Warning signs are usually diamond in shape. They warn you to be careful for your own safety, the safety of other road users or of road workers.
Permanent warning signs are yellow. Sometimes the fluorescent signs are a yellow/green colour.
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| Look out for children | Pedestrian crossing | Road narrows ahead |
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| Slippery surface | Railway tracks ahead | Cyclists take care going over railway tracks |
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| Roundabout ahead | Wind gusts |
Temporary warning signs are orange and black.
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| Roadworks ahead | Stop on request | Slips |
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| Detour for cyclists on the left |
Last updated: 2 March 2010