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If you pass by some construction site, you can see so many dangerous things that may hurt people. Uncontrolled traffic cones for pedestrians cause a big accident. Safe Beam segregates a danger zone exactly. A solar battery is set up on a traffic cone's part, and it charges the laser. The laser connects with each traffic cone, so it roles a barricade at night. It lets people be aware of a construction site at night.
Sookmyung Women's University
Seoul, South Korea
Suin Ko,
Sookmyung Women's University
