基于城市栅格与人口密度的最近城市公园分布分析——以上海市长宁区与宝山区为例

LAYOUT OF CLOSEST CITY PARKS BASED ON URBAN GRID AND POPULATION DENSITY: CHANGNING AND BAOSHAN DISTRICTS IN SHANGHAI FOR EXAMPLES

城市公园的合理布局能促进城市的健康发展。基于对城市栅格、人口密度与最近设施的分析,本研究提出了评价城市公园空间分布的方法,即基于城市路网,计算城市所有地块与最近城市公园的距离,得出距离最近的城市公园在步行范围内的居民数量。此方法可以计算出距离最近城市公园不同距离的居民比重,结合人口密度数据找出高密度城区中城市公园稀缺区域,为城市公园的规划选址提供资料。

The rational layout of city parks could promote city’s sound development. Based on the analysis of urban grids, population density and closest facilities, this study proposes the approaches to evaluating spatial layout of city parks. Specifically, based on road network in the cities, it calculates the distances among all the lots and their closest city parks, further acquires the number of residents within walking distances from closest city parks. This approach is able to calculate the proportion of residents at different distances from the closest city parks. Combining the data of population density, it could find out the scarce areas of city parks in high-density urban districts, which provides information for the planning and location selection of city parks.