Buttons at pedestrian crossings have a use beyond controlling the lights - it triggers the visual, physical and audio feedback for when it's safe to cross. At

Buttons at pedestrian crossings have a use beyond controlling the lights - it triggers the visual, physical and audio feedback for when it's safe to cross. At work there is a crossing at some traffic lights that doesn't have a button. This means you have to crane your head awkwardly to try and watch the traffic lights for when they're red and it's safe to cross. It's even worse for the visually impaired, as there is no noise or cone. [1] [1] http://www.bbc.co.uk/news/blogs-ouch-22706881 http://www.bbc.co.uk/news/blogs-ouch-22706881