基于ArcGIS的上海社区人行道使用频度分析——以莘庄为例

城市人行道是市民日常行为活动的重要发生场所,合理的人行道建设对完善城市公共空间和建设宜居社区有重要意义。为分析社区人行道的使用频度,本文以上海莘庄社区为例,利用ArcGIS最短路径分析方法,从交通、休闲两个层面对人行道使用频度进行叠加模拟分析,并通过现场调研对模拟结果进行对比验证。研究发现,人行道使用频度与目的地、小区出入口及户数、街道出入口数量、两种使用频度的相对权重等因素有关;ArcGIS最短路径分析法能快速、定量的分析人行道使用频度,可应用于社区尺度人行道的前期规划中。本文还针对不同使用频度人行道在交通、休闲、景观层面存在的问题提出优化对策,对上海社区人行道建设具有一定的指导意义。

Analysis on the Frequency of Community Sidewalk Use in Shanghai Based on ArcGIS:A Study in Xinzhuang

Urban streets are important place for residents'' daily activities.Reasonable construction of sidewalk attaches great significance to the improvement of the urban public space and livable communities.To analyze the frequency of the community sidewalk use,we overlaid and analyzed that from the aspects of traffic and leisure with the method of the shortest path analysis by ArcGIS.We selected Xinzhuang community in Shanghai as a typical sample for the case study and used the observation results for contrast verification and error analysis.The study showed that the frequency of the sidewalk use is related to the destination,the entrance and the households of the residential quarters,the number of the street exit,the relative weight between the two kinds of the frequency etc.This ArcGIS shortest path analysis method can quickly and quantitatively analyze the frequency of use and be applied in the early stage of community scale sidewalk planning.Finally,we put forward some optimization strategies in terms of traffic,leisure and landscape aimed at the problems exist,which have certain guiding significance to the construction of community sidewalks in Shanghai.