Study On The Connection Between Urban Rail Transit And Conventional Bus

In recent years,due to the rapid development and construction of urban rail transit in China,its position in the public transport system is becoming more and more important.Conventional bus is one of the most important modes of transportation connecting with urban rail transit.It can not only serve as an extension of urban rail transit,but also provide convenient services for passengers and facilitate the implementation of the transfer concept of"rail transit+conventional bus".Therefore,after the urban rail transit is put into use,it is necessary to optimize the conventional bus routes near the urban rail transit stations in order to increase their cohesion.Firstly,the development situation and mode of urban rail transit and conventional bus are briefly summarized,and their four characteristics are compared and analyzed.On the basis of establishing the model,the determination methods of complete repeat line,partial repeat line and non-repeat line are obtained.Secondly,determine the different types of urban rail transit stations to attract passenger flow.Based on the introduction of clustering method,SPSS software was used to cluster 18 stations of dalian metro line 5 according to the actual survey data.At the same time,the theory of aggregation effect is applied to calculate the passenger attraction range of different types of urban rail transit stations,which is used to determine the layout range of connecting bus stations.Then,a multi-objective optimization model of connecting bus lines is established.The model takes the minimum total travel time of passengers as the primary objective and the minimum number of routes as the secondary objective,and USES genetic algorithm to solve the model.Finally,with the examples of dalian subway line 5,in the prediction about the future and based on the analysis of the status quo,combined with the building of the model,the dalian subway line 5,2 cohesion of urban rail transit site bus are analyzed,and increase the two urban rail transit site bridging with conventional public traffic optimization method.