Crash barriers are fences installed in the middle or on both sides of the road to prevent vehicles from rushing off the road or crossing the median to protect the safety of vehicles and passengers.
Our country’s traffic road law has three main requirements for the installation of anti-collision guardrails:
(1) The column or guardrail of the crash guardrail should meet the quality requirements. If its size does not meet the requirements, the thickness of the galvanized layer is not enough, and the color is not uniform, it is very likely to cause traffic accidents.
(2) The anti-collision guardrail shall be staked out with the road centerline as the benchmark. If the outside of the soil road shoulder is used as a reference for stakeout, it will affect the accuracy of the column alignment (because the soil roadbed cannot be uniform in width during construction). As a result, the alignment of the column and the direction of the route are not coordinated, which affects traffic safety.
(3) The column installation of the crash guardrail shall meet the quality requirements. The installation position of the column should be strictly in accordance with the design drawing and the lofting position, and should be coordinated with the road alignment. When the excavation method is used to bury the columns, the backfill shall be compacted in layers with good materials (the thickness of each layer shall not exceed 10cm), and the compaction degree of the backfill shall not be less than that of the adjacent undisturbed soil. After the column is installed, use the theodolite to measure and correct it to ensure that the line is straight and smooth. If the alignment cannot be guaranteed to be straight and smooth, it will inevitably affect road traffic safety.
If the installation of the crash barrier can be pleasing to the eye, it will better improve the driving comfort and provide drivers with good visual guidance, thereby effectively reducing the occurrence of accidents and losses caused by accidents.
Post time: Feb-11-2022
