Viscan Transforms B29 Highway Project With Digital Twin Technology

• Proeksa Meas
• 12 September 2026
• Construction Focus
• 957 Views

Viscan GmbH has transformed its reality capture workflow for the B29 highway expansion in Baden-Württemberg, turning an initially unreliable digital process into a high-performance digital twin system for one of Germany’s first fully digital construction sites.

The B29 project includes nine new structures, bridges, and retaining walls. Viscan’s role was to provide construction teams and project stakeholders with an accurate, continuously updated digital representation of the site, documenting progress on a daily basis using drones and handheld scanners.

However, the company initially faced major problems with its cloud-based processing system. Large volumes of daily reality-capture data caused performance and accuracy issues, forcing employees to manually rework scans and putting the project schedule at risk.

To address the problem, Viscan partnered with Bentley Systems and adopted iTwin Capture as its cloud processing engine. The new workflow enabled the company to automatically generate high-quality reality meshes and georeferenced point clouds from large datasets, eliminating much of the manual rework.

Viscan also used Orbit 3DM to bring mobile mapping data and other project information into a unified 3D environment. The platform supported the company’s artificial intelligence workflow, allowing AI to identify objects and changes across millions of images while human experts verified and corrected the results directly within the 3D environment.

According to Viscan CEO Nicolai Nolle, the new system significantly improved both reliability and efficiency.

The results included a 60% faster data-processing workflow, a 70% acceleration in on-site documentation, and a 20% reduction in overall construction time. Administrative processes also improved, with variation-order processing becoming 40% faster and invoice reviews accelerating by 60%.

The availability of a reliable daily digital twin also reduced the need for physical site visits, enabling a 50% increase in remote construction supervision.

Viscan said the project has demonstrated how a reliable digital foundation can help construction teams overcome data-processing bottlenecks while supporting AI-driven analysis and more efficient project management. In the last six months alone, the company said it has provided around 40,000 reality models to customers.

The B29 project highlights the growing role of reality capture, digital twins, and AI in modern infrastructure construction, demonstrating how integrated digital workflows can improve accuracy, speed, collaboration, and remote project supervision.

Learn more about the iTwin Capture workflow and get started for free with iTwin Capture Modeler Flex.

• Bentley
• Digital Twin
• iTwin
• AI
• Bentley Systems
• iTwin Capture