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Crossrail augmented reality trials successful

A senior figure has revealed the productivity benefits from using augmented reality technology on the construction of Crossrail.

Marvin Johnson, engineering data specialist at Crossrail project delivery firm Bechtel, said the system had reduced the time burden on project planners.

Augmented reality allows digital design information from four-dimensional computer models to be overlaid on a real site using iPads and even user-worn items.

This can give workers information they need to make decisions on site, increasing project efficiency.

Markers can be placed on site that allow technology to know which part of a model to place over real images at any given point.

“We were able to collect as-built information and round-trip it into the CAD model using automated procedures,” Johnson told a Fiatech-run webinar this afternoon.

“There was a 5% increase in technical support needed but a 36% rise in planner productivity. It is already starting to justify the effort.”

Johnson said the development of construction helmets with safety visors that displayed augmented reality images showed how far the system had come, and its future potential.

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