| As the backbone line in the transportation network,urban rail transit lines cannot provide a door-to-door travel service.Travelers often need to use different modes of transportation to reach or leave the rail station,which leads to a rail transit station The range of passenger attraction.The research on the attraction range of the passenger flow of the station can not only provide a basis for the site selection of the station and the land use planning along the line,but also provide a reference for the layout of the connection facilities around the station.Pedestrian and conventional buses are the main ways of connecting rail transit,and there are often differences in the range of passenger attraction under different site attributes and connecting features.Therefore,this paper studies the range of passenger attraction under the two connection methods of walking and conventional bus.First of all,this paper discriminates and defines the attraction range of rail transit stations,analyzes the influencing factors of the attraction range of pedestrian transit and bus passenger flows of rail transit stations,and does some work on data collection,extraction,processing and statistics set forth.Secondly,comprehensively consider the node attributes and site attributes of the station,combine with the location characteristics of the station and the surrounding land use structure characteristics to establish a rail transit station classification system based on the location-land use characteristics,taking Xi’an Metro Line 2 as an example,for different types of stations The analysis of the characteristics of the laid a foundation for the study of the attraction range of rail stations.Third,on the basis of station classification,Gaussian function is used to calculate the pedestrian attraction range of different types of stations;in order to further explore the influencing factors of the station pedestrian attraction range,the partial correlation analysis method is used to obtain the personal characteristics of travelers,The influence of travel characteristics and the characteristics of the land around the station on the attraction range of the station,and the degree of attraction of the rail station to the passenger flow in different areas from the perspective of field theory.In addition,an estimation model of the degree of attraction of rail stations to pedestrian passenger flow is given to provide a basis for the site selection of the station and the planning of surrounding land use.Finally,drawing on the theoretical methods of accessibility,the time cost,expense cost and comfort cost of the traveler in the whole process of travel are analyzed.Based on the traveler always chooses the travel mode with the best comprehensive utility value,the rail transit is obtained Threshold for the attraction range of bus passenger flow.At the same time,considering the influence of the distribution of bus connection facilities on the connection degree of different stations,the cost factor is used to determine the reduction level of bus connection passenger flow,and the calculated passenger flow reflects the impact of the bus service level on the attraction of the station,so as to accurately locate The shortcomings of connecting the bus system. |