How does the Indianapolis Motor Speedway go from a 2.5-mile oval to a 2.439-mile road course and back again? On this episode of Behind the Bricks, IMS President Doug Boles highlights the work, time and effort that goes into converting the historic oval to an action-packed road course. It includes 48 barriers, 576,000 pounds of concrete and about 15 hours of work for a full conversion.