Examines cost of road crash hospitalisations and deaths in Western Australia for Aboriginal people; compares this cost with corresponding cost for non Aboriginal people; data from official death records, the Injury Research Centre's Injury Database and its Injury Cost Database and a government study on road crash costs in Australia; methodology; results, broken down into trends in the costs, road user type, age and gender, place of residence and body region of injury; study confirmed Aboriginal road safety is a serious problem; results identified specific areas to target to reduce road trauma for Aboriginal people