Huh? I've never seen this. If the drivers get a green turn arrow the pedestrians get a don't-walk. However, I see (and have been one) pedestrians who underst

Huh? I've never seen this. If the drivers get a green turn arrow the pedestrians get a don't-walk. However, I see (and have been one) pedestrians who understand the light going anyway across the part of the road that's facing a red, treating it as two separate crossings. While this is not a problem I have also seen pedestrians going the other way start to cross when the oncoming pedestrians start--and they may be crossing against the green arrow. Same as you sometimes see drivers go because the lane next to them went but it was actually on a different traffic control. As for the pedestrian hitting the button--I have never seen the button alter the sequence of the lights. The button does two things: Cause the light to cycle (in case it's sensor controlled and won't cycle if nobody comes along) and ensuring the cycle time is long enough for a pedestrian to cross. I've also seen hitting the button causing the button to indicate the status of the light (for the blind.)