21 October 2002: There are an average of three truck roll-overs a day in Britain, according to the Society of Operations Engineers. With each incident costing an average of E160,000, the annual bill of reported accidents is around the E125 million mark.

Experts believe the real bill is much higher, as many such incidents may go unreported if nobody is injured.

Systems such as the Knorr-Bremse electronically controlled brakes for tractors and trailers can cut the risk of roll-over but, the SOE says technology is never a substitute for good driving practice. ÊÊOther advanced technology may also help, but the jury is still out on cost and practicality.