Sidewalks - Current

This metadata describes the stereocompiled paved sidewalks and paved trails polygons feature of DRCOG Denver Region Urbanized Project Area. The feature was compiled from the Denver Regional Aerial Photography Project (DRAPP) 2020 Aerial Imagery Acquisition and Production. This 1"=100' scale imagery is comprised of 4-band RGBIR color orthoimagery with a GSD (Ground Sample Distance) of 0.5'. Imagery was collected with the Leica ADS40 and ADS80 digital sensors and processed with Leica XPro software. Imagery is projected in State Plane Coordinate System, Colorado central zone using the Lambert Conformal Conic map projection parameters. Horizontal and vertical datums are NAD83(11) and NAVD88(GEOID12A) respectively.The layer has since been taken over for the Department of Transportation and Infrastructure to continue with updates.本元数据(metadata)描述了DRCOG丹佛地区都会区项目区域内的经立体编译的铺砌人行道与铺砌步道多边形要素。该要素源自丹佛地区航空摄影项目(DRAPP)2020年航空影像采集与制作成果。该影像比例尺为1英寸:100英尺，由4波段RGBIR彩色正射影像组成，地面采样距离(GSD)为0.5英尺。影像采集使用徕卡ADS40与ADS80数字传感器，并通过徕卡XPro软件完成后期处理。影像采用兰伯特共形圆锥投影(Lambert Conformal Conic)参数，投影至科罗拉多中央带州平面坐标系(State Plane Coordinate System)。水平基准面与垂直基准面分别为NAD83(11)与NAVD88(GEOID12A)。该图层现已交由交通与基础设施部门负责后续更新工作。