Noise from road traffic
Sources include engine noise, tyre noise, car horns, car stereos and brakes. The sound of engines is a problem in towns and cities, while in more rural areas tyre noise on busy roads, which increases with speed, is the main source. Low-noise road surfaces, effective noise barriers in sensitive locations, and low noise tyres can all help reduce noise levels. Meanwhile, encouraging people to close car windows when playing loud music, and discouraging the use of 'boom box' car stereos would significantly reduce noise impact.