Letter: Short measures

In reply to James Hannaway, who says that those who drink two pints before driving are just as safe as they are when tired or otherwise not at their best (letter, 4 February): being tired or having a cold is part of the human condition which we cannot avoid; we can choose not to drink and drive.

Although we feel a little more confident after a drink, research on highly skilled bus drivers has shown that their judgement was affected long before their skills deteriorated. After a very small amount of alcohol, they were sure they could drive an 8ft bus between posts 7ft 9in apart.

JOHN A ROSE

Giggleswick, North Yorkshire