SIR – In a recent T&A article on traffic calming in Nab Wood , you again use the silly overworked phrase “rat run”.

I have lived many years in the district and I have not seen a single rat, dead, running or racing on any of the roads.

I do, however, agree with a speed limit of 20mph on all residential estates, but not necessarily with the method adopted to implement it.

Philip Bird, Nab Wood Terrace, Shipley