By continuously setting up guardrails, the boundaries of the lanes can be clearly delineated, guiding the driver's line of sight and improving driving safety. The design of the guardrail takes into account aesthetics, coordinates with the road environment, and provides a comfortable driving environment for the driver.

High speed guardrail, also known as highway collision barrier, is a metal structure installed on both sides or the central divider of a highway. When a vehicle loses control or deviates from its normal driving trajectory, high-speed guardrails can effectively block the vehicle, prevent it from rushing into the opposite lane or falling into roadside ravines, thereby reducing the occurrence of traffic accidents and reducing accident losses.