The Optimization Model And Optimization Design Of Shift Rate Problem In Medium And Small Sized Ports

The development and the revival of Chinese economic promotes Chinese Container logistics development. Chinese container throughput increase rapidly in recent ten years, In order to meet the demand of container transportation, port equipment layout is more and more logical. The equipment of groups of pivotal ports, which provide high quality services for container loading, unloading, storage, transportation, packing and handling, could reached the international level. Fierce competition exists between each pivotal ports that are contributing themselves to economic development. Whoese management level is more advantage, who can gain more cake.To reduce the shift rate is one of main method to improve port management level and competitive strength, is the key point to maximum port equipment operation ability, to mprove the yard space utilization, to lower operating costs and to improve stacking yard management level of key problems. Shift rate is an important factor to evaluate yard operation plan and principle rationality of receiving and shift container. Especially for medium and small sized port, the shift rates influence loading work and present it great challenges. As the containers of medium and small sized port are scattered.Spot alone the experience of the operator command, it is difficult to achieve the desired results. Leading to medium and small sized port's shift rate at a higher level. High rate of shift rate seriously hampered the development of enterprises and market satisfaction. For the enterprises to develop markets and expand the scale of causing enormous obstacles.The purpose of this paper is to optimize shift rate of port yard, establish shift rate optimization mode through cause analysis of shift rate, in order to provide reasonable suggestion to reduce shift time. It's good for improving the competitiveness of port and reduce the operation cost of shipping company and for deepening the research of shift rate. Based on the understanding and analyzing of the working process of container shift rate, find out the link that exists shift operation, clear the cause of shift container, put forward the principle of the working process of container shift. Establish port yard container shift optimization model by using the genetic algorithm, and using an examples to prove this research is effective.After test results showed that the design of can be very effective for medium and small sized port.The shift rate around 5% rate control and operators can quickly work out an ideal for the operation of the program.The design greatly reducing business costs, and improving service quality and efficiency.