Open for more surveying news from GPS World!

This month’s column from David Zilkoski highlights a new feature in the National Geodetic Survey Beta OPUS Projects 5.1 routine permitting the use of RTN vectors to support the development of the 2022 Transformation model. 
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Image: Geoff Eccles/ iStock / Getty Images Plus/Getty Images
Trimble has released the 4D Control version 6.4 software, which is an add-on monitoring module for automated rail monitoring.
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AlphaRTK has signed agreements with Rutgers University, West Chester University and Warren County Community College to provide free access to its GNSS correction network for students and faculty.
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Image: Ellingson Companies
In this cover story, a Minnesota-based construction company describes a new system it developed for surveying and mapping underground utilities. Also, professional surveyor Gavin Schrock discusses the benefits of a flexible approach to GNSS rover accuracy and of adding scanning capabilities to robotic total stations.
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