Haugbotn intends to deploy the new system as a standard tool used in day-to-day operations for all future ViaNova projects, large and small, and will use it to continue to inform many more design decisions for the Falkenborg Bridge project though its completion. After the many years of demos and seeing the “potential” of 3DAR for AEC, it’s great to finally see real-world examples of how readily af- fordable and accessible AR is being utilized for infrastructure projects, on a daily basis—and in real time. Image D. A proposed bridge ramp, as seen from the SiteVision handheld in image A. The new bridge ramp built over the existing roadway and crossing bridge section. The accuracy, number of satellites utilized, and orientation are shown in the upper right, with cross section controls at the bottom.
Image C. As viewed on the SiteVision hand-held, from the vantage point of the road designer in image B, the bridge access ramp passes behind the nearby residential structure. ViaNova used these 3d AR site evaluations to inform design changes.
nates. “It is quite good; we get about 3cm precision in the horizontal,” said Haugbotn. The high precision and orientation also enable a cut/fill feature for evaluating project earthworks progress in real-time. Solution Deployed Based on their early tests, Haugbotn took delivery of a pair of SiteVi- sion field units and deployed them for a major rail bridge project (see sidebar) in November 2019—and within a few weeks of implementing SiteVision it proved to be the catalyst for making crucial design deci- sions. “We immediately gained an understanding of what would be built, and from this we changed the original design,” said Haugbotn. Haugbotn also found the system ideal for a zoning project in Trond- heim. “We can visualize what the roads and structures will look like at each site,” he said. “Everyone involved—designers, local people, authorities—we can show them how it will really look; something we cannot do with [2D] drawings.”
JODIE HARTNELL is a freelance geographer and technology writer based in Western Canada.
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csengineermag.com
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