557 slippery road ahead sign face for permanent highway and site use
The 557 Slippery Road Ahead sign face warns drivers that the road surface ahead may have reduced traction, for example after temporary road work or in poor weather. The triangular warning design shows a skidding car so the hazard is clear at a glance. Each face is a permanent road sign made in the UK from 3mm aluminium composite with a Class 2 R2/RA2 reflective surface, CE marked to BS EN 12899-1:2007 for use on public highways and private roads.
Key features
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Skidding car warning symbol - a clear, recognised warning of reduced road traction ahead.
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Class 2 R2/RA2 reflectivity - high-intensity reflective surface that stays clear to drivers in low light.
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CE marked to BS EN 12899-1:2007 - meets the standard required for permanent signs on public highways.
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3mm aluminium composite - rigid, weatherproof face with a grey rear, built to last outdoors.
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Post or wall mounted - supplied with rear channels for post mounting, or drilled and fixed to a wall.
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Made in the UK in 450mm, 600mm and 750mm sizes.
Where it is used
- Roads affected by temporary surface conditions, such as after road works
- Rural and exposed routes prone to ice, mud or standing water
- Construction and utilities sites with a slippery haul route or access road
- Private estate and access roads
- Any site or highway where a permanent warning of reduced traction is needed
Sizes and mounting
Faces come in 450mm, 600mm and 750mm. Post-mounted versions are supplied with rear channels that clamp to a 76mm post using anti-rotational clips, so the face is fixed and will not twist. Wall-mounted versions are supplied undrilled, ready to drill for screw fixing or bond to a wall with adhesive. This listing is for the sign face only - posts and clips are sold separately. A supplementary plate can be fitted below the sign to show how long the reduced traction is expected to last.
Specification
| Specification |
Detail |
| Diagram reference |
557 |
| Sizes |
450mm, 600mm, 750mm |
| Face thickness |
3mm |
| Material |
Aluminium composite |
| Face colour |
Red / white / black |
| Rear colour |
Grey |
| Reflectivity |
Class 2 R2/RA2 |
| Compliance |
CE marked to BS EN 12899-1:2007 |
| Mounting |
Post mounted (rear channels) or wall mounted |
| Origin |
Made in the UK |