It was interesting to hear how polluted the city of Norwich is and then over the weekend signs have been put up asking drivers to turn off their engine if there is a red light.

It's a pity that the council (Norfolk) haven't sorted out the traffic lights that they sequence correctly when there is traffic approaching there are on green so traffic can flow without stopping.

In the early hours or when there is very little traffic there are a number of sets of lights when you approach them and you can see nothing in any other direction but they turn to red or you approach a set of lights and they take ages to change.

It would be interesting to hear the views of the council.