Research On The Evolution Of Trunk Freight Channels Along Yangtze River

The Yangtze River Trunk Line has been an important freight channel for the society along the river since ancient times.The economy along the river and various types of freight transport channels have developed rapidly along with the construction of the region along the river.Over the past 40 years of reform and opening up,the overall transportation structure along the Yangtze River Trunk Line has undergone multiple stages of development.With the completion of the new Yangtze River Highway and Railway Freight Channels,a comprehensive water-rail-railway freight channel network has taken shape.However,in the current process of planning and construction of the comprehensive three-dimensional transportation corridor in the Yangtze River Economic Zone,the development of multiple transportation corridors still faces problems such as imbalance,less connection,and incompatibility.In view of the strong competition and cooperation between various transport corridors,under the background of multiple transportation modes coexisting along the river,the study of the evolution of the Yangtze River trunk freight corridors is conducive to accelerating the construction of a comprehensive three-dimensional transportation system in the Yangtze River Economic Belt.Give full play to the advantages and functions of various types of freight corridors along the Yangtze River trunk line,and provide solid support for the development of the Yangtze River Economic Belt.Existing related researches mostly use forms such as change trend maps and spatial distribution maps to reflect the development laws of the transportation corridors along the Yangtze River main line within a certain period.Among them,there are relatively few specific quantitative studies using evolutionary analysis tools.With the help of evolutionary game analysis model,this paper explores the competition and cooperation relationship and the overall development law of the water and rail freight channel along the Yangtze River main line.Based on the evolution phase diagram drawn by MATLAB simulation program,the water and rail freight in the region under the current situation is explained.The channel decision-making body competes to develop the evolution trend of the strategy selection probability,and combines the actual analysis of the effects of various factors that have an influence on the strategy selection probability.First,based on historical data,the historical development process of various freight lanes along the Yangtze River trunk line was analyzed,and the problems existing in the development of freight lanes along the Yangtze River trunk line were summarized and the factors including the probability of freight lane development strategy selection,freight lane competitiveness,and freight lane economic factors were summarized.The main factors affecting the evolution of the channel.Secondly,an evolutionary game analysis model is established based on the characteristics of the factors influencing the development of freight corridors.On the basis of modeling and solving,a quantitative function with weight coefficients is introduced to evaluate the competitiveness of freight corridors affected by factors such as freight price,freight volume,and cargo type.Finally,collect and sort out the data of the past yearbooks to make specific calculations on the competitiveness of the freight channel and a series of economic parameters,and use MATLAB software tools to set up the comparison and comparison of different parameters,and comprehensively analyze the changes in the probability of the initial strategy,the changes in the competitiveness of the freight channel,and the economy of the freight channel.The influence of parameters and other factors on the direction of game evolution.The simulation results of evolutionary game show that during the evolution game of the water-rail and railway freight channel in the nine provinces and cities along the Yangtze River,five different evolutionary stability points are finally formed,of which 4 stability points indicate that the three types of water-rail and railway freight channel are at least There will be a cooperation pattern between the two,and one stable point is the situation where the three compete with each other.In this game process,the critical probability of the strategy selection probability affecting the evolution result is in the range of 0.7-0.75.Competitive factors and economic parameters ultimately affect the final outcome of the evolutionary game by influencing the comparative advantages,cooperation gains,and independent competition losses of the three companies in the game,of which the railway freight channel has the most changes in competitiveness and economic parameters.Sensitive,the convergence speed of its strategy selection probability is most obviously affected by these two factors.The research conclusions of this paper will help the decision-making body of the freight channel of the water-rail railway to understand the objective evolution rules of the three freight channels along the Yangtze River trunk line at this stage,and use this as a basis for the development of freight channel development strategy selection and specific development planning.The planning and construction of the comprehensive three-dimensional traffic corridor in the economic belt provides theoretical support.