In the context of the Fourth UN Global Road Safety Week, WHO has released a new Report on Managing Speed, which highlights that excessive and inappropriate speed is among the key risks for road traffic deaths and injuries, contributing to around one third of road traffic fatalities in high-income countries and up to one half in low- and middle-income countries. Safe speeds are among the four main elements of the “safe systems approach” to road safety, along with safe roads and roadsides, safe vehicles and safe road users.  pdf5