MOBILE MAPPING & 3D SCANNING
DESIGN TOPOGRAPHIC SURVEY
12 MILE SCAN
IL ROUTE 123
Artisan was tasked to provide a design topographic survey for roadway construction. Total length of scan consisted of 12 miles. Artisan provided complete topographic survey for design of the 3 miles of rural and urban roadway. GPS was utilized to set horizontal control, referencing Illinois State Plane coordinate system, then utilizing digital levels, vertical control was established referencing NAVD 1988. Once control was finished, we began scanning the designated areas. To obtain redundancy with the point cloud, multiple passes with scanner were completed. To assist with mapping of the point cloud 360 degree photos are taken at the same time at 25 foot intervals. Once complete the scan was processed and a point cloud was generated. Using design software, we extracted curb line, pavement line, sidewalk, etc. These features were then used to create the existing contours and spot elevations. The location of buildings, power poles, fire hydrants and fencing were also extracted. These are then incorporated onto the final map, along with the property lines, aerial photos and road way plans. The deliverables consisted of providing the owner with a Topographic Survey, (Paper and CAD format), 3D point cloud, per construction photo’ s (360 degree photos of site area and 25’ intervals), and roadway plans.