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Ever been surprised at a big truck jumping out of the opposite lane that you couldn't see?
There are many head-on collisions on thecurved lane. The accidents are happened by unreasonable outstripping or not recognizing a car of the other side. So if you foresee the car of the opposite, many accidents can be reduced. Lighting speed dump makes light by the electric power produced when the car is moved is delivered to speed dump of the other side through the way of PIEZO ELEMENT. This light help drivers to guess the other car and drive defensively in advance.
Gwang - ju, South Korea
prof. jin ryeol Lee
gwang - ju, South Korea
sung hyun Hwang , gil ho Jin