Flow Charts Based Discrete Event Models For Container Terminals

As the containerized freight volume continues to mount up, port operations arealso confronted with unprecedented opportunities and challenges. Container terminalsare asked by shipping companies to shorten as much as possible the vessel stayingtime in the port so as to reduce costs and increase profits. But it doesn’t mean to justblindly increase the volume of the handling facility to meet this requirement; it shouldrather implement a reasonable and effective disposition of existing resources toachieve the objective of shortening the staying time of vessels in the port. Therefore,it is particularly important to study the integrated optimization of port handlingresources. The study of optimizing the disposition of handling equipment in containerterminals by this paper is not confined only to the study of handling equipment;instead.The first part, in the "berth allocation of resources" model is built to ship on berthtime shortest as the goal, to establish the dynamic berth allocation of resources of theinteger programming model, using wharf actual data through the eM-plantsimulation system verified it is concluded that the berth dynamic allocation model isfeasible and effective conclusion.The second part, in "the shore operations" model in the construction, in order toship operating time minimum as the goal, combined with shore bridge handlingoperating line distribution, operation sequence and shore bridge deployment modeestablished the integer programming model, and through the actual data compilationcase validation draw: the arrival density and the shore bridge distribution moderelations, so as to effectively solve the land bridge between the berth how to allocateproblem.The third part, in the "horizontal mechanical configuration" model is built, byestablishing a network minimum flow optimization model to solve set card schedulingscheme optimization problem, the terminal practical work data design a examples, anduse a container terminal level transport model is solved, got the best collection cardconfiguration scheme.The study of optimizing the disposition of handling equipment in containerterminals by this paper is not confined only to the study of handling equipment; instead, the study focuses on the issues of resource disposition in the three aspects ofthe overall terminal handling, then separately constructs models for detail analysis andconducts overall optimization and improvement on the container handling system.The biggest advantage is in its universality which is suitable for any port that adoptsthis handling process.