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Incredibly Clever System Projects Giant Stop Sign on Water To Stop Cars in Emergency

Incredibly Clever System Projects Giant Stop Sign on Water To Stop Cars in Emergency

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The Softstop Barrier System projects an enormous image of a stop sign across a roadway in an emergency. The system deploys in less than three seconds, releasing a curtain of water on which the stop sign is projected. It is currently used at Sydney Harbour Tunnel to prevent oversize trucks from entering and damaging the tunnel.

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