High-speed, high-resolution laser scanners that monitor the clearance envelope of railroad tracks have been available to European and Asian companies for some time. Now, a rail track scanner has been introduced to North America that is designed to capture track geometry and track envelope data in one pass, creating a 3D point cloud. The product claims 3mm accuracy. Photo : Courtesy Of Amberg Technologies Employed this GRP5000 to survey New York’s East Side Access, and No. 7 subway and was one of the first engineering firms to use it. “The amount of time required on the track is decreased,” says
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.