Guardrails are a vital part of road infrastructure, especially in high-risk areas. The Rolling Barrier Guardrail System, developed by the Korean company ETI (Evolution in Traffic Innovation), introduces a more effective approach to roadway safety. Unlike traditional barriers, this system actively works to reduce the force of impact during a crash.
Converts Crash Energy into Rotation
The core innovation of the Rolling Barrier Guardrail System is its use of rotating plastic barrels. When a vehicle hits the barrier, the impact energy is absorbed and converted into rotational energy. This mechanism allows the vehicle to decelerate more smoothly and redirect safely along the barrier, reducing the severity of the crash and helping to prevent rollovers or sudden stops.
Engineered for Strength and Support
To deliver both impact reduction and structural stability, the system uses a three-dimensional buffering frame supported by densely positioned posts. The upper and lower rail frames feature a D-shaped design, which is particularly effective at redirecting vehicles with a high center of gravity, such as trucks and SUVs. These frames help maintain control during and after impact, unlike traditional flat-rail barriers.
Ideal for Hazardous Road Sections
It is commonly installed on dangerous curved roads, tight-radius exit and entrance ramps, bridge decks, and tunnel entrances. These are areas where traditional barriers may not offer enough protection or controlled redirection. The addition of reflective sheeting to each rotating barrel further improves driver visibility during night-time or low-visibility conditions, offering another layer of prevention.
A Step Up in Safety and Design
The entire system measures 38 inches in height, significantly taller than the 27-inch average height of traditional guardrails. Posts are spaced 0.7 meters apart to maintain consistent performance along the length of the barrier.
Improving Road Safety Around the World
With more vehicles on the road and more complex traffic systems, the need for improved safety solutions is growing. The Rolling Barrier Guardrail System offers a modern and effective way to reduce impact severity and protect lives.
Source: ETI
