Zhaoqing River guardrail customized Dongguan landscape river guardrail anti-collision guardrail
桥梁护栏的防撞性能：所选取的护栏型式在强度上必须能有效的吸收设计碰撞能量。
Anti collision performance of bridge guardrail: the selected guardrail type must be able to effectively absorb design collision energy in strength.
阻止相应失控车辆越出桥外或进入对向车道并使其正确改变行驶方向。
Prevent the corresponding out of control vehicle from crossing the bridge or entering the opposite lane and make it change the driving direction correctly.
该原则主要是从公路等级、桥梁护栏外侧的危险物特征等方面考虑。
This principle is mainly considered from the aspects of highway grade, characteristics of dangerous substances outside the bridge guardrail, etc.
即防撞等级的确定。该原则是所有所选护栏都应满足的基本要求，所以在是否是合理选择的问题上本条原则上不能作为判别依据。
That is, the determination of anti-collision level. This principle is the basic requirement that all selected guardrails should meet, so this article can not be used as a basis for judging whether it is a reasonable choice.