You say that and yet many places have an order of magnitude less car "accidents" per population than the US currently.
Nice Freudian slip there.
Rich western europe has less car accidents because they, broadly speaking, don't let poor people drive and work harder to cultivate a law abiding populace.
American's have to drive and they have to drive further.
If a collision occurs because of bad road/intersection design then it wasn't all that accidental after all - it was a statistical inevitability.
See also: https://en.wikipedia.org/wiki/Traffic_collision#Criticism_of...