Freight Scheme Optimization Based On The Port Collection And Distribution Network

In the rapid economic development in recent days,with the improvement of globalization,goods more expand in the global distribution range,speed is more rapid.As a part of international trade major transportation port,is the hub of an integrated transport network,and the port system as a transport system of port cargo concentration and evacuation,but also the key to the sustainable development of regional economy.Are transported to various destinations in the port of arrival of the goods,how to combine can use means of transport and rational planning of transport routes,the flow distribution of goods during transport to achieve optimal,set to become the main problem in the transportation system.combined with Road and rail transport in two the hinterland,which is responsible for the multimodal transport operator of goods traffic distribution reasonable,freight planning to find the optimal scheme.A separate study on the transport of goods and transportation diversity two,respectively according to the transport team time requirements,add different time window constraints.In considering the highway freight transport hub and the destination of the railway two modes of transportation transfer,ensure transport hub and the destination of energy conservation,through the cross variation,iteration,finding the optimal solution.Taking Dalian Port as an example,for the arrival of the goods to the destination according to customer requirements,through the shortest path principle compared with the traditional cargo transport and transport costs often choose a single mode of transport,was spent by freight distribution scheme of the multimodal transport operator organization planning of the lowest cost,the other way is better than that of transport,verify the feasibility of freight scheme designed in this paper.Finally put forward the conclusions and recommendations.