Automated speed cameras have proven to be a very useful tool to enforce speed limits. In the UK cameras are widely used, and a recent report has shown that during the first three years of the country's camera scheme, the number of people killed or seriously injured could be reduced by 40% at camera sites. In the third year of the scheme, the cost-benefit ratio was around 4:1 (For the full report, see DfT website).
The European Commission recommends the use of automated equipment on all types of roads. Checks should be carried out on stretches of road where speeding occurs regularly and where this brings about an increased risk of accidents. Enforcement should be combined with information to the public both on the roadside and in the form of publicity campaigns.
It is important that all speeding violations registered by the automated speed equipment be followed up by appropriate sanctions.