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In this paper, we opposed a two-objective berth allocation problem for the multi-user container teminal systerm that is expected to make Japan's ports more competitive. One objective is the minimization of the total service time (TST), while the other is the minimization of the total weighted waiting time (WWT). The former is desirable to evaluate the terminal operation by the efficiency. However, the large ships with high container volume are likely to be assigned higher service priority in reality. The latter objective works for this. Comparing with the solution by one-objective problem with only TST, the waiting time for ships with a large volume of containers is reduced in this two-objective problem. Due to the efficient usage of baths by multi-objective GA computations, the amount of service time can be achieved with 4 berths which is 2 berths less than the actual case.

Multi-objective Berth Allocation Problem in a Multi-user Container Terminal with Consideration of Ship Service Priority