There are plenty of intersections where a walk signal comes on automatically, why do some intersections require a button push to initiate the walk signal when it doesn’t seem to make a difference in light timing or duration?
In: Engineering
The button might be there for one of several reasons:
* It might turn on a voice/sound indicator for crossing.
* It might make the pedestrian light come on sooner than automatically scheduled.
* It might control the crosswalk only during certain times of the day/night.
* It might be left over from a time when the crosswalk used to be pedestrian-controlled.
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