SIR — The move away from speed-camera persecution to one of education by indication is one to be applauded. Despite the exaggerated claims that cameras save lives , analysis of statistics shows this not to be the case. Their claims rely on mathematical a

SIR - The move away from speed-camera persecution to one of education by indication is one to be applauded. Despite the exaggerated claims that "cameras save lives", analysis of statistics shows this not to be the case. Their claims rely on mathematical assumptions, not on evidence - the evidence shows they cost lives. In comparison, where Vehicle Activated Signs (VAS) warning of a speed limit being exceeded, or of other hazards ahead, their effect has been positive, unobtrusive and is welcomed - they are respected.

Lives have been lost in collisions caused by sudden braking in reaction to the presence of a speed camera, sometimes even when within a limit. VAS are respected as they are not after your purse - they are after your attention. Can we look forward to more education and less legislation?

DEREK REYNOLDS,

Woodland Drive, St Albans.