The International Road Assessment Programme (iRAP) announced today at the IRF World Congress 2024 in Istanbul, Turkey, the enhancement of the Star Rating for Designs (SR4D), a tool that allows the safety of road designs to be measured before the commencement of civil works. Using the tool, road engineers and designers can define a road’s geometry and code its features to obtain a globally recognised iRAP safety Star Rating, along with fatal and serious injury estimations, and safety investment plans to optimise safety.