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Simulation-based performance evaluation of transport vehicles at automated container terminals

In: Container Terminals and Automated Transport Systems

Author

Listed:
  • Chang Ho Yang

    (Korea Maritime Institute)

  • Yong Seok Choi

    (Korea Maritime Institute)

  • Tae Young Ha

    (Korea Maritime Institute)

Abstract

Significant unproductive and costly waiting occurs during AGV (Automated Guided Vehicle) use, both under the CC (Container Crane) and in the blocks compared to that of a manual yard tractor. A possible solution to this problem is that, in the design of ACT (Automated Container Terminals), ALV (Automated Lifting Vehicles), which can load and unload their own containers, be considered as an alternative. In this paper, the objective is to analyze how increases in the use of ALVs rather than AGVs affects the productivity of ACTs. We derived four inferences regarding the cycle time of vehicles and verified their validity in a simulation. A simulation model of an ACT with perpendicular layout was developed and is described in this paper. From the results of the simulation analysis, we determined the savings effect by cycle time and the required number of vehicles. We demonstrated that the ALV is superior to the AGV in both productivity and efficiency principally because the ALV eliminates the waiting time in the buffer zone.

Suggested Citation

  • Chang Ho Yang & Yong Seok Choi & Tae Young Ha, 2005. "Simulation-based performance evaluation of transport vehicles at automated container terminals," Springer Books, in: Hans-Otto Günther & Kap Hwan Kim (ed.), Container Terminals and Automated Transport Systems, pages 79-100, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-26686-0_3
    DOI: 10.1007/3-540-26686-0_3
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