Building Footprint Ubid Folio

It is an FC (polygon) of buildings located in Miami-Dade County that will use the UBID number for the application of the BE305 program in order to have a unique identifier for each building that participates in the program. UBID numbers was extracted from an existing Feature class BuildingFootprint_UBID, which is a collection of polygon features for all buildings within the Urban Development Boundary (UDB) and outside the UDB, approximately 938 square miles. The planimetric layer for Miami-Dade County was previously updated in 2012 by Aerial Cartographic of America, Inc. (ACA). This feature class contains features extracted from LiDAR captured by ACA in 2015. Definition of particular fields in the Buildings Footprint 2D feature class: Source = {L, P} where L = LiDAR, P = MDC Planimetric Bld_type = {S, L} where S = Small Buildings, L = Large Buildings Updated: Weekly The data was created using: Projected Coordinate System: WGS_1984_Web_Mercator_Auxiliary_Sphere Projection: Mercator_Auxiliary_Sphere本数据集为迈阿密-戴德县的建筑面要素类（Feature Class，FC），将采用唯一建筑识别码（Unique Building Identifier，UBID）适配BE305项目，为参与该项目的所有建筑分配唯一标识。UBID编号源自现有要素类BuildingFootprint_UBID，该要素类涵盖城市开发边界（Urban Development Boundary，UDB）内外所有建筑的面要素，覆盖范围约938平方英里。迈阿密-戴德县的平面测绘图层曾于2012年由美国航空制图公司（Aerial Cartographic of America, Inc.，ACA）完成更新。本要素类的要素数据源自ACA于2015年采集的激光雷达（Light Detection and Ranging，LiDAR）数据。建筑轮廓2D要素类的特定字段说明如下：Source字段取值范围为{L, P}，其中L代表激光雷达采集数据，P代表迈阿密-戴德县平面测绘数据；Bld_type字段取值范围为{S, L}，其中S代表小型建筑，L代表大型建筑；数据更新频率为每周一次。本数据集采用的投影坐标系为WGS_1984_Web_Mercator_Auxiliary_Sphere，投影方式为Mercator_Auxiliary_Sphere。