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London tests LED crosswalk that responds to real-time conditions

A "smart crossing" prototype that uses cameras, sensors, computer programming and a large LED screen installed in the ground — dubbed "Starling Crossing" — has been revealed in London, according to Wired and others. The crosswalk improves safety by adjusting its road markings in real-time, in response to the presence of vehicles, pedestrians and cyclists. A visible crosswalk doesn't appear until a pedestrian stands near it and it's safe to walk. Markings disappear once everyone has crossed.

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