GIS在布局城市广场、公园中的运用——以武汉市中心城区为例

ANALYZES ON THE DISTRIBUTION OF SQUARES AND PARKS OF URBAN OPENING SPATIAL WITH USING THE GIS——A CASE STUDY OF THE CENTRAL CITY ZONE IN WUHAN

以武汉市中心城区的广场、公园为例,基于GIS技术首先采用对各广场、公园做Voronoi图的方法,得出其各自的服务区域,并结合相关数据计算各个Voronoi多边形内的实际人口数和可承载人数,通过比较各个Voronoi多边形内的实际人口数和可承载人数,得到现有的各个广场、公园是否能满足人们的需要;其次采用对各广场、公园做缓冲区图的方法,在基于考虑交通可达性的情况下,得出在实际布局时新的广场、公园的增设位置,从而为布局城市广场、公园提供可借鉴的方法。

Taken the public squares and parks of centre district in Wuhan City as example. Firstly, it made Voronoi diagram to get respective coverage with using GIS, and calculate the actual population and volume of each area; then compare the volume and the actual population in order to get the outcome that whether each public square and park could satisfy people＇s demand. Secondly, the piece made buffer diagram under the situation of considering traffic and elaborates the method that how to plan a reasonable distribution of the city squares and the parks.