The Research Of Container Inland Transportation Network's Optimization Of Ningbo-Zhoushan Port

With the changes of the pattern of regional economy and the fierce competition among the domestic ports,the service of coastal port logistics gradually infiltrates the mainland area.It cannot do without the inland transportation network with mutual contact of the ports and inland.Firstly,this paper studies the theoretical research and related optimization methods about port transportation,retreating and dividing the level and pattern of port transportation on the basis of it.Then it expounds the present situation of container inland transportation of Ningbo-Zhoushan port and points out the main problems existing in its development,as the inappropriate container inland transportation network layout of Ningbo-Zhoushan port,In order to point out the necessity of container transportation network optimization,this paper uses the method of exponential smoothing and gray prediction to forecast the container of Ningbo-Zhoushan port,then combines both results and revises again.The prediction result shows that the container of Ningbo-Zhoushan port will face faster growth for a long time in the future,quantitatively showing the pressure on the transportation system and highlighting the necessity and urgency of the optimization of Ningbo-Zhoushan port's container transportation network.In order to solve the problems of the unreasonable layout of line network,this paper takes Yiwu,Hefei and Yingtan as the research objects,establishing the minimum cost model of transportation network,aquiring the ratio condition of every transportation line of the network according to the results of the model,putting forward two guess and verify it one by one.Last but not least,finding the irrationality of Ningbo-Zhoushan port container inland transportation network by analysing.Finally,this paper puts forward some measures and suggestions aiming at the optimization of Ningbo-Zhoushan port container inland transportation network.