vehicle RoRo ships considering port inventory[J]. Navigation of China, 2025 , 48 (2) : 72 -79 . DOI: 10.3969/j.issn.1000-4653.2025.02.010
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Year 2025 volume 48 Issue 2
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Article Info
doi: 10.3969/j.issn.1000-4653.2025.02.010
  • Receive Date：2024-02-14
  • Online Date：2026-03-17
  • Published：2025-06-25
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  • Received：2024-02-14
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    Transportation Engineering College, Dalian Maritime University, Dalian 116026, 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
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
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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