Abstract
This report collates research into factors contributing to the incidence and severity of run-off-road and head-on collisions on urban roads in Australia and New Zealand. It also identifies possible measures to reduce the incidence and severity of these crashes. Run-off-road and head-on collisions are both loss-of-control collisions that have a high-incidence and severity in urban environments. Crash data analysis and site investigations were conducted to add to currently available research on this topic. Recommendations based on this research are made on ways to reduce the incidence and severity of these crash types, in order to achieve a Safe System. (Author/publisher)