Projected pedestrians are traffic stoppers

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South-Korean product designer Hanyoung Lee has come up with a safety device that could make traffic lights obsolete, or at least improve their effectiveness. His so-called Virtual Wall is designed for busy city streets. Instead of showing a red light when it’s time for pedestrians to cross the street, Lee’s Wall projects a curtain-like, two-dimensional image of giant people crossing the street. The real pedestrians walk behind their virtual counterparts. Lee’s design—which hasn’t made it off the drawing board yet—works thanks to a stack of laser projectors installed in poles on opposites sides of the street. Digital renderings of the…

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