Research On The Scale Of Multiple Rail Transit Modes Based On Preset Sharing Rate

As an emerging mode of transportation,urban rail transit has the advantages of energy saving and emission reduction,and stimulating economic development.It has received widespread attention in recent years.However,China’s current development and construction of rail transit is still in the exploration stage,and there are no mature cases in China for reference.Therefore,there are certain subjectivity in the choice of rail transit system.Advantages such as industrial appreciation dividends,blindly advancing urban construction of subway projects,ignoring objective factors such as high subway construction cost,long construction period,and local actual passenger demand,are not conducive to the sustainable development of the city.In order to ensure the rationality of rail transit construction,this paper proposes a combination of multiple rail transit methods to complete the construction plan of urban rail transit network.This paper analyzes the characteristics of the current mainstream urban rail transit systems in China,comparatively studies the advantages and disadvantages and applicable conditions of various types of rail transit systems,and verifies the feasibility of a combination of multiple rail transit modes to jointly establish an urban rail transit network.At the same time,on the basis of summarizing the existing research results,combined with the relevant research content at home and abroad,the characteristics of multiple rail transit modes with networking are analyzed.First,comparatively analyze three commonly used line network scale calculation methods: traffic demand method,service level method and regression analysis method.Based on this research,it is improved to construct a multiple linear regression equation for calculating the reasonable scale of the rail transit line network,and seek to express the scale of the line network with a variety of economic and social indicators including the sharing rate.On this basis,analyze the economic,transportation and social benefits associated with a reasonable scale of multiple rail transportation modes,and based on the principle of maximum benefit,construct a multi-rail transportation mode combination sharing rate model to study the sharing rate of different rail transportation modes The relationship with the comprehensive benefit,and the optimal solution of the model,to obtain the sharing rate of each rail transit mode when the comprehensive benefit is the largest.Finally,the reasonable scale of each rail transit mode is obtained according to the obtained sharing ratio of each rail transit mode,that is,the reasonable line network scale under the premise of the preset sharing ratio is obtained.