Highway guardrail barriers are essential road safety systems engineered to shield vehicles and passengers during accidents. Installed on highways, expressways, bridges, and mountain routes, they absorb collision impact and prevent vehicles from leaving the roadway, especially near steep slopes, embankments, and sharp curves. By redirecting errant vehicles and reducing crash severity, highway guardrails play a vital role in preventing fatalities and saving thousands of lives every year.
Guardrail Profile Types
W-Beam Guardrail : Two raised humps and one valley, Convex (hump) surface faces the roadway.
Thrie-Beam (T-Beam) Guardrail: Three humps and two valleys, Provides higher impact resistance for high-speed zones.
Specifications
| Item | Specification |
|---|---|
| Guardrail Type | W-Beam / Thrie-Beam |
| Base Metal | Fe360 / Fe410 High strength steel |
| Steel Thickness | 2.67 mm / 3.00 mm (standard) |
| Length (Uncoated) | 4000 mm (Overall 4318 mm) |
| Yield Strength | ≥ 235–255 MPa |
| Tensile Strength | ≥ 360–410 MPa |
| Coating | Hot-dip galvanized, 550 g/m² |
| Post Size | 75 × 150 × 75 × 5 mm channel post |
| Spacer Block | Steel, hot-dip galvanized |
| Fasteners | M16 bolts, nuts, washers, IS 1364 / 1367 standard |
Features
- Prevents vehicles from leaving roadway at dangerous points
- Absorbs crash impact and reduces passenger injury
- Acts as a visual guide during night driving or bad weather
- Serves as a median barrier to prevent head-on collisions
- Protects pedestrians walking beside the expressway
- Minimizes vehicle damage in the event of an accident
- Suitable for mountain roads, sharp turns, flyovers, and elevated sections
Applications
- National and State Highways
- Expressways & Toll Roads
- Mountain roads and steep embankments
- Highway medians and bridge edges
- Roadside pedestrian protection zones
- Industrial road projects and high-speed lanes
