Simulation Study On Container Overdam Transportation In The Three Gorges

Studying the method of container-to-dam transportation in the Three Gorges Project area can fully utilize the transportation resources in the Three Gorges Project area and relieve the increasing transportation pressure in the Three Gorges dam area.Since the completion of the Three Gorges Dam,the problem of transportation congestion has not been properly resolved.The academic research on the congestion problem of the Three Gorges Dam has never stopped.With the rapid economic development in the hinterland of the Three Gorges area,the requirements for the transport capacity of the Three Gorges area are also more urgent.Based on the container transportation in the Three Gorges Project area,this study hopes that the research on the organization of container transportation can provide effective suggestions and help to solve the congestion of the Three Gorges Dam.This paper analyzes in detail the infrastructure conditions and transportation status of the container transported by dams in the Three Gorges Project area.It also describes in detail the status of container transport in the Three Gorges Project area with Chongqing Port,Yichang Port and Wuhan Port as the main ports.Through the analysis of the hinterland of the Three Gorges including GDP,industrial structure adjustment,foreign trade development level,and transport system and transport organization capabilities,the qualitative relationship between the container production and container production was established.The paper uses regression analysis,trend extrapolation,grey forecasting and combination forecasting methods to quantitatively analyze the container production of the Three Gorges hinterland in the next few years.The forecast results will be used to simulate the operation of the container passing dam transportation system.The paper uses the MNL model to calculate the sharing rate of the container's over-damage transportation mode.The MNL model is used to predict the sharing rate calculation model under a variety of transportation modes for a single cargo type.Through the selection of the characteristic variables of the transport mode of the container over the dam,the utility function of the share rate is constructed,and through the calculation of the utility function,the sharing rate of each transport mode during the transit of the container over the dam is obtained.The calculation of the share ratio will provide a mathematical basis for calculating the proportion of dams in the simulation system.Finally,the paper uses the Arena system simulation software to realize the modular construction of the containerized dam transportation system in the Three Gorges project area.The simplification of this complex system plays an important role in the subsequent calculation and analysis.Using the calculation function of the simulation software,the average time and average queue length of ships in the system under different rates of dam turning are calculated.Through regression analysis of the three,it finds that it has a regression relationship,and then draws a return on queue time and captain.Equations,through the calculation of regression equation,can obtain the optimal proportion of container over-transportation by dams.According to the mathematical relationship between the proportion of overturned dams and the mode of transportation,it is concluded that the development of container water and rail transport is the most efficient way to solve the transportation pressure in the Three Gorges area.Way.