> Another version detects visually impaired pedestrians and activates the ticking sounds that tell them whether the light is red or green. As a visually impair

> Another version detects visually impaired pedestrians and activates the ticking sounds that tell them whether the light is red or green. As a visually impaired person I think the ticking sound should be on all the time at traffic lights. When I visited Madrid and Barcelona recently that was the way they handled it.