Construction Verification Reduces Rework and Risk

Perform QA/QC in near real time and catch issues early with daily quality control checks.

Enhancing QA with Advanced Technology

Rework and delays can drive costs up by 20% or more. Traditional spot checks often miss critical issues, leading to overruns and lost profit. Topcon’s construction verification solution helps close those gaps—improving accuracy and reducing costly errors.

About the Workflow

This solution streamlines as-built 3D data capture and QA/QC processes to detect construction errors and variances almost in real time. The GTL combines robotic layout with laser scanning in one instrument, enabling you to collect as-built data during layout. Paired with Verity’s automated QA/QC workflow, it compares field data to the BIM model—helping you verify all work daily and catch issues early. Comparing scan data with the BIM model enables construction verification workflows up to 10 times faster than traditional spot checks.

Technical advantages

Reduce risk of rework

Increase profitability

Reduce schedule delays

Market segments

Structural concrete and floor flatness and levelness

Mechanical, electrical, and plumbing

Structural and secondary steel

Plant and equipment installation

Layout and survey

General contractors

The Complete Solution

What sets the GTL apart is the seamless workflow that controls, manages, and delivers accurate data and results throughout the project. The GTL solution replaces spot checks with a breakthrough workflow that verifies construction in hours—not days—cutting errors and costs significantly.

What is Construction Verification?

MAGNET and GT series building construction testimonial

Workflow benefits

Verify the Accuracy of Recently Installed Work

This solution streamlines layout, 3D scanning, and data processing into a few simple steps—enabling a fast QA/QC workflow that verifies 100% of your work in the time it would take to spot check just 5% using traditional methods.

Reduce Rework, Redesign, and Project Costs

The rapid QA workflow catches construction errors before they become costly issues. The GTL-1200 merges layout and scanning into one instrument—cutting expenses tied to extra equipment, training, and on-site labor.

Get More Accurate Quality Assessments

While most 3D QA/QC tools use visual heat maps to show variances, Verity goes further. Its advanced computer-vision algorithms generate precise quantitative variance data for each element—delivering a deeper, more accurate assessment of how well the project matches the design.

Share Findings with All Stakeholders

Collage Web provides an intuitive online platform for viewing point clouds, making it easy to collaborate and communicate insights with the entire project team.

Automatically Update As-Built Models in Autodesk® Navisworks®

With one click, bring coordination models up to date in Navisworks to reflect actual site conditions. Export point clouds of out-of-tolerance elements directly to the design platform, enabling fast updates by subcontractors.

Download GTL Construction Verification brochure

How does it work?

SCAN/LAYOUT

PROCESS

AS-BUILT & VERIFY

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