Sir: The temptation to 'undertake' is increased by drivers who spend their time 'cruising near the legal limit' in the middle lane (Letters, 30 September). If such drivers spent less time complaining about 'cars packed with gesticulating football fans' and more on observing proper lane discipline, there would be little or no need for 'undertaking'. Too many drivers do not seem to understand that the middle lane of three-lane motorways is not for 'cruising', but for overtaking slower drivers on the inside lane, to which they should return when overtaking has been completed.
E. A. COX
Harrogate, North Yorkshire