International organisations use a star rating to rank the safety of transportation. EuroRAP have developed a Road Protection Score which is a scale for Star Rating roads for how well they protect the user from death or disabling injury when a crash occurs. The assessment evaluates the safety that is 'built into' the road through its design, in combination with the way traffic is managed on it. The RPS protocol has also been adapted and used by AusRAP, usRAP and iRAP.