In 2000, a system was introduced that allowed eight pilot areas to recover the costs of operating speed and red-light cameras (safety cameras) fromfines resulting from enforcement. In 2001, legislation was introduced that allowed the system to be extended to other areas. A national programme was then gradually introduced. This report provides an updated analysis to the 38 areas that were operating within the programme over the four year period from April 2000 to March 2004. The main results showered that vehicle speeds were decreased by about 6% at speed camera sites. At new sites, the reduction in vehicles breaking the speed limit was 31% (70% at fixed sites and 18% at mobile sites). There was a 22% reduction in personal injurycollisions and 42% fewer people were killed or seriously injured at sitesafter cameras were introduced. There was a positive cost-benefit of around 2.7:1