The highway guardrail is the main form of semi-rigid guardrail, consisting of corrugated steel guardrail plates connected and supported by continuous structural columns. It utilizes deformation of the foundation, columns, and beams to absorb collision energy, forcing out-of-control vehicles to change direction and return to normal traffic flow, preventing vehicles from running off the road, thereby protecting both vehicles and passengers while reducing accident-related losses. The corrugated steel beam guardrail features excellent impact energy absorption and collision prevention capabilities, provides effective sightline guidance, harmonizes with road contours, and presents an aesthetically coordinated appearance. It can be used on small-radius curves, with damaged sections easily replaceable. Combined corrugated beam guardrails can be installed on narrow central dividers. For vehicles crossing outside highway (bridge) sections where severe consequences may occur, reinforced corrugated guardrails may be selected.

The utility model of highway guardrail involves a central road divider opening with movable corrugated steel guardrail plates, where two corrugated steel guardrail plates are fixed between two columns with clips installed. During normal highway operation, the guardrail can be easily inserted into preset insertion/extraction holes, serving isolation and protection functions while creating visual harmony with roadside guardrail belts for a neat, orderly, and beautiful layout. During vehicle collisions, the corrugated steel guardrail plates demonstrate excellent impact resistance and energy absorption, not only being damage-resistant but also effectively protecting vehicles, drivers, and passengers. When required for road maintenance or other reasons, each guardrail column group can be easily opened to create passageways for vehicles.