据不完全统计,高速公路上约有50%以上的事故是由于车辆撞伤护栏而造成的。交通事故很多时候都难以避免,但可以将事故的伤害最大限度地降低,韩国一家叫ETI的公司设计出了一款旋转防撞护栏,声称可以挽回很多交通事故中很多的生命。当车撞上护栏,圆筒会滚动,有效地将撞击力转化为向前的冲力,对驾驶者的伤害也能降到最低。即使是大吨位的火车也不在话下,缓冲效果一点也不弱。滚筒 According to incomplete statistics, about 50% of the accidents on the expressway are caused by the vehicles hitting the guardrails. Traffic accidents are often difficult to avoid, but can minimize the damage from an accident. A South Korean company called ETI designed a rotating crash barrier that claimed to save many lives in many accidents. When the car hit the guardrail, the cylinder will roll, the impact will be effectively converted into a forward momentum, the damage to the driver can be minimized. Even the large tonnage of the train without any problem, the cushioning effect is not weak at all. roller