The insane part is that there are in many cases NO trees along the road. Lawns everywhere, concrete. Ok, maybe a few trees, think 1 tree every 20m, and barely any bushes. A chance to contain that madness and sound levels, but nah, gotta see the huge billboards clearly from kilometers away...

I had to walk down one of these roads in Denver, let me see if I can find it.

W Alameda Avenue. 7+ lane for a lot of its length. Super sad walk.