Impervious Surface 2015

The dataset contains basemap features that are typically classified as impervious surface, captured in 2015. Some examples of Impervious Surfaces include: Airport Taxiways, Helipads, Outdoor Building Stairs, Buildings, Sidewalks, Roads, Alleys, Driveways, and Swimming Pools.本数据集包含2015年采集的、通常被归类为不透水面(impervious surface)的底图要素。不透水面的典型示例包括：机场滑行道、直升机停机坪、室外建筑楼梯、建筑物、人行道、道路、小巷、私家车道以及游泳池。