Journal of Navigation and Port Research (한국항해항만학회지)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Comparing Expected Numbers of Re-Handles for Empty Containers During Gate-Out Operation

공 컨테이너 반출 시 발생하는 재취급 횟수 비교

  • Lee, Hoon (Logistics System Institute of Total Soft Bank, Ltd.) ;
  • Kim, Kap-Hwan (Industry Engineering of Pusan National University)
  • 이훈 ((주)토탈소프트뱅크 물류시스템연구소) ;
  • 김갑환 (부산대학교 산업공학과)
  • Received : 2018.02.05
  • Accepted : 2018.05.14
  • Published : 2018.06.30
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Abstract

If empty containers from multiple shipping liners are mixed together in the same bay, then the space utilization increases; however, the expected number of re-handles also increases. Formulas for estimating the expected number of re-handles are derived for various storage strategies and two types of handling equipment. The expected number of re-handles is compared, through numerical experiments, among those cases. The results of the numerical experiments are used to analyze the change in the number of expected re-handles according to the change in the retrieval ratio and repair ratio. The impacts of the change in the bay size and the distribution of the storage and retrieval ratio of containers among multiple vessel liners on the expected number of re-handles are analyzed. It is necessary to study efficient operational strategies considering the expected number of re-handles for empty containers.

컨테이너 터미널에서 한정된 공간에서 공 컨테이너를 선사별, 컨테이너 종류별로 구분하지 않고 혼적하여 보관하면 장치공간은 효율적으로 활용할 수 있지만 재취급이 증가하는 문제가 발생한다. 본 연구에서는 여러 가지 보관 전략에 따른 장치장에 공 컨테이너가 섞여 있는 상태와 반출 작업에 사용하는 야드 장비에 따라 재취급의 기대 횟수를 추정하는 수식을 유도하고 수치실험을 통하여 비교하였다. 인출비율과 수리비율 변화에 따른 기대 재취급 횟수 변화도 분석하였다. 그리고 장치 규모 변화에 따른 기대 재취급 횟수를 비교하고, 복수 선박의 컨테이너가 혼재된 상태에서 장치비율 및 인출비율 변화에 따른 기대 재취급 횟수를 분석하였다. 공 컨테이너 대상 기대 재취급 횟수를 고려한 효율적인 운영전략에 대한 연구가 필요하다.

Keywords

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