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.

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