研究利用GPS手持仪器实测获得小学生放学行动轨迹线,通过GIS的数据分析运算在城市地图中得到行动路径的轨迹点及核密度图像,进而对比分析了两所小学校整体轨迹线的特征,并对小学校门前空间、道路空间及游憩空间的核密度图像进行解析.在此基础上,将行动路径的平均速度小于0.7m/s和大于1.3m/s的轨迹点分别提取出来进行研究,分析得出小学生在校门前附近区域、道路交叉转折处、城市游憩空间等场所的低速行为发生较多.研究对于优化小学校周边城市空间的规划设计具有一定的指导意义.%The research takes the advantage of GPS that records the trail of pupils after leaving school; getting track points and density images of their action paths in a city map through GIS data analysis and operations. After that, the research analyses the peculiarity of the whole track line occurred outside these two schools. In addition, kernel density images of spaces in school's front-gate, road and recreational space are also analyzed. On this basis, the track points of average speed under 0.7m/s and above 1.3m/s are analyzed separately. It turns out that low speed behavior has higher incidence in the spaces of school's front-gate, street and recreational space. In sum, the paper would probably contribute to establishing instructive urban planning standards for the design of urban place adjacent to primary schools.
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