Safety engineering

Accidents and casualties on our roads can be reduced through education, training, publicity, enforcement and engineering (safety engineering).

Safety engineering
involves physically changing the road or certain aspects or part of the road in order to bring about a reduction in the level of casualties.

This work is targeted at:
  • Accident clusters that occur at places such as junctions or bends. In Suffolk such sites are currently defined as locations where four or more injury accidents have occurred within an 80 metre radius in the last three years. There are currently over 200 such locations in Suffolk.
  • Routes where there are a number of accidents and casualties that are giving rise for concern. Interventions of this type are identified by the number of people killed or seriously injured in a three year period per 100 million vehicle kilometres (that is a measure of risk related to the length of the route and volume of traffic as well as the number of accidents and casualties).
  • Areas where the concentration of accidents and casualties is such that engineering intervention is warranted. Such sites could typically include housing and shopping areas and the type of casualty would tend to be vulnerable road users such as pedestrians and cyclists.
  • Anxiety Relief Schemes which are sites where there is a perceived level of risk of accidents but the actual level of occurrence is low. A small budget is aimed at such works, which tend to include installation of new traffic signs and white lining.