护栏板安装在道路中间，当车辆发生失控可以有效的防止失控车辆跑到对面车道发生二次碰撞
2. The guardrail plate
is a semi-steel type protection facility, and the toughness is very
good. When the vehicle hits, it can be smooth and forced to return to
the normal line.
2. 护栏板是半钢型防护设施，韧性非常好，当车辆撞击后，可以进行圆滑的国度，迫使车辆驶回正常的线路。
3
can slow down the impact of the driver's injury, the national standard
guardrail plate toughness is good, not easy to break, when the impact,
you can force the vehicle to stop through the deformation of the
guardrail plate, the buffer force is very good, reduce the accident
caused by the accident
3. 可以减缓撞击给司机带来的伤害，国标护栏板韧性好、不易折断，当受到撞击时，可以通过护栏板的变形迫使车辆停止，缓冲力非常好，减轻事故造成的威海
4
guardrail plate also has a non-negligible advantage, can let the driver
see the edge of the road line, and the effect of the guardrail plate at
night is also very good, in the light of the light so that the driver
can easily identify the direction of the road.
4. 护栏板还有一个不可忽视的优点，可以让司机看清道路边缘线，而且护栏板在夜间的效果也是非常好的，在灯光的照耀下让司机极易辨明道路的走向
