In addition to safety protection functions, highway guardrails also have multiple functions such as separating the roadway from pedestrian areas, preventing vehicles from deviating from the lane, reducing collision injuries, providing guidance functions, marking dangerous areas, beautifying the urban environment, and diverting traffic flow. These functions together ensure the safety, orderliness, and aesthetics of highway traffic.

Due to long-term exposure to outdoor environments, high-speed guardrails need to have excellent corrosion resistance and wear resistance to cope with various harsh weather conditions. The design of high-speed guardrails considers the convenience of installation and maintenance, making it convenient for construction personnel to quickly install and maintain in the later stage.