关键词: 集装箱码头, 桥吊服务, 仿真模型, 排队系统

Abstract: In this paper we discuss the simulation model of queueing system for the quay crane service system on a container terminal.With the models built through Witness，a series of simulation experimentations are carried out.In the parameter analysis of M/M/m system，the performance indexes are improved with the increase of the number of cranes.On the variation curves，there always exists an inflexion point after which the amplitude of variation is no more distinct as before.The x coordinate of the point is just the optimal number of cranes.After comparing and analyzing different queueing models，it is concluded that the M/M/m queueing system utilized in quay crane service system is much better than m M/M/1 systems in performance and utilization，and easier to improve.The research is also applicable to the analysis of the queueing systems in the other operations on container terminals.

Key words: container terminal, quay crane service, simulation model, queuing system