Tranquility

Peace and quiet in the East Sussex weald is at risk. On the left, a map of current road noise between Lewes and Polegate.

Above 50dB, noise is irritating; regular exposure to levels above 55dB is judged to be a health risk, according to WHO guidelinces.

By the way, don't think the arrival of more electric cars is going to solve this - above 25mph an hour, the biggest noise from all vehicles comes from tyres on tarmac.

Look at the width of the noise impact of the existing A27, a single carriageway. Imagine the width from a new dual carriageway.