A series of new fact sheets that describe the iRAP methodology is now available for download.

The fact sheets answer many of the questions people have about the iRAP approach, covering topics such as crash types, Star Rating Score equations, model calibration and estimation of economic benefits and costs.

These new fact sheets complement the Road Attribute Risk Factor fact sheets that were published earlier in the year.

If you have any questions about the iRAP methodology that are not answered in the fact sheets, please contact us. We will be happy to answer your questions.

The fact sheets are available at: http://irap.org/about-irap-3/methodology.