These numbers can be roughly predicted by Smeed's law, which states that a country's per capita road deaths are directly related to its number of registered veh

These numbers can be roughly predicted by Smeed's law, which states that a country's per capita road deaths are directly related to its number of registered vehicles and population. "Smeed had a fatalistic view of traffic flow.....Smeed interpreted his law as a law of human nature. The number of deaths is determined mainly by psychological factors that are independent of material circumstances. People will drive recklessly until the number of deaths reaches the maximum they can tolerate. When the number exceeds that limit, they drive more carefully. Smeed's Law merely defines the number of deaths that we find psychologically tolerable." https://en.wikipedia.org/wiki/Smeed%27s_law https://en.wikipedia.org/wiki/Smeed%27s_law