RISK management experts have urged caution where companies offer cash bonuses for low accident rates. Alan Bewley, head of risk management at the RAC, warned against the schemes where companies offer drivers cash for having no accidents.

He told delegates at an At Work Road Safety conference: 'There would be a danger of corrupting reporting procedures where these schemes operate. If a driver is two days away from receiving a cash bonus and has an accident, they might not report the accident immediately.'