The vast, _vast_ majority of such infrastructure was turn down in the 60s to make way for the almighty automobile.

The number of places in the north american continent that retain their street focused infrastructure is pretty much countable on one hand, and most of that is being terribly managed.

Exactly go Worcester, Providence and Boston and be in awe at how fucking horrendous the maze is.

Horse-drawn carts are not any narrower than cars are, and many place (e.g., the Marina District of San Francisco) designed in the horse era have very wide streets.