It is obvious that urban bridge guardrails are not just isolated roads, but their key purpose is to express and disseminate urban traffic information, establish traffic rules, maintain traffic order, and enable urban traffic to achieve a safe, fast, orderly, convenient, and aesthetically pleasing effect.

There are three installation methods for it: direct buried vertical column, flange plate connection, pouring bridge guardrail, and bridge deck through load-bearing steel bars. During the construction of bridge guardrails, attention should be paid to the information of various facilities. Especially in the accurate location of various pipelines buried in the roadbed, it is not allowed to cause damage to underground facilities during the construction process. In the case of insufficient depth of underground communication pipelines, the position of drainage pipes or culvert tops should be adjusted, the position of columns should be adjusted, and the fixing method of columns should be changed.

When the column is too deep, it is not allowed to pull it out and correct it. It needs to pull out all the parts, re compact the foundation, and then enter or adjust the position of the columns. Bridge guardrails should be equipped with flanges. Attention should be paid to the control of flange position and column top elevation.