• Title/Summary/Keyword: WCSPP 모형

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An Optimal Intermodal-Transport Algorithm using Dynamic Programming (동적 프로그래밍을 이용한 최적복합운송 알고리즘)

  • Cho Jae-Hyung;Kim Hyun-Soo;Choi Hyung-Rim;Park Nam-Kyu;Kang Moo-Hong
    • Journal of Korea Society of Industrial Information Systems
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    • v.11 no.3
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    • pp.20-33
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    • 2006
  • Because of rapid expansion of third party logistics, fierce competition in the transportation industry, and the diversification and globalization of transportation channels, an effective transportation planning by means of multimodal transport is badly needed. Accordingly, this study aims to suggest an optimal transport algorithm for the multimodal transport in the international logistics. As a solution for this problem, first of all, we have applied a pruning algorithm to simplify it, suggesting a heuristic algorithm for constrained shortest path problem to find out a feasible area with an effective time range, which has been applied to the Label Setting Algorithm, consequently leading to multiple Pareto optimal solutions. Also, in order to test the efficiency of the algorithm for constrained shortest path problem, this paper has applied it to the actual transportation path from Busan port of Korea to Rotterdam port of Netherlands.

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An Optimal Intermodal-Transport Algorithm using Dynamic Programming (동적 프로그래밍을 이용한 최적복합운송 알고리즘)

  • Cho Jae-Hyung;Kim Hyun-Soo;Choi Hyung-Rim;Park Nam-Kyu;Kim So-Yeon
    • Proceedings of the Korea Society for Industrial Systems Conference
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    • 2006.05a
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    • pp.95-108
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    • 2006
  • Because of rapid expansion of third party logistics, fierce competition in the transportation industry, and the diversification and globalization of transportation channels, an effective transportation planning by means of multimodal transport is badly needed. Accordingly, this study aims to suggest an optimal transport algorithm for the multimodal transport in the international logistics. Cargoes and stopovers can be changed numerously according to the change of transportation modes, thus being a NP-hard problem. As a solution for this problem, first of all, we have applied a pruning algorithm to simplify it, suggesting a heuristic algorithm for constrained shortest path problem to find out a feasible area with an effective time range and effective cost range, which has been applied to the Label Setting Algorithm, consequently leading to multiple Pareto optimal solutions. Also, in order to test the efficiency of the algorithm for constrained shortest path problem, this paper has applied it to the actual transportation path from Busan port of Korea to Rotterdam port of Netherlands.

  • PDF