Yas Marina Circuit (structural contractor), as well as specialised subcontractors like Voltas (MEP), PKE-Siemens (MEP), Able-Middle East (earthworks), Hamilton International (interior) and Bau Bickhardt (track) to name a few. The circuit was constructed with a permanent lighting system provided by Musco Lighting, similar to that also installed at the Losail Circuit in Qatar. Yas Marina Circuit is the largest permanent sports venue lighting project in the world; previously that title was held by Losail. The surface of the track is made of graywacke aggregate, shipped to Abu Dhabi from a Bayston Hill quarry in Shropshire, England. The surface material is highly acclaimed by
Marina Bay Street Circuit Circuit ahead of 2015 Singapore Grand Prix. The modifications run from Turn 11 to Turn 13; drivers will still turn right at Turn 11 but it will now kink left slightly on entry, with the track shifting to the left-hand side of Fullerton Road. This will change the profile of Turn 12, as drivers will now use the other side of the Anderson Bridge, while the hairpin at Turn 13 has been widened by a metre in order to increase overtaking opportunities. Marina Bay Street Circuit starts with a specially made pit straight with the first DRS zone. The pit