Opponents of Madrid's new Formula One circuit have raised concerns after noise levels during recent tests were almost double the legal decibel limit. Local residents recorded average noise levels of 102.7 decibels, with peaks between 107.7 and 109.1 decibels, during tests using Formula Three cars. The maximum permitted noise level in residential areas is 55 decibels.
The 5.4km Madring circuit, built in the north-east of the Spanish capital at a cost of €83m (£71m), is intended to attract visitors and boost the local economy. The inaugural Spanish Grand Prix is set to take place at the track later this month.
Madrid city councillor Borja Carabante stated that Formula Three cars emit more noise than Formula One cars, suggesting there will be less noise during the Grand Prix on 11-13 September. He also mentioned that measures like acoustic panels would be implemented to minimise disruption.
However, the Stop F1 Madrid platform, formed a year ago, has reported complaints from residents regarding the noise and the expected strain on public transport. Environmental groups have also questioned the construction, citing the felling or moving of over 700 trees and the destruction of a seasonal wetland.