Drones are flown over the construction site once a week during off-hours and take videos that are converted into 3D images, which can then be compared to construction plans to highlight areas of structure that are falling behind schedule, MIT Technology review reports.

Turner Construction Company, who are involved in the project, told SCN: “We are supporting and advancing research into tools that track overall progress of construction. As part of that research, we are taking the video and still images we have of the project to create a 3D image of the project. We are then able to compare that model with the BIM model to efficiently and comprehensively analyze overall progress on the project.”

The stadium is set to open in October 2016.