Collaborative Optimization of Container Liner Slot Allocation and Empty Container Repositioning Within Port Clusters

The imbalance between supply and demand for slot resources and empty containers has led to resource waste and excessive operating costs for liner companies. Moreover, intense competition among ports has made both container ship slots and port equipment resource allocation inefficient. To address the...

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Main Authors: Wenmin Wang, Cuijie Diao, Wenqing He, Zhihong Jin, Zaili Yang
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/13/1/159
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author Wenmin Wang
Cuijie Diao
Wenqing He
Zhihong Jin
Zaili Yang
author_facet Wenmin Wang
Cuijie Diao
Wenqing He
Zhihong Jin
Zaili Yang
author_sort Wenmin Wang
collection DOAJ
description The imbalance between supply and demand for slot resources and empty containers has led to resource waste and excessive operating costs for liner companies. Moreover, intense competition among ports has made both container ship slots and port equipment resource allocation inefficient. To address these challenges, this paper aims to solve the collaborative optimization problem of slot allocation and empty container repositioning within port clusters concerning inventory control. A cooperative possession strategy and a hybrid (T, s) inventory control policy are incorporated in this paper. A novel mixed-integer programming model is proposed, enabling us to simultaneously track slot allocation, empty container repositioning, empty container leasing, and slot renting. To solve the model, a new branch-and-bound algorithm based on Lagrangian relaxation and the ascendancy principle (BBLRAP) is developed. Numerical experiments are conducted to demonstrate the effectiveness of the proposed model and algorithm. The results show that the new collaborative optimization method, incorporating the cooperative possession strategy and (T, s) inventory policy, can increase liner company revenues by expanding market share, reducing costs, and improving the utilization of slot resources, ultimately achieving a win–win outcome for both liner companies and their partners. Compared to state-of-the-art studies, the following paper makes new contributions to proposing a cooperative possession strategy within port clusters for the first time. This paper ensures that liner companies and partners achieve a win–win situation in the cooperative game, expanding market shares and improving customer satisfaction.
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institution Kabale University
issn 2077-1312
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publishDate 2025-01-01
publisher MDPI AG
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series Journal of Marine Science and Engineering
spelling doaj-art-c2b1be441a844a48b763de60f508f93e2025-01-24T13:37:05ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-01-0113115910.3390/jmse13010159Collaborative Optimization of Container Liner Slot Allocation and Empty Container Repositioning Within Port ClustersWenmin Wang0Cuijie Diao1Wenqing He2Zhihong Jin3Zaili Yang4Transportation Engineering College, Dalian Maritime University, Dalian 116026, ChinaTransportation Engineering College, Dalian Maritime University, Dalian 116026, ChinaTransportation Engineering College, Dalian Maritime University, Dalian 116026, ChinaTransportation Engineering College, Dalian Maritime University, Dalian 116026, ChinaTransportation Engineering College, Dalian Maritime University, Dalian 116026, ChinaThe imbalance between supply and demand for slot resources and empty containers has led to resource waste and excessive operating costs for liner companies. Moreover, intense competition among ports has made both container ship slots and port equipment resource allocation inefficient. To address these challenges, this paper aims to solve the collaborative optimization problem of slot allocation and empty container repositioning within port clusters concerning inventory control. A cooperative possession strategy and a hybrid (T, s) inventory control policy are incorporated in this paper. A novel mixed-integer programming model is proposed, enabling us to simultaneously track slot allocation, empty container repositioning, empty container leasing, and slot renting. To solve the model, a new branch-and-bound algorithm based on Lagrangian relaxation and the ascendancy principle (BBLRAP) is developed. Numerical experiments are conducted to demonstrate the effectiveness of the proposed model and algorithm. The results show that the new collaborative optimization method, incorporating the cooperative possession strategy and (T, s) inventory policy, can increase liner company revenues by expanding market share, reducing costs, and improving the utilization of slot resources, ultimately achieving a win–win outcome for both liner companies and their partners. Compared to state-of-the-art studies, the following paper makes new contributions to proposing a cooperative possession strategy within port clusters for the first time. This paper ensures that liner companies and partners achieve a win–win situation in the cooperative game, expanding market shares and improving customer satisfaction.https://www.mdpi.com/2077-1312/13/1/159cooperative possession strategy(T, s) inventory control policyport clustercontainer slot allocationempty container repositioning
spellingShingle Wenmin Wang
Cuijie Diao
Wenqing He
Zhihong Jin
Zaili Yang
Collaborative Optimization of Container Liner Slot Allocation and Empty Container Repositioning Within Port Clusters
Journal of Marine Science and Engineering
cooperative possession strategy
(T, s) inventory control policy
port cluster
container slot allocation
empty container repositioning
title Collaborative Optimization of Container Liner Slot Allocation and Empty Container Repositioning Within Port Clusters
title_full Collaborative Optimization of Container Liner Slot Allocation and Empty Container Repositioning Within Port Clusters
title_fullStr Collaborative Optimization of Container Liner Slot Allocation and Empty Container Repositioning Within Port Clusters
title_full_unstemmed Collaborative Optimization of Container Liner Slot Allocation and Empty Container Repositioning Within Port Clusters
title_short Collaborative Optimization of Container Liner Slot Allocation and Empty Container Repositioning Within Port Clusters
title_sort collaborative optimization of container liner slot allocation and empty container repositioning within port clusters
topic cooperative possession strategy
(T, s) inventory control policy
port cluster
container slot allocation
empty container repositioning
url https://www.mdpi.com/2077-1312/13/1/159
work_keys_str_mv AT wenminwang collaborativeoptimizationofcontainerlinerslotallocationandemptycontainerrepositioningwithinportclusters
AT cuijiediao collaborativeoptimizationofcontainerlinerslotallocationandemptycontainerrepositioningwithinportclusters
AT wenqinghe collaborativeoptimizationofcontainerlinerslotallocationandemptycontainerrepositioningwithinportclusters
AT zhihongjin collaborativeoptimizationofcontainerlinerslotallocationandemptycontainerrepositioningwithinportclusters
AT zailiyang collaborativeoptimizationofcontainerlinerslotallocationandemptycontainerrepositioningwithinportclusters