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.

In terms of materials, highway guardrails have multiple options such as iron, stone, PVC, wood, stainless steel, glass, etc. to adapt to different environments and needs. These guardrails not only have protective functions, but also incorporate aesthetic and environmental elements, becoming an indispensable part of modern transportation construction.

With the advancement of technology and the growth of transportation demand, high-speed guardrails are also constantly developing and innovating. In the future, high-speed guardrails will pay more attention to environmental protection, energy conservation, and intelligence requirements. For example, using environmentally friendly materials and energy-saving technologies to manufacture guardrails to reduce their impact on the environment; Utilize intelligent sensing and control systems to achieve automatic detection and repair of guardrails; Combining the Internet of Things and big data technology to achieve remote monitoring and management of guardrails. These innovations will further improve the safety and efficiency of high-speed guardrails, providing a more solid guarantee for road safety.

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.