Las Vegas Motor Speedway
On October 16, 2011, the final race of the 2011 IndyCar season, the IZOD IndyCar World Championship, was held at Las Vegas. However, the race was halted by a horrific crash on lap 11 that involved 15 cars, some of which became airborne, and some of which burst into flames. The crash began when Wade Cunningham made light contact with James Hinchcliffe, but the situation turned into a big pile-up of cars. The crash allowed a red flag to be waved almost instantly, due to the remains of the damaged cars and the amount of debris on the track.
CORDA (UK)
ISMOR is an international conference on defence operational research, held annually since 1984. ISMOR is officially endorsed and sponsored by the UK Ministry of Defence and is co-sponsored by the Defence Special Interest Group of the OR Society, and supported by the Military Operations Research Society in the US. An archive of papers from past Symposia is maintained by Cranfield University.