Sir – It was nice to read opinions from two well qualified drivers at last (Report, October 22). The standard of driving generally has fallen over the last 20/30 years and the introduction of this limit does nothing to change that. The fact that this limit has made things more dangerous is no surprise.

Can anyone tell me how it is possible to drive at a maximum speed of 20mph without constantly looking at the speedometer?

In a car with cruise control it is easy to set the speed at 30mph or more, but this device will not work at such low speeds.

Any responsible driver will want to watch the road and drive at a sensible speed which can be less or more than the 20mph limit, the added problem of having to watch a speedometer does nothing but distract one from safe driving.

The blinkered comment by Paul Smith is the sort of nonsense that comes from classroom theories.

Derrick Stevens, Boars Hill