A container terminal functioning depends on the interaction of numerous subsystems, which, in turn, are related to other systems. Indeed the performances of the container terminal are affected by many factors such as component subsystems of the whole system, equipment, resources and procedure. To represent the relation between those factors, a System Dynamics approach is used. The approach will show the effect of any changes of those factors to performance, to the whole performance and to the performance of the specific factor. The goal of this paper is to model, through a system dynamics approach, terminal container operations and to provide (propose) a new scenario, based on the reassignment of the resources. This study aims to provide a simulation tool, which able to control performances of each subsystem and of whole system and to predict the effect of performance improvement of sub systems on whole system. The choice of utilizing the SD paradigm derives from the fact that for complex systems, such as the terminal container one, it is very difficult to collect real data regarding its functioning and it is possible show the effect of any changes of those factors to performance, to the whole performance and to the performance of the specific factor.
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