Lidar

4Sight utilizes Light Detection and Ranging (LiDAR) technology as a valuable tool to help clients
create 3D models of both above and below-grade infrastructure to assist with project planning
and asset management.

Powered by a robust software, we at 4Sight can generate accurate Point Clouds above and
below ground. Below ground, 4Sight utilizes an inverse mounted tripod to place the LiDAR
Scanner up to 5m below grade to obtain line-of-sight to the important information within a
chambers’ confined spaces. The LiDAR scanner gathers information up to 70m and is
accurate to 2mm at 10m and 3.5mm at 25m.

4Sight can create 3D models of above ground or below ground features but 4Sight also focuses
on infrastructure below ground. For example, utility chambers can occupy a large space
underground with limited information available from the surface. Utilizing a LiDAR Scanner to
gather information below the surface provides unlimited amounts of measurements within a
chamber. The data can be imported as an RCP file in AutoCAD, or within the free Scene LT
Viewing Software. 4Sight can adjust the exposure time of the photos to improve quality.
These are some of the benefits of LiDAR: workers have safety above ground while the scanner
gathers data below ground; confined space permits are not required; data collection can be
completed very quickly; and the technician can access the 3D Point Cloud anytime after the site
visit for further measurements.