Bahrain International Circuit that sand would blow onto the circuit and disrupt the race. However, organizers were able to keep the sand off the track by spraying an adhesive on the sand around the track. The surface of the track is made of graywacke aggregate, shipped to Bahrain from Bayston Hill quarry in Shropshire, England. The surface material is highly acclaimed by circuit bosses and Formula 1 drivers for the high level of grip it offers. The same aggregate material is used at the Yas Marina Circuit for the Abu Dhabi Grand Prix. The DRS zone is on the pit straight at the
Circuit of the Americas The circuit was the first in the United States to be purpose-built for Formula One. The layout was conceived by promoter Tavo Hellmund and 1993 Motorcycle World Champion Kevin Schwantz with the assistance of German architect and circuit designer Hermann Tilke, who has also designed the Sepang, Shanghai, Yas Marina, Istanbul, Bahrain, Yeongam, and Buddh circuits, as well as the reprofiling of the Hockenheimring and Fuji Speedway. The circuit has FIA Grade 1 license. In a news conference on July 27, 2010, Tavo Hellmund announced plans to build the track on about of undeveloped land in southeastern Travis County. The