Road Safety Barrier Systems

 

     W Beam Guardrail is the most accepted flexible safety barrier system used throughout the world today. It is manufactured to AS/NZS 3845:1999 from HA350 grade steel in 2.7mm base metal thickness (BMT). The posts and blocks used with this system are manufactured from HA300 grade steel in 4.3mm BMT and 6.0mm BMT. The finished product is hot dipped galvanized to conform to AS /NZS 4680:2006. W Beam Guardrail is available in various lengths and provides several terminal options to meet all applications.

     Thrie Beam Guardrail is a more rigid safety barrier system that is ideal for fences that get regularly hit or where there is higher usage of heavier vehicles. It is manufactured to AS/NZS 3845:1999 from HA350 grade steel in 2.7mm or 3.5mm base metal thickness (BMT). The posts and blocks used with this system are manufactured from HA300 grade steel in 4.3mm BMT. The finished product is hot dipped galvanized to conform to AS /NZS 4680:2006.

     There is one main standard for governing the use of safety barrier barriers in Australia. Depending upon the design use for the barrier system, this standard can be used in conjunction with NCHRP Report Number 350 and the various state authorities road design guides.

 

AS/NZS 3845:1999 Road safety barrier systems

     This standard sets out the requirements for roadside barriers and terminals that deliver either a containment or redirection ability for vechiles when impacted upon or act as an absorption of energy for wayward vehilces on collision with major obstacles. The standard includes information on testing methods, device issues, installation, repairs and maintenance practices and data on non-patented barriers that comply to this standard.

 For further information please click on the following links & download:

Safety Barriers Manual                Austroads