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To quantitatively determine urban land use extents and development densities, sub-pixel impervious surface areas were mapped for this area.
为了量化城市土地利用程度和开发密度，对研究区基于子像元的非渗透表面丰度进行了分类。
At the end of this paper, some new concepts about parking sub-area and parking piece area are put forward, and the theory trend researched on urban PGIS in the future are prospected.
最后提出了停车小区和停车片区的新概念，并对未来城市停车诱导信息系统理论研究动态进行展望。
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