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Placebo Walk Buttons: https://en.m.wikipedia.org/wiki/Placebo_button#Walk_buttons

(My point is that just like for cars, there should be sensors for walkers, not buttons.)

Sometimes people stand at intersections and just chat and don't want to cross. And in Germany and Hungary where I used such buttons, they are definitely not placebo, because the switch comes quickly and when you forget to press it it does not switch.

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