An Optimization Model for Assignment of Freight Trains to Transshipment Tracks and Allocation of Containers to Freight Trains

화물열차 작업선배정 및 열차조성을 위한 수리모형 및 해법

  • 김경민 (한국철도기술연구원 교통물류연구실) ;
  • 김동희 (한국철도기술연구원 교통물류연구실) ;
  • 박범환 (한국철도대학 경영정보과)
  • Received : 2010.08.30
  • Accepted : 2010.10.19
  • Published : 2010.10.26

Abstract

We present an optimization model for how to assign the freight trains to transshipment tracks and allocate the containers to the freight trains in a rail container terminal. We formulate this problem as a multi-criteria integer programming to minimize the makespan of job schedule and simultaneously to maximize the loading throughput, i.e. the number of containers to be disposed per day. We also apply our model to the instance obtained from the real-world data of the Uiwang Inner Container Depot. From the experiments, we can see an improvement of approximately 6% in makespan, which means that our model can contribute to the improvement of the disposal capacity of containers without additional expansion of facilities.

본 연구는 철도물류터미널에서 작업선 배정 및 열차조성을 위한 최적화 모형을 제시한다. 본 연구에서는 하루 터미널 작업 종료시간을 최소화하며 처리 컨테이너수를 최대화하는 다기준 정수 계획 모형을 개발하였고, 의왕ICD로부터의 실제 데이터로부터 구성된 현실 문제에 대해 본 모형을 적용하여 실험하였다. 실험 결과 목적함수의 가중치에 따라 다양한 파레토 최적해를 산출할 수 있었으며, 기존의 해보다 전체 작업종료 시간을 약 6% 감소시켰으며 이러한 결과는 본 연구에서 개발한 최적화 모형을 적용할 경우 설비의 추가적인 확장 없이도, 철도 컨테이너 터미널의 처리효율 향상을 가져올 수 있음을 의미한다.

Keywords

References

  1. K.M. Kim, B.H. Park, D.H. Kim, S.H. Hong (2010) A Study on the Assigning Track of Freight Trains in a Rail Container Terminal, Korean Society for Railway Spring Conference.
  2. J. Woo, J. An, H. Kim (2009) A Study on the Evaluations and Issues of Rail Container Transport in Korea Railway, Journal of the Korean Society for Railway, Vol. 12, No. 5, pp. 751-760.
  3. K.H. Kim (2007) Decision-making Problems for the Operation of Container Terminals, Journal of the Korean Institute of Industrial Engineers, Vol. 33, No. 3, pp. 290-302.
  4. Pinedo (1995) Scheduling - Theory, Algorithms and Systems, Prentice Hall.
  5. P. Corry, E. Kozan (2006) An assignment model for dynamic load planning of intermodal trains, Computers & Operations Research.
  6. Y. Lai, P.L. Barkan, H. Onal (2008) Optimizing the aerodynamic efficiency of intermodal freight trains, Transportations Research Part E 44.
  7. N. Bostel, P. Dejax (1998) Model and Algorithms for Container Allocation Problems on Trains in a Rapid Transshipment Shunting Yard, Transportation Science.
  8. C.A. Yano, A.M. Newman (2001) Scheduling Trains and Contrainers with Due Dates and Dynamic Arrivals, Transportation Science 35.
  9. Nakorn Indra-Payoong, Raymond S K Kwan, Les Proll (2003) Constraint-Based Local Search for Rail Container Service Planning, Technical report.
  10. L.A. Wolsey (1999), Integer Programming, John Wiley and Sons, INC.