The suggestion isn't carrot-only. Instead of making the whole city more annoying for cars, it's making part of it completely unusable by cars and leaving the re

The suggestion isn't carrot-only. Instead of making the whole city more annoying for cars, it's making part of it completely unusable by cars and leaving the rest alone, subject to change as the no-car area grows. It's like a crystal; you need a seed, not just saturation.