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Safe Distance / automobile

Safe Distance
Safe Distance

People should lay the warning signs in the 150 meters away if their motor vehicles break down on the highway in Chinese traffic rules. Every country in the world has the same traffic rule. But usually people can not estimate the distance accurately. This warning sign can display the distance between the car and the sign through inductor. And it can help people lay warning signs on the safe distance accurately.

University

Yanshan university

Yanshan university
Qinhuangdao, China

Yang Chengbo,
Yanshan university