[MichaelNolan]

Per 1 billion vehicle-km the US has 6.9 deaths and the Netherlands has 4.7 deaths. That’s obviously better much but I wouldn’t call it “problem solved”.

https://en.wikipedia.org/wiki/List_of_countries_by_traffic-r...

(Wikipedia links to itf-oecd.org/ where those numbers come From)

[rixed]

My guess is better road design means less miles driven by cars (as opposed to other, safer vehicles) and therefore fewer accidents overall, even if car crash statistics remain the same.