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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.
The Softstop Barrier System
System Projects Giant Stop Sign on a Curtain of Water to Stop Motorists in Emergency
Everybody Stop Now!
A tight fit
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