How We Rate Roads For Safety

Star Rating Roads For Safety explains the concepts, process, and science of assessing infrastructure for the risk of death and serious injury.

The report:

• describes how road inspections are undertaken

• explains how Road Protection Scores (RPS) are calculated using risk factors that show, for example, risk on roads with poor line marking can be up to 20% higher than if there is good line marking

• provides an overview of how RPS are used to develop Star Ratings for pedestrians, bicyclists, motorcyclists and car occupants.

Star Rating Roads For Safety will be complemented by Safer Roads Investment Plans, which will describe the methodology iRAP uses to developed plans to cost-effectively improve roads.

The new report is available for download from www.irap.org.

August 2009.