Journal article
Simultaneous Optimization of Container Ship Sailing Speed and Container Routing with Transit Time Restrictions
Department of Management Engineering, Technical University of Denmark1
Management Science, Department of Management Engineering, Technical University of Denmark2
Transport DTU, Department of Management Engineering, Technical University of Denmark3
Operations Research, Management Science, Department of Management Engineering, Technical University of Denmark4
We introduce a decision support tool for liner shipping companies to optimally determine the sailing speed and needed fleet for a global network. We incorporate cargo routing decisions with tight transit time restrictions on each container such that we get a realistic picture of the utilization of the network.
Furthermore, we show that it is possible to extend the model to include optimal time scheduling decisions such that the time associated with transshipments is also reflected accurately. To solve the speed optimization problem, we propose an exact algorithm based on Benders decomposition and column generation that exploits the separability of the problem.
Computational results show that the method is applicable to liner shipping networks of realistic size and that it is important to incorporate cargo routing decisions when optimizing speed.
Language: | English |
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Year: | 2018 |
Pages: | 739-1034 |
ISSN: | 15265447 and 00411655 |
Types: | Journal article |
DOI: | 10.1287/trsc.2018.0818 |
ORCIDs: | Karsten, Christian Vad , Røpke, Stefan and Pisinger, David |