空间句法在城市公园可达性研究中的应用——以武汉三环线内城市公园为例

The Application of Spatial Syntax in the Accessibility Study of Urban Parks——A Case Study of Wuhan

以武汉市三环线以内的29个综合公园为研究对象,采用CAD、ENVI、GIS和Depthmap10空间句法软件,基于2014年7月精度为多光谱30m×30m、全色谱15m×15m的landsat8遥感影像和Google影像建立武汉城市公园句法模型,以平均深度和整合度度测城市公园可达性并划分等级。结果表明:2/3的公园可达性位于前3级;将人口密度分布与公园可达性进行叠加分析,发现公园可达性等级分布与武汉市城市人口密度等级分布具有较高的一致性,说明在500m缓冲区范围内,武汉市三环线内城市公园总体布局比较合理。

Taking 29 city parks within the Wuhan Third Ring Road as the research object,CAD,ENVI,GIS and Depthmap10 spatial syntax software are used based on the landsat8 remote sensing images with multi-spectrum 30 m×30 m and full chromatogram 15 m×15 m in July 2014.The images establish the syntactic model of Wuhan city parks,and the average depth value and integration degree are used to measure the comprehensive park accessibilities and ranks.The results show that 2/3 of the park accessibility is located in the first 3 levels;after the population density distribution and the park accessibility are superimposed and analyzed,it is found that the city park accessibility level distribution is compared with the urban population density level distribution of Wuhan.The high consistency indicates that the overall layout of Wuhan city parks is reasonable in terms of the 500 m service radius.