The US has those lists already. There is plenty of data, and once in a while something useful is done about one of the worst places.
What is lacking is any learning. Despite widespread knowledge of what is wrong nobody does anything about it for the future. We keep designing new roads with all the known bad features. We keep allowing people to get and keep their drivers license with minimal training. I'm sure traffic engineers who study this stuff have a better list than me, but the above two (or variations thereof) will be near the top of theirs. So long as we don't act on what we already know nothing will change.
What is lacking is any learning. Despite widespread knowledge of what is wrong nobody does anything about it for the future. We keep designing new roads with all the known bad features. We keep allowing people to get and keep their drivers license with minimal training. I'm sure traffic engineers who study this stuff have a better list than me, but the above two (or variations thereof) will be near the top of theirs. So long as we don't act on what we already know nothing will change.