The weight of the car is mainly concentrated on the chassis. In short, the height of your seat is not the height of the center of gravity of the vehicle. And your imagined vehicle needs enough angular momentum to roll over the guardrail. Therefore, in general, as long as the height of the guardrail can block the wheels.

The material and use characteristics of the wave guardrail

Corrugated guardrail board national standard q195, low-carbon steel plate, etc.; Surface treatment: extruded and dipped; also electrogalvanized/hot-dip galvanized steel plate can be dipped or sprayed after stamping; low-carbon steel blackboard is dipped after extrusion ;The low carbon steel blackboard is extruded and then galvanized and dipped/sprayed; the dipping material is (pvc&pe); Application scope: safe collision avoidance of highways, large parking lots, etc.; Product features: bending increases aesthetics , And increase the strength of the mesh at the same time, both; automatic production line extrusion molding, clean and non-damaged surface, strong anti-corrosion; mature surface treatment; pe&pvc material is non-toxic, harmless, anti-corrosion, anti-aging, and anti-sun , Resistance to high and low temperatures, and the service life in outdoor environments can reach 10-20 years; the product structure is simple, beautiful and practical, easy to transport and install, good anti-theft performance, and less restricted by the actual terrain. It is suitable for mountains, slopes, and curved areas. It has strong adaptability and moderate cost, suitable for large-scale use.

Therefore, the minimum height of the guardrail center in the national standard cannot be less than 0.6m is calculated after theoretical calculations and safety is considered.

In fact, what really affects the function of the guardrail is the part that is not visible to the naked eye. The depth of the guardrail embedding, the strength of the foundation, and the quality of the components. To put it bluntly, as long as the guardrail is strong enough, it can prevent most accidents.