Minimising the risk of roadside crashes is important in reducing the number of fatalities and serious injuries on our roads. The recently updated Part 6 of the Austroads Guide to Road Design includes a new method to determine the risk associated with roadside crashes and to identify where risk mitigation treatments are required on urban and rural road networks. The approach establishes a Network Roadside Risk Threshold (NRRIT) which consistently directs the locations for treatments within projects. This webinar, presented by Peter Ellis and Rod Troutbeck on 6 October 2020, describes the procedure’s background in detail explaining the concepts and research behind it. The presentation slides can be downloaded from the supporting documents tab after logging in.