Depending on the intersection crosswalk buttons do actually do something. Some lights use pressure plates to tell when cars are waiting for them and wont change unless they are, so those ones need the button to tell when a pedestrian is waiting at the intersection.
Depending on the intersection crosswalk buttons do actually do something. Some lights use pressure plates to tell when cars are waiting for them and wont change unless they are, so those ones need the button to tell when a pedestrian is waiting at the intersection.