THE ROAD NETWORK ACCESSIBILITY AND SPATIAL PATTERN OF GUANGZHOU-FOSHAN METROPOLITAN AREA
利用GIS和引力模型等方法构建综合评价指标，分析广佛都市圈路网可达性，发现其呈现等级圈层和核心-边缘结构，为交通规划提供建议。
By using GIS tools,based on gravity models,network connectivity and minimum distance metric model,build a comprehensive evaluation index to analyze the road network accessibility of Guangzhou-Foshan metropolitan area.It is found out that as a result of the natural environment,economic and spatial distance and other factors,the accessibility of Guangzhou-Foshan metropolitan area shows an obvious grade-layer structure and core-periphery structure.Extending from west to east,the accessibility decreases from the geometric center to the periphery.And the accessibility in north side of Pearl River is better than the south side.Finally this paper provides some advice to the transportation planning of Guangzhou-Foshan metropolitan area.