Considering Microcirculation Bus Lines Connected To Rail Transit Stations For Route Layout Method

With the continuous development of national social economy,the demand of urban residents to choose urban public transport travel is also growing.With the improvement of residents’ living standards,the requirements for public transport services are no longer only to reach the destination,but also to travel time,transfer convenience and the environment inside the vehicle.At the same time,the travel mode has changed from single travel mode to multimode coexistence.Only by developing the urban public transport network with complete functions,convenient transfer and high service quality,can people’s travel gradually turn to public transport.This paper studies the layout of microcirculation bus lines at rail transit stations.Firstly,it analyzes the necessity and advantages of microcirculation bus lines,summarizes the concept and function orientation of microcirculation bus lines,analyzes the operation characteristics of microcirculation bus lines connecting rail transit stations,and describes the spatial topological structure of rail transit and microcirculation bus lines.Secondly,based on the analysis of the influencing factors of the layout of microcirculation bus lines,the paper evaluates the supply and demand balance of Xi’an regular bus lines,explores the suitable area for the layout of microcirculation bus lines,and gives the selection method of the line candidate stations.Based on the given route constraints,a method of microcirculation bus candidate route generation is proposed.Finally,by processing the signaling data of mobile phones,the OD between potential bus travel demand stations in a given study area is extracted by using the generalized cost function.From the perspective of public transport operation enterprise,passenger travel time consumption and line passenger volume,this paper explores the solution method of microcirculation public transport line optimization in a given research area,and establishes a multi-objective layout optimization model of microcirculation public transport line with the minimum operation cost,the minimum average travel time of passengers and the maximum passenger flow density of the line.NSGA-II algorithm is used to solve the layout optimization of microcirculation bus lines,and an example is applied in the Textile City area of Baqiao District,Xi’an city.The purpose of this paper is to study the layout method of microcirculation bus lines,and set up microcirculation bus lines that meet the needs of passengers and have application value,so that it can better solve the problem of "last kilometer" of residents’ travel.