The truth about Pedestrian crossing buttons

Those buttons that are supposed to give pedestrians time to cross the street safely have been a mystery my whole life.

Those buttons that are supposed to give pedestrians time to cross the street safely have been a mystery my whole life. Up until this point, I have heard no better explanation of their use than conspiracy theories. Mainly, the buttons are a placebo to keep people standing around patiently, or give them something to do. This video seemingly ends the discu…