The methodology used for this survey was developed in consultation with an expert committee of road safety researchers and practitioners. Data collection was carried out using a self-administered questionnaire, the content of which was based on the recommendations of the World report on road traffic injury prevention. The questionnaire used for this project was modified slightly from the questionnaire used in the Global status report on road safety 2009.
The methodology used involved the identification of a National Data Coordinator in each country who facilitated a consensus meeting involving a multisectoral group of up to eight road safety experts. Based on consensus, one final country questionnaire was submitted to WHO following government clearance. Final data were received from 182 participating countries and areas which account for 99% of the world's population.