All crash barriers are made of 4mm thick road crash barriers. The column is composed of a circular steel pipe column with a diameter of 140 × 4.5 and a square steel pipe column with a diameter of 130 × 130 × 6.

The collision section connecting obstacles and the section above the handhole with a filling height less than 1.3m should be installed using the cast-in-place concrete foundation method. The compactness of the foundation within 1.5m of the column foundation should meet the general requirements of the roadbed and earthwork section. The guardrail adopts transmission columns, stone sections, and non intrusive column sections, and uses drilling methods. The crash barrier is connected to the column and connected through hexagonal anti blocking blocks. SB level is connected through 300 × 200 × 290 × 4.5 anti blocking blocks. Collision obstacles are usually classified by location and collision level. According to the installation location, crash barriers can be divided into roadside guardrails and central partitions with guardrails. According to the collision avoidance level, collision barriers can be divided into Class A and Class S. S-grade guardrails are reinforced and suitable for particularly dangerous road sections on the roadside. Grade A is used for special roads.