Unknown or inaccurately located underground utilities can make or break a highway construction project’s schedule. For the largest construction project in the state of Alabama’s history, the Alabama Department of Transportation (ALDOT) used ground penetrating […]
In a previous blog I noted that in Florida when locating underground utilities in response to a notification of intention to excavate network owners are only required to paint or otherwise mark the ground. The […]
Traditionally when a new pipeline is put in the ground, either its location and depth is only approximately known or it has to be surveyed by a registered surveyor. Now there is another alternative. At […]
Proposed West Link tunnel under central Gothenburg More and more cities are recognizing the tremendous benefits that a digital twin provides to its planners, private architects and engineers striving for compliance with city ordinances and […]
Many see handheld scanners as revolutionizing the construction sector. Portable and handheld laser scanners offer millimeter accuracy and can be used for engineering purposes. Cameras with less precision are being used for rapidly documenting a […]
A number of years ago an initiative was funded under the ARRA economic stimulus package to initiate what was then called LiDAR for the Nation. This has resulted in a USGS initiative called 3D Elevation […]
At the Spar 3D Expo and Conference 2016 in Houston, Texas, Avideh Zakhor from the University of California Berkeley showed remarkable products from her startup Indoor Reality. I blogged previously about the technology when it […]
I blogged previously about a new datum or geospatial reference system which will become the official U.S. datum in 2022. The new reference system will result in elevations changing by up to a meter and […]