Alongside terrible grief and suffering, road crashes also cause huge economic losses to victims, their families, and societies as a whole, costing countries between 2 and 5% of their Gross Domestic Product. These are avoidable losses that represent a significant restraint on a country’s economic and social development. A global target was adopted to halve deaths and injuries caused by road crashes by 2020. This new target is included in the UN’s framework of Sustainable Development Goals (SDGs) in which road safety appears in the objectives for both health and cities (see Box 1.1).