Trends Winter 2017 - Page 14

Example of point density. Enlarged area helps to show individual points. team with the next phase of requested information – saving the County time and money. Other benefits noted HD scanning also accurately generates as-built surveys – that is, surveys done to document how a project’s original engineering plans compare with the actual end result after construction – and brings additional advantages beyond that. It can literally be a lifesaver in instances in which project sites present hazardous conditions to the team. “I would say half of our scans are due to safety or inability to access the area of interest – like a hydrodam,” said Ayres surveyor James Cappeart. “You can’t climb out on the spillway and run up and down it.” Electrical substations present another scenario where safety can be a concern. Incorporating HD laser scanning reduces that risk. As Cappeart noted, “the scanner is the logical choice” to collect data for power industry clients because it captures the needed information by shooting a laser in varying directions and doesn’t physically touch anything. “Those lasers come back and sort of paint the picture for us,” Cappeart said. “Everything is measurable so, from there, you can pull out the measurements you need.” Again, because no data is missed with HD laser scanning, third-party engineers and other end users can choose the single coordinated values and targeted features they’re looking for. That data can then be used for such things as asset inventory of facilities, future expansion capacity, structural conditions and analysis, and as-built collection for maintenance. Continued on page 16 14│ TRENDS