Preston is one of 23 urban areas being monitored by the government in a bid to cut spiralling noise pollution.
Sounds coming from the M6, M55 and major roads mainly in the east of the city are reaching noise levels of more than 75 decibels (dB), but western parts are enjoying quieter levels under 55dB.
According to the Health and Safety Executive, workers should not be exposed to sound levels of more than 85 to 90dB.
Click on the link above to hear how noisy it is where you liveLucy Ward, 24, of Ladybank Avenue, Fulwood, close to the M6, said: "Around rush hour there's a constant rumble. When you have a lie-in, you can still hear the traffic at 8am.
"I think Preston is quite a small city and overcrowded with a lot of cars. But I live near the motorway and that's the price you pay."
Click here to see how noisy it is where you livePreston city councillor Anthony Gornall, cabinet member for environment and regeneration, said the city is looking to reduce traffic and the noise that comes with it.
He said: "It is an issue in the city and has got a number of sources such as the inappropriate playing of loud music. The issue of cars is a perennial one and the pressure is getting greater.
"It's down to city planners to help move traffic out of the city and we are going to be looking at this.City growth does attract more traffic and it's a case of how you manage that."
'Noise maps' compiled by the Department for Environment, Food and Rural Affairs (Defra) can be viewed online at www.defra.gov.uk/noisemapping.
Users are able to search by postcode to access maps showing different levels of noise from various sources over a 24-hour period, or during night-time hours only.
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