Every day, thousands of people are killed and injured on roads around the world, with the costs of this growing, but largely preventable, public health concern disproportionately affecting vulnerable social groups and developing countries. In order to address these issues, the World Health Organization and the World Bank have produced this joint report on road traffic injury prevention, based on the collaborative contributions of experts and institutions, from all continents and different sectors, including transport, engineering, health, police, education and civil society. It presents a comprehensive overview of the magnitude, risk factors and impact of road traffic injuries, and about ways to prevent and lessen the impact of road crashes.