Japan has a lot of roads. Causing the roads of Japan to be many hills, so Japan made many o-circles on the road Is for slippery barrier while cornering To reduce accidents O is known as the O-gata suberidome (O 型 滑 り 止 め). He will create the O Normal floor level at 7%. If the slope is lower than 7%, it will create a red asphalt ground instead.
Can O-gata suberidome really reduce accidents?
Can reduce accidents by up to 80%. Nowadays, you can see this anti-slip OO even in the nib If you are wearing high heels, please walk carefully.
