days later following concerns from teams and other officials, the race organizers officially cancelled the race, choosing to focus their attention on the 2012 running. The 2012 Formula One calendar had the race scheduled for 22 April, the fourth of the season. Construction and design The circuit was designed by German architect Hermann Tilke, the same architect who designed the Sepang International Circuit in Malaysia. The main contractor for the project was Cebarco-WCT. The circuit cost approximately 56.2 million Bahraini Dinars (US$150 million) to construct. It has six separate tracks, including a test oval and a drag strip. The circuit posed a unique problem. Positioned in the middle of a desert, there were worries 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, venue of the Abu Dhabi Grand Prix. Shortly after the Formula One February 2014 testing, the first corner of the track was renamed after seven-time champion German driver Michael Schumacher in honour of his achievements and also in support after he suffered an almost fatal skiing accident late December 2013. Layouts A lap in a Formula One car The DRS zone is on the pit straight at the Bahrain Grand Prix (starting 2012), so turn 1 ("Michael Schumacher turn") is the prime overtaking opportunity. The corner itself is incredibly tight; a typical F1 car must brake approximately before the corner and shift right down to gear one. The width of the track further adds to the overtaking possibilities. Turns 2 and 3 are flat out and gaining a good exit can set up an overtaking opportunity into turn 4. The straight leading to turn 4 is very long with a DRS zone, and the track at the corner itself is incredibly wide, at about thirty metres. Turns 5, 6 and 7 make up a high-speed left-right-left "S" section that leads into turn 8, a right-hand hairpin where taking a wide line can avoid the bump on the apex which unsettles the car.