Safe "speed bump"

Show me a man who likes “speed bumps” and I, too, will spit on his back. In states, the attitude towards speed limiters is no better. And all because shakes on such a barrier pretty. Even if you drive at a very low speed. One can only hope that someday instead of asphalt slides on our roads will be laid the “policeman” who invented by Jae-Yun Kim and Jong-Su Lee. The meaning of the development is as follows: when the car travels more slowly than 30 km / h, the barrier “slips” under it and the push is almost imperceptible. But if the car is going fast, the “policeman”, thanks to the special design of the hinge, remains firm - and then the suspension of the amateur chasing with a breeze wept.

Via yankodesign.com