Regarding car accidents, the US does have a higher rate of deaths per 100k inhabitants [0] than most other countries of similar development. I imagine that's largely because of the lack of public transport and therefore increased number of miles driven by US inhabitants (as well as lower population density perhaps).

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

Edit: a better data source here: https://data.worldbank.org/indicator/SH.STA.TRAF.P5