Color matching of municipal river guardrails: The color of the horizontal bars and columns should be consistent or the color of the horizontal bars and columns should be consistent. Generally, the color of the horizontal bars and columns should be consistent, so that the lines are more obvious.

Recommended colors for municipal river guardrails: white with blue, yellow with blue, yellow with green, white with green, white with black, white with red.

The existence of municipal river guardrails is to ensure the safety of the surrounding population. However, with the progress and development of society, current river guardrails not only need to have their safety, but also reflect a sense of aesthetics.

The functions of municipal river guardrails are threefold: safety, functionality, and aesthetics.

Security lies in sturdy safety; Functionality lies in isolation and obstruction; Aesthetics lies in harmonious beauty.