RACC have published EuroRAP mapping showing road sections with the highest crash costs. The work is part of RACC’s strategy calling for road investment based on sound economic appraisal. Further work will be carried out in Catalonia with the development of a RAP Safer Roads Investment Plan, identifying road sections with the greatest benefit to cost ratio. In a time of budgetary constraint, the objective of the study was to propose prioritisation of spending on roads based on the distribution of crash costs over the network. The premise being that investment on road sections with the highest crash costs will save lives and money.