Modeling And Simulation Of Tian Jin Container Terminal Logistics System Based On EM-Plant

Container Terminal logistics system is an organic system, which is consisted of interactive and dynamic components, such as containers, ships, berths, yards, tracks, quay cranes and yard cranes, trucks, labors and communications in a limited terminal space. Since Container Terminals play a fundamental role in the container transportation to ensure a smooth transfer between different modes of transport, it is very important in internal and international trade. By using modern computer simulating technology, this paper develop computer simulating model and do a deep research on Container Terminal logistics system to provide quantitative support for the decision of the Tian Jin Container Terminal facility configuration ,revealing the interactive relation among the components of the Container Terminal logistics system.At the beginning of the paper, a literature review on the domestic and abroad researches of Container Terminal logistics system is provided introducing some computer simulating model technology apply case on Container Terminal logistics system on the domestic and abroad; secondly this article introduce the element and characteristics of Container Terminal operation system ,specially operation flow , controlling principle (including gate testing principle, ship controlling principle , quay operating principle , yard I/O operating principle , yard running system) ,followed by quality evaluating index and empiristic formulas of Container Terminal .At last, the paper introduces the basic components, layout, loading and unloading process flow of Tian Jin Container Terminals, evaluates the related performance parameters and at last introduces some related empiristic formulas based on the historical data of an actual terminal.According to the idea of the finished eM-Plant hiberarchy and dynamic model and the process characteristics and simulation aims of Container Terminals, the paper introduce the characteristics and modelling process of discrete event;At the specification of eM-Plant ,the paper show the modelling unit and programming function of eM-Plant detailedly .Next, a computer simulation model of Container Terminal logistics system is made based on the software of eM-Plant and is validated by the data of an actual terminal. At last the model is used to analyze the present productivity of an actual Container Terminal and the bottleneck of its logistics system after the terminal is expanded, and provides the decision support for the terminal.