Tools- of Changes

Effects of Interventions for Preventing Road Traffic Crashes: an Overview of Systematic Reviews

This overview of 35 systematic reviews found that road safety campaigns reduced the number of road traffic crashes by 9%. Mass media campaigns reduced crashes across all studies and all levels of crash severity by 10%.  Enforcement (e.g. sobriety checkpoints) and engineering interventions (e.g. converting intersections to roundabouts) had even greater impacts.

This review included studies from high-income countries. Most reviews were published before 2015, with only 5 published between 2015 and 2020. No evidence was found to indicate that post-license driver education was effective in preventing road traffic injuries or crashes.