Re:The secret button at pedestrian crossings
by paulbennett on Friday May 31, 2013 @05:48AM
(#5797636)
Do they, or did they used to, have light sensors to detect emergency vehicles coming through? Perhaps that was just an urban myth.
They may have a detector (ir-red/mircowave/inductive loop) that detects your approach. At night, as they may be no conflicting demands - the side road will change Green ASAP.