The Gore Plate Class 1 Retro-Reflective Road Sign (W413) is a W Series warning and guidance sign used to mark gore areas, lane splits, diverging carriageways, and channelised islands. It provides strong visual guidance to prevent incorrect lane entry and late decision changes.
Purpose and function
This sign improves lane discipline and reduces side-swipe and merge related collisions by clearly defining where traffic must not drive and where lanes separate. It is especially useful on high-speed approaches, ramps, and complex interchanges.
Typical applications
- Highways, interchanges, and ramp splits
- On-ramps and off-ramps with channelised islands
- Lane drops, lane additions, and diverging carriageways
- Traffic islands and painted gore zones where guidance must be unmistakable
Commonly used with
- Danger Plate Left or Right road sign (W401 / W402)
- Sharp Curve Left or Right Chevron road sign (W405 / W406)
- Right Lane Ends road sign (W214)
Explainer guide
For how W Series warning signs are grouped and used, see our W300 Series Symbolic road signs explainer.
Materials and ordering notes
- Class 1 retro reflective sign face, enquire if you require Class III
- Suitable for outdoor installation
- Poles, clamps, and mounting hardware are not included
- Please confirm stock availability before ordering road signs
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