Zoning PDO

Polygon feature of the zoning classification defined at the parcel level, but typically managed in larger units this is documents of specific requirements for certain areas.本数据集为地块级界定的分区分类多边形要素（Polygon feature），尽管这类要素通常以更大的管理单元进行管理，其承载的内容为特定区域的具体要求文档。