Sentry Barrier TL-4 Thrie-Beam System

The Sentry Barrier TL-4 Thrie-Beam System is a roadside Thrie-Beam guardrail system suitable for containing, redirecting and shielding vehicles from roadside obstacles. The barrier has been designed and tested to meet the evaluation criteria of MASH Test Level 4 for a longitudinal barrier. This is the current and highest performance testing criteria in line with AS/NZS 3845.1:2015, exceeding the requirements of NCHRP 350 Test Level 4.

FEATURES
  • MASH Test Level 4 compliant as a permanent Longitudinal TL-4 Barrier system
  • AS/NZS 3845.1:2015 compliant and recommended for acceptance by the Austroads Safety Barrier Assessment Panel (ASBAP)
  • Less components, weight and footprint than public domain TL-4 Thrie-Beam guardrail
  • Proprietary washer and post slot allow for easy and fast installation with no special tools
  • Superior dynamic deflection results that is more forgiving on vehicle impacts
  • Conventional ‘C’ shaped post but shorter, smaller profile and lighter than public domain
  • No block out, stiffener or bracket required between rail and post connection
  • Large flexibility and tolerance in system height to accommodate easy transitioning
  • Recommended for use with the MAX-Tension™ End Terminal range
SPECIFICATIONS
System Width200 mm
Height to top of rail1050 mm
Height to top of post1040 mm
Post Weight20.5 kg
Post Length2000 mm
Post spacing2.00 m
MASH TL4.10 dynamic deflection (1,100 kg Vehicle)1.06 m
MASH TL4.11 dynamic deflection (2,270 kg Vehicle)1.45 m
MASH TL4.12 dynamic deflection (10,000 kg Vehicle)1.53 m
STANDARDS AND APPROVALS
  • MASH Test Level 4 compliant as a permanent Longitudinal TL-4 Barrier system
  • AS/NZS 3845.1:2015
  • Austroads Safety Barrier Assessment Panel (ASBAP) recommendation for acceptance