A51: Danger not defined by a special symbol
Category : Warning signs
A51 - Danger not defined by a special symbol. There is a danger ahead, but it does not correspond to other signs. Its exact nature is specified on an additional panel placed below (e.g. 'frequent fog'). Exercise extra caution and adapt your driving accordingly.
What to know about this type of sign
Learn every sign of the Belgian highway code and its exact meaning. Essential to pass the theory exam: signs are the most tested topic.
- Danger (triangle) Red triangle: warns of a hazard ahead - bend, crossing, works, slippery road. Slow down.
- Prohibition & obligation Round signs: prohibition (red border) or obligation (blue background).
- Priority & information Priority signs (give way, stop, priority road) and information signs (blue).
Read the full guide : All Belgian road signs
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