Crash Barriers · 2026-04-10
Containment Levels: Understanding Thrie Beam Barrier Performance
By Hitesh Lunnia · Director · 1 min read
Normal containment classes W1 to W5: tested using a 900 kg passenger car at 100 km/h (W1) up to 13,000 kg truck at 65 km/h with various angles (W5). Each class describes the worst impact the barrier has been certified to contain.
High containment classes H1 to H3: tested with heavier vehicles — articulated lorries, coaches, tankers — at higher impact energies. Specified for bridge edges, tunnel approaches and high-consequence sections.
For Thrie Beam, typical achievable classes are W4, W5 and H1 with appropriate post spacing and embedment. Concrete barriers reach H2 and H3.
Key practical implication: containment class chosen must be supported by certified test data from the manufacturer. Auroguard supplies Thrie Beam Crash Barrier with applicable test references and certification suitable for NHAI, MORTH and PSU tender submission.
Related Products
Products referenced in this guide
AG-8360
Road Safety & Highway Barriers
Thrie Beam Crash Barrier
High-containment hot-dip galvanized steel triple-corrugation safety barriers engineered to MORT&H and EN 1317 specifications for heavy vehicle containment, high-speed expressways, and high-risk impact zones.
View productAG-9462
Road Safety & Highway Barriers
Guard Rail
Hot-dip galvanized steel W-beam safety guard rails engineered to MORT&H and IS:2062 specifications for roadside edge protection, embankment safety, and low-to-medium impact containment.
View productAG-5045
Road Safety & Highway Barriers
Highway Crash Barrier
High-containment hot-dip galvanized steel Thrie-beam and W-beam systems engineered to EN 1317 specifications for high-speed expressways, flyovers, and central median splitters.
View productAG-2751
Road Safety & Highway Barriers
Metal Beam Crash Barrier
Industrial-grade cold-rolled hot-dip galvanized steel corrugated beam panels and structural components supplied for institutional infrastructure and B2B road safety projects.
View productAG-3515
Road Safety & Highway Barriers
W Beam Crash Barrier
Standard-containment hot-dip galvanized steel dual-corrugation safety barriers engineered to MORT&H and IS:2062 specifications for highway edge lines, sharp curves, and baseline vehicular containment.
View product
About the author
Hitesh Lunnia
Director at Auroguard Private Limited. Auroguard manufactures highway crash barriers, guardrails and geosynthetics to IRC, MoRTH and IS specifications, supplying NHAI, PWD and EPC infrastructure projects across India. This guidance reflects direct manufacturing and project-supply experience — not third-party rewriting.
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