Superblocks: Barcelono’s traffic reclamation proposal, is somewhat fascinating

Take nine square blocks of city. (It doesn’t have to be nine, but that’s the ideal.) Rather than all traffic being permitted on all the streets between and among those blocks, cordon off a perimeter and keep through traffic, freight, and city buses on that.

In the interior, allow only local vehicles, traveling at very low speeds, under 10 mph. And make all the interior streets one-way loops (see the arrows on the green streets below), so none of them serve through streets.

(Via Superblocks:...