基于GIS的公交换乘网络构建及可达性分析  

Bus transfer network construction and accessibility analysis based on GIS

作　　者：程刚[1] 郭磊善 CHENG Gang;GUO Leishan(School of Engineering,Tibet University,Lhasa,Tibet 850000,China)

机构地区：[1]西藏大学工学院,西藏拉萨850000

出　　处：《江苏大学学报（自然科学版）》2024年第2期191-197,共7页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51968063);西藏自治区揭榜挂帅项目(XZ202303ZY0005G)。

摘　　要：为了提高公交换乘效率、优化公交系统,基于GIS软件构建公交换乘网络,运用该网络对换乘可达性进行了测度和分析.结合Space-P模型和网络分析法,以拉萨市城关区为研究区域,基于公交线路路径、站点、交叉口等基本信息构建同站换乘子网络.结合公交站点服务范围、步行通道路径、交叉口等信息构建异站换乘子网络.二者协同实现了基于ArcGIS的公交换乘网络构建,并依据该网络对公交线路的乘客在车时间和换乘系数进行测度和分析.结果表明:构建的换乘网络能够对乘客在车时间进行良好的测度,乘客在车时间最大值为68.68 min,最小值为2.00 min,乘客换乘在车时间平均值为29.90 min.该换乘网络能够对换乘系数进行良好的测度,得到有效换乘线路90 300条,换乘系数最大为4条(线路为62条),最小为0条(线路为1 354条).采用可达性度量模型,可实现对公交站点时间可达性和换乘可达性的良好测度和分析.To improve the bus transfer efficiency and optimize the bus system,the bus transfer network was constructed based on GIS software,and the network was used to measure and analyze the transfer accessibility.Combined with Space-P model and network analysis method,the same-station transfer sub-network was constructed based on the basic information of bus route paths,stations and intersections in Chengguan District of Lhasa City.Combined with the information of bus station service scope,pedestrian path and intersection,the different-station interchange sub-network was constructed.The two sub-networks were collaborated to realize the construction of bus transfer network based on ArcGIS,and the passenger on-board time and the transfer coefficient of bus routes were measured and analyzed based on the constructed transfer network.The results show that the constructed network can measure the passenger on-board time well,and the maximum value of passenger on-board time is 68.68 min with the minimum value of 2.00 min and the average value of passenger transfer on-board time of 29.90 min.This network can well measure the interchange coefficients to obtain 90300 effective interchange routes with the maximum interchange coefficient of 4(62 routes)and the minimum value of 0(1354 routes).Using the accessibility metric model,the good measurement and analysis of bus stop time accessibility and transfer accessibility can be realized.

关 键 词：公共交通 公交网络 换乘网络 GIS 可达性 Space-P模型 网络分析法 

分 类 号：U121[交通运输工程]