They aren't even suggesting that the interior streets be completely closed, just that the speed limit be reduced to 5 mph and pedestrians be given priority. Tha

They aren't even suggesting that the interior streets be completely closed, just that the speed limit be reduced to 5 mph and pedestrians be given priority. That would make them unattractive if you are trying to get all the way through the block, but if you are trying to drive up to a building inside the block it would only be a minor inconvenience.