§ Mr. Wiggin
asked the Secretary of State for Transport what percentage of drivers and front seat passengers are estimated to use their seat belts after an advertising campaign; and for how long such an improvement can be detected.
§ Mr. William Rodgers
The national average percentage of people wearing belts following a campaign has varied between 30.9 per cent. and 33.2 per cent. for drivers and between 30.8 per cent. and 36.5 per cent. for front seat passengers. There is normally a gradual reduction in the wearing rate after a campaign has ended, but surveys to detect the rate of reduction have not been carried out.