A tree search procedure for the container pre-marshalling problem
In the container pre-marshalling problem (CPMP) n items are given that belong to G different item groups (g=1,…,G) and that are piled up in up to S stacks with a maximum stack height H. A move can shift one item from one stack to another one. A sequence of moves of minimum length has to be determined that transforms the initial item distribution so that in each of the stacks the items are sorted by their group index g in descending order. The CPMP occurs frequently in container terminals of seaports. It has to be solved when export containers, piled up in stacks, are sorted in a pre-marshalling process so that they can be loaded afterwards onto a ship faster and more efficiently. This article presents a heuristic tree search procedure for the CPMP. The procedure is compared to solution approaches for the CPMP that were published so far and turns out to be very competitive. Moreover, computational results for new and difficult CPMP instances are presented.
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- Hwan Kim, Kap & Bae Kim, Hong, 1999. "Segregating space allocation models for container inventories in port container terminals," International Journal of Production Economics, Elsevier, vol. 59(1-3), pages 415-423, March.
- Vis, Iris F. A. & de Koster, Rene, 2003. "Transshipment of containers at a container terminal: An overview," European Journal of Operational Research, Elsevier, vol. 147(1), pages 1-16, May.
- Kim, Kap Hwan & Park, Young Man & Ryu, Kwang-Ryul, 2000. "Deriving decision rules to locate export containers in container yards," European Journal of Operational Research, Elsevier, vol. 124(1), pages 89-101, July.
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