In Vienna there are some 200 push-button pedestrian lights (signalized pedestrian crossings). They allow pedestrians to cross the road safely. But only after a waiting time, which is annoying for many people. This often results in pedestrians not waiting for the green phase, but instead walking in a different direction or crossing the street when the lights are red. For some people, push-button lights are an invitation to trigger off the green phase as they go past—just for fun. Something that annoys car drivers, who have to stop at the crossing even though nobody is crossing the road.
Click here for original story, New traffic light system automatically recognizes pedestrians’ intent to cross the road
Source: Phys.org