The barrier function of bridge railings: Bridges can block bad traffic behavior and prevent pedestrians, bicycles, or motor vehicles from crossing the road through bridge railings. It requires a certain height of bridge guardrail, a certain density refers to vertical columns, but also has a certain strength.

The warning function of bridge guardrails: By installing bridge guardrails, the outline of the bridge guardrails is simplified and fast, warning drivers to pay attention to the existence of guardrails, pedestrians and non motorized vehicles, and preventing traffic accidents.
Bridge railing beautification function: By using different materials, forms, shapes, and colors of bridge barriers, it achieves coordination and coordination with the road environment, and plays a role in beautifying bridges and the environment.