Sir: You report (27 February) a 28 per cent drop in accidents on the busiest section of the M25 after the introduction of variable speed limits, which discourage lane-changing. The method of driving thus encouraged - staying in lane - is the opposite of that favoured by PG Russell-Smith (letter, 25 February). Those of us who stay most of the time in the middle lane of a motorway, instead of swinging constantly between lanes 1 and 2, may be on the side of the angels even if we have no God-given right.
I didn't find motorway driving in France and Germany any safer than in Britain.
Lower Slaugher, Gloucestershire