That's not the point I'm trying to make. If everyone still needs cars, you gotta put them somewhere. And the roads have to be big enough to accomodate the comm

That's not the point I'm trying to make. If everyone still needs cars, you gotta put them somewhere. And the roads have to be big enough to accomodate the commuting and the inter-block traffic. If you put them on the perimeter and route the cars around the perimeter, you don't have a walkable city, you have a car-centric city of high-traffic roads people drive on to walk around little walkable islands. *Same even if you put them under the superblock.* Tons of these sorts of mini-downtown walkable areas in LA, for instance, but nobody's calling LA walkable. Transit, transit, transit. You can't superblock your way around the need for it. "Walking to a car to drive to another part of town" instead of "Walking to a train to get to another part of town" is going to give you a dramatically different experience, since one of those is far, far more friendly to low-density SFH surrounding development than the other.