More than 1 million people die in traffic deaths around the world each year — that's drivers, passengers, cyclists and pedestrians combined.
It's a problem in the United States: There are 11.4 deaths a year per 100,000 population. It's a problem in low-income countries like Zambia, where the comparable figure is 23.8 deaths. And it's a huge problem in the middle-income world. The Dominican Republic records 41.7 deaths per 100,000, and was ranked in 2013 as the most dangerous country in the world for drivers.