Research On The Organization Mode Of Cross-line Operation Of Urban Rail Transit

With the vigorous development of rail transit in major cities in China,the rail transit network is moving from a single line to networked operation,and the construction focus is also transitioning from urban lines to suburban lines.Stations have led to a dramatic increase in passenger flow pressure at interchange stations and prolonged travel time for passengers,which has reduced the attractiveness of rail transit.On the basis of summarizing the research achievements of cross-line operation organizations at home and abroad,this paper analyzes the implementation conditions and train operation plans of cross-line operation organizations,builds an optimization model of cross-line operation organizations’ driving density that maximizes the benefits of passengers and enterprises,and uses genetics Algorithm to solve.The specific content of the thesis research is as follows:(1)The concept of the cross-line operation organization model is explained.The daily average transfer coefficient of major cities in the country and the passenger flow at the transfer station illustrate the necessity of operating cross-line trains.Disadvantages and service levels of passenger transport organizations,summed up the four types of cross-line operating organizations,and detailed analysis of typical cases in Tokyo and Paris.(2)Qualitatively analyze the implementation conditions of the cross-line operation organization mode,including the form of cross-line,cross-road form,station and station line layout,and various equipment conditions;quantitatively analyze the train operation plan of the cross-line operation organization mode,and analyze based on The inter-train travel interval of passenger waiting time,based on the cross-train train density of different transit methods,and the cross-line passenger flow conditions based on the one-way cross-section passenger flow;at the same time,the influencing factors of the cross-line operation organization mode were analyzed.(3)Taking the maximum passenger travel efficiency and the minimum enterprise operating cost as the objective function,considering the selection probability of cross-line passengers,starting from two different cross-line operation organization modes of station transit operation and common line common rail operation Cross-line operation organization driving density optimization model and design genetic algorithm to solve.(4)Take the Shenzhen Metro Line 14 crossing into Line 11 as an example,build a model and use MATLB to solve to obtain the optimal traffic density of the local train and the cross-line train.The train operation map was paved,and at the same time,the passenger flow conditions of Line 16 into Line 14 were checked in the future.