11. Intervention Selection and Prioritisation

Key messages

• Once high risk locations have been identified, appropriate interventions must be assessed and selected to address this risk.
• Effective road infrastructure interventions are available to help address road safety problems, regardless of the cause. These can reduce the likelihood and/or severity of a crash. Some interventions can almost eliminate death and serious injury, while others provide more limited (or incremental) improvements.
• Interventions should be designed to address risk at a specific location, routes or across the whole road network.
• Detailed information is available on effective interventions and when these should be used, including for those in LMICs.
• Interventions can be selected based on the expected reduction in injury, but other factors should also be considered when selecting interventions.
• Once appropriate locations have been identified, there is a need to assess which combination of interventions and/or locations will produce the greatest reduction in fatal and serious injuries for the budget available.
• Economic assessment should be undertaken to identify the most cost-effective use of resources. The process for this is well established, including for LMICs, and tools are available to assist in this task.