Traffic safety is getting more and more attention, and the installation of rotating guardrail is imperative. Can you reduce the accident by installing a rotating barrier? Obviously, but what we can do is to reduce the loss of life and property caused by the collision of vehicles and barriers, the role of the rotating barrier is to make the hard collision in the accident into rotary unloading force, the role of decomposition, so that the vehicle can travel in the direction of the original direction. When the accident did not happen, the role of the rotating guardrail is not very obvious, may feel that the installation and not in fact, there is no difference, but if one day accident really happened, rotating guardrail will let the driver more hope. The traffic accident is merciless, a period of time after the accident has become a sad story, the heart people to do their own can, make it become a beautiful story.