Grade-Control Gains Ground

摘要

Take a few minutes to click through the websites of major suppliers of positioning and machine-control systems, and you'll likely agree with Topcon Positioning System's Murray Lodge, senior vice president and general manager of the company's Construction Business Unit, that the technical advancement in this area during the past five years or so has probably eclipsed that of the preceding 25 years. This isn't to say, though, that the technical challenges of the past weren't difficult—extremely difficult.