基于GIS的县域交通网络可达性探讨  

Research on Accessibility of County Transportation Network Based on GIS

作　　者：王先鹏[1] 戚红年[2] 曹荣林[1,2] 

机构地区：[1]南京大学地理与海洋科学学院,江苏南京210093 [2]南京大学城市规划设计研究院,江苏南京210093

出　　处：《地理空间信息》2009年第5期109-113,共5页Geospatial Information

摘　　要：利用GIS技术,以河南省镇平县为例,在评价交通网络可达性的基础上,总结了影响可达性的三个因素:是否与高等级干线公路邻接;在区域中的地理位置居中还是偏远;所在区域道路网络的整体连通性。在这些因素指引下所作的路网调整,明显改善了交通网络的可达性,优化了城镇节点的交通区位。Based on GIS and taking Zhenping county of Henan province, after estimating accessibility of transporation network, three factors which affect accessibility are found out： Whether adjacent to high-ranked main roads ; s the location in the region centered or marginal？ The general connectivity of transportation network of the area which he node belongs to. Adjustion to the network under the guideline of these factors indicates： the accessibility of ransportation network is obviously improved and transportational location of towns are notably optimized.

关 键 词：GIS 县域 交通网络 可达性 

分 类 号：P208[天文地球—地图制图学与地理信息工程]