Study On Freight Flow Assignment Of Inland Container Transport Network Based On Scenario Optimization

In recent years,China's transportation network has developed rapidly,the level of transportation infrastructure has been continuously improved,and the process of transportation integration has continued to accelerate.Inland container transportation network is an important part of transportation network.The rapid development of container transportation also puts forward higher requirements for the development of container transportation network system.The improvement of the network structure is conducive to rational distribution of goods flow,reducing costs,improving efficiency,and better meeting transportation needs,achieving integration and regional coordinated development.The core of the container transportation network is the distribution of goods flow and the optimization of network structure.Due to the development of the economy,the transportation demand in the inland container cargo distribution system shows more and more uncertainty.Therefore,it is of great theoretical and practical significance to strengthen the study of freight flow distribution under stochastic demand conditions.Considering the characteristics of stochastic demand,a robust optimization model based on regret values is established for the distribution of freight flow in inland containers.We obtain the distribution plan of logistics under different scenarios.Observing the concentration of cargo flow and discovering the distribution law of cargo flow in the inland container transport network.Based on the optimization scheme,the network is further optimized,and community structure and small community cohesion of node are found by using community discovery algorithm.Through the analysis of node characteristics and transportation routes in the community,key nodes and key paths in inland container transportation network are obtained,and sensitivity analysis is carried out to find ways to further improve the operation efficiency of container transportation network.Combining with the example of container transport network in Northeast China,The example shows the validity and applicability of the method,which can provide scientific decision basis for the planning and construction of inland container transport network.