Research On Horizontal Transport Optimization System Of Container Terminal

In the late twentieth century,high technology such as biology,information computer network and sensor testing have made significant progress,and greatly promoted the development of society.Technology like EDI and GPS have been widely applied to ports,which not only promote the ports' development,bur also bring new problems to their planning and management.Due to the increasing population and the land resource becoming more and more expensive,it is impossible to expand the port area without limitation.So it becomes a common problem for all port managers that how to tap potential improve management and increase throughout capacity under the existing port size.There is a big gap between China's port management level and that of modern ports in developed countries.For ports of almost same size,our throughout capacity is far less than abroad,which worth being thought by the managers and scholars.Obviously it is not the best way that solely relies on the increase on the equipment investments despite that it can faster the handling speed.It is more vital to increase the handling efficiency of the containers.In order to achieve that,a reasonable container terminal handling process including the yard planning and the machine deployment must be established.The horizontal transport system of container terminal is responsible for the loading, uploading and transport of the containers inside the port,which means the container lorry dispatch is a quite complex mission.What's more,the increasing amount of containers and lorries,the expanding construction of the terminals as well as the frequently updating of the dispatch rules are making the dispatch job even more complicated.Thus,how to improve the operation efficiency of the container lorry to the maximum extent has become the urgent need to increase the terminal's productivity.On the basis of fully analyzing the research background,this paper puts forward that the container lorry will be no longer confined to a certain operation line,but to realize the lorry's unified scheduling for the whole terminal operation,including ship's loading operation,ship's uploading operation and box shifting operation between yards. After one task,a lorry can select next one nearby.And the service object will cooperate with the entire terminal operation surface dynamically.According to the above analysis, a optimization model of lorry dispatch has been created and solved by genetic algorithm in this paper.Based on this,an optimization system of container lorry dispatch has been built through Visual Basic.Finally,applied to this system,an example has been optimized,and the dispatching result has been given.