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I mean the experience of walking along a pavement (or sometimes cycling) on a main road and having to check for motor vehicles coming from behind you at every single crossing because current fashion dictates "no, no, it's better to leave all the side streets open. Closing them and removing all conflict is actually bad".
I mean, maybe you're arguing it's the least bad of the various alternatives, but it's certainly not good.
I don't understand what you mean here.