Reducing Road Vehicle Noise
Road vehicles have to comply with noise-level standards. The police can take action if vehicles have defective silencers or are being driven in a way that creates too much noise.
Road Traffic Noise
There aren't any specific legal limits on noise from roads, but noise levels might be taken into account when planning to build new roads or houses and offices near to roads.
Noise barriers or noise insulation, like secondary or double glazing, may be used to reduce the problem. If noise from new roads exceeds certain limits at existing houses then householders might be eligible for noise insulation grants. These are available through your local highway authority - details of which you can find from your local council.
Guidance from the Highways Agency (opens new window)
If you have road noise coming through a window you could look at our DIY Soundproofing window article.