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.

As the guardian of road safety, high-speed guardrails play an important role in ensuring driving safety and maintaining smooth roads. With the continuous progress and innovation of technology, it is believed that high-speed guardrails will play a more important role in future transportation development.

High speed guardrails play an irreplaceable role in traffic safety. Firstly, it can effectively prevent vehicles from running into opposite lanes or falling into roadside ravines after losing control, reducing the occurrence of traffic accidents. Secondly, the installation of guardrails can guide the driver's line of sight and improve driving safety. In addition, safety facilities such as reflective strips and delineators on guardrails can provide additional warning effects at night or in adverse weather conditions, helping drivers identify road boundaries and obstacles.

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.