Abstract
A speed enforcement campaign conducted over 2 weeks by the Victoria Police was evaluated using changes in vehicle speeds as the criterion measure. The campaign involved two metropolitan sites and intensive use of speed measurement devices by the Police. Speeds were measured for the evalation independently of Police operations. One site received heavy publicity, while the other did not. The enforcement was shown to have a much larger effect on speeds at the publicised site than at the other site. The results were taken to imply that more detailed publicity may improve the road safety benefits of Police enforcement campaigns.