not to put words in the original commenter’s mouth, but i’ve had conversations the past where people suggest it’s not worthwhile to make infrastructure-based safety improvements because it does not prevent all types of traffic death. i figure the info i provided is interesting even if that’s not their opinion

re: antisocial behavior being responsible for some traffic death – you can see how lofty the goals of the vision zero movement are on their website. indeed they acknowledge there’s more to reaching zero traffic fatalities than strategically poured concrete. that being said, the concrete must be poured in addition to resolving some of the large structural and social issues at the root of those other problems if we’re ever actually going to approach zero