There are various solutions to noise eminating from main roads. The house owner can add sound insulation via double glazing, thick curtains and a fence to block off the noise. The other option is to complain to the government and make changes in laws, requiring cars to emit a certain db level. The next step is to properly police these laws with noise cameras. Cars driving past residential areas that exceed 60 dB after midnight would have their number plates captured on camera.
The fine? A forced modification of their cars to meet strict noise regulations.