Guardrail GRP6m
NZTA has assessed Timber Faced Guardrail as compliant with NCHRP 350 TL2.
GRP is a hot galvanized w section and posts that have been masked with treated Pinus. This design has quickly become very popular in Europe as engineers seek less intrusive appearances.
Features of GRP
- NZTA assessed to NCHRP 350 TL2
- Aesthetically appealing double log system
- Rapid & easy to install
- Cost effective
- Ideal for parks, skifields, tourist routes and urban areas
- Timber masks cover front visible steel
- 6m to 1.5m post spacing and the shorter 2m rails allow tight radii and less impact deflection
- Suitable to speed environments up to 70 km/hr ( being considered for MASH TL3)
Specifications
- Assessed to NZTA TL2
- Tested to EN1317 N2
- 1500kg car at 110km/h and 20° with 1.5, 2, 3, 4 & 6m post spacing
- Tested as EN1317 H1
- 10000kg truck at 70km/h and 15° with 1.5m post spacing
- Height of top of rail 781mm + 20mm
- Ask for Design, Assembly and Maintenance Manual for full details
Installation Equipment
Below are several methods used to install the guardrail post and to attach the rail to the post. There are also suggestions how to bend the splice bars on curved alignments and systems to use if lifting of the rail is required.
