DOI QR코드

DOI QR Code

Comparing Cycle Times of Advanced Quay Cranes in Container Terminals

Phan-Thi, Mai-Ha;Ryu, Kwangyeol;Kim, Kap Hwan

  • Received : 2013.01.31
  • Accepted : 2013.08.22
  • Published : 2013.12.31

Abstract

The amount of international trade is rapidly increasing as a result of globalization. It is well known that as the size of a vessel becomes larger, the transportation cost per container decreases. That is, the economy-of-scale holds even in maritime container transportation. As a result, the sizes of containerships have been steadily increased for reducing transportation costs. In addition, various handling technologies and handling equipment have been introduced to increase the throughput capacities of container terminals. Quay crane (QC) that carries out load/unload operations plays the most important role among various handling equipment in terminals. Two typical examples of advanced QC concepts proposed so far are double trolley QC and supertainer QC. This paper suggests a method of estimating the expected value and the standard deviation of the container handling cycle time of the advanced QCs that involve several handling components which move at the same time. Numerical results obtained by the proposed estimation procedure are compared with those obtained by simulation studies. In order to demonstrate the advantage of advanced QCs, we compared their expected cycle times with those of a conventional QC.

Keywords

Cycle Time;Advanced Quay Crane;Container Terminal;Statistics

References

  1. Cain, M. (1994), The moment-generating function of the minimum of bivariate normal random variables, The American Statistician, 48(2), 124-125.
  2. Chao, S. L. and Lin Y. J. (2011), Evaluating advanced quay cranes in container terminals, Transportation Research Part E: Logistics and Transportation Review, 47(4), 432-445. https://doi.org/10.1016/j.tre.2010.12.002
  3. Daganzo, C. F. (1989), The crane scheduling problem, Transportation Research Part B: Methodological, 23(3), 159-175. https://doi.org/10.1016/0191-2615(89)90001-5
  4. Jung, D. H., Park, Y. M., Lee, B. K., Kim, K. H., and Ryu, K. R. (2006), A quay crane scheduling method considering interference of yard cranes in container terminals, In: MICAI 2006: Advances in Artificial Intelligence, Springer, Heidelberg, Germany, 461-471.
  5. Kim, K. H. and Park, Y. M. (2004), A crane scheduling method for port container terminals, European Journal of Operational Research, 156(3), 752-768. https://doi.org/10.1016/S0377-2217(03)00133-4
  6. Kim, K. H., Phan, T. M. H., and Woo, Y. J. (2012), New conceptual handling systems in container terminals, Industrial Engineering and Management Systems, 11(4), 299-309. https://doi.org/10.7232/iems.2012.11.4.299
  7. Lee, Y. J., Suh, J. H., Lee, J. W., Lee, S. G., and Lee, K. S. (2005), A design of high efficient gantry crane for ultra large container ship, Proceedings of the International Federation of Automatic Control World Congress, Prague, Czech Republic.
  8. Lim, A., Rodrigues, B., and Xu, Z. (2007), A m-parallel crane scheduling problem with a non-crossing constraint, Naval Research Logistics, 54(2), 115-127. https://doi.org/10.1002/nav.20189
  9. Lim, A., Rodrigues, B., Xiao, F., and Zhu, Y. (2004), Crane scheduling with spatial constraints, Naval Research Logistics, 51(3), 386-406. https://doi.org/10.1002/nav.10123
  10. Meisel, F. and Bierwirth, C. (2011), A unified approach for the evaluation of quay crane scheduling models and algorithms, Computers and Operations Research, 38(3), 683-693. https://doi.org/10.1016/j.cor.2010.08.001
  11. Phan, T. M. H and Kim, K. H. (2012), Estimating the cycle time of container handling in terminals, Information, 15(12C), 6077-6098.
  12. Peterkofsky, R. I. and Daganzo, C. F. (1990), A branch and bound solution method for the crane scheduling problem, Transportation Research Part B: Methodological, 24(3), 159-172. https://doi.org/10.1016/0191-2615(90)90014-P
  13. Vidovic, M. and Kim, K. H. (2006), Estimating the cycle time of three-stage material handling systems, Annals of Operations Research, 144(1), 181-200. https://doi.org/10.1007/s10479-006-0020-0
  14. Yang, K. H. (2012), The influence of the quay crane traveling time for the quay crane scheduling problem, Proceedings of the International Multi Conference of Engineers and Computer Scientists, Hong Kong.

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)