The Problem Road accidents are a major cause of death and injury globally; the World Health Organization (WHO) estimates that more than 1.25 million people die in road accidents each year, and another 20-50 million are injured. Road accidents are predicted to be the #5 cause of death globally by 2030. The problem is especially pronounced in low- and middle-income countries, with the highest road traffic death rate occurring on the African continent. In sub-Saharan Africa, road deaths are the leading cause of death for people ages 15 to 29 and the second leading cause of death for children ages 5 to 14. The situation is particularly grim in Kenya, where the annual rate of road deaths, at 29.1 per 100,000 individuals, is the 15th highest in the world. Such loss of life and associated injuries have enormous socio-economic impact on families, communities, and the nation at large. Many of the road deaths in Kenya occur in minibuses—“matatus”—the primary mode of transportation in the region. Accidents can occur because of reckless driving such as speeding and dangerous overtaking, often motivated by the fact that the faster a driver goes, the more passengers they serve and the more money they make. Traditional interventions such as speed governors, complaint hotlines, increased traffic enforcement, road improvements and new laws can be extremely expensive as well as slow to implement. Additionally, there’s no evidence that any of these initiatives have worked. More importantly, such approaches do not provide passengers control over ensuring their own safety in real time when subjected to life-threatening, dangerous driving.