Space is at a premium in many places, possibly every place where such a road might be placed.

One of these roads is two blocks away from me. I’m going to go have a look at it later today, but the road it’s on is very similar to the road I live on: two direction street, residential parking on both sides, not four car widths’ wide, so people are already “taking turns” and used to it.

I bet it works exactly like the street I live on, only using more paint.