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Fool Me Once: 3D Virtual Speed Bumps
jalopnik.com — The police in Philadelphia are taking an ingenious step in an attempt to slow down motorists: deploying 3D speed bumps. Rather than going through the painstaking task of installing real speed bumps, the Philly police are simply laying down flat plastic "speed bumps" that mimic the real thing, all in an effort to fool drivers into slowing down
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