Not surprising. The real question is how do we measure the opportunity cost of these measures? Is it a net gain? You could, at the extreme, ban all motor vehicles but the opportunity cost would outweigh the benefits.
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It could also be the case that making it viable to drive personal vehicles at all inside a dense city comes with opportunity costs (parking, roads that cut through infrastructure, pollution, noise) that aren't worth it.
And I'd wager that it is the case.