Since the project began in July 2017, Murphy has been testing it in the field as part of a complete workflow for analyzing and validating scan and design data, including Topcon's 3D point cloud processing software MAGNET Collage and ClearEdge3D's Verity architectural quality control software. Murphy continues: "The GTL-1000 dramatically reduces the time required to scan and verify projects as needed at any stage. Thanks to the two-in-one function, it is now possible to use the instrument as an extension of the daily work of the construction engineer, eliminating the need to outsource expensive scanner measurements to a specialist. It's so easy to use that I didn't have to spend a lot of time training on how to use it.
We also used this workflow to compare it with the design model of a new steel structure. As a result, mistakes can be detected and design changes can be made before the building materials are brought to the site. With Verity, you can identify areas that fall outside of your tolerances, giving you time to consider your design and scanning results much more carefully than before.
With the GTL-1000 and Topcon software, you can do more than before, which will also help reduce labor costs. It's hard to quantify the cost-effectiveness of this new workflow and technology that can prevent random mistakes, but it's sure to have a big impact."

Chris Emery, Topcon Group's General Manager of Architecture, said: "Until now, the construction industry has always struggled with how to deal with mistakes. There was little that could be done to address interference checking and design issues. Topcon knew that traditional quality inspections were time-consuming, costly, and frustrating for construction engineers and subcontractors, requiring specialized training. With our workflow solutions, you can get your work done faster and easier, and you can also save money by preventing rework.
We are delighted that the Balfour Beatty project team is pleased with the results of this new solution. Working with them, we've also been able to refine workflows that shorten construction time and reduce costs in the construction industry."

The Coopers Hill project was the first to use the GTL-1000, with the first phase of work completed in August 2019.

Finally, Nick Salmon, a key figure in laser scanner metrology at Balfour Beatty, said: "At Balfour Beatty, we are committed to achieving innovative work efficiencies in our business areas and reducing on-site work by 25% by 2025. Topcon's new laser scanner total station will accelerate the construction process and increase productivity by identifying design challenges more efficiently than traditional methods.
We are very pleased to have been able to work with Topcon for more than 12 months to try out this new tool, which will reduce costs and planning time for both clients and contractors, and will bring significant benefits to the industry as a whole."

Photo courtesy of Balfour Beatty plc (March 2019)