The ADR track is an oval approximately 1-1/3 miles in length (7200’), with a 700 foot Southern radius and a 450 foot northern radius. It has three event lanes, each one approximately 12 feet wide. The outer-most lane is a smooth blacktop surface with a 7% elevation. The center lane on the west side is referred to as the pavé lane. It is made up of two 40’ wheel footpaths of Belgian blocks and was hand laid to fit a specific test profile. The inner lane on the west side is the car lane with similar events to Chalma Road. On the East side, the inner lane is the truck lane and the center lane is the car lane.