BrouillardFlandre
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230. Brouillard
Le brouillard peut fortement réduire la visibilité et rendre difficile l’évaluation de la vitesse, des distances et de la position des autres usagers. Les conducteurs doivent réduire leur vitesse, augmenter la distance de sécurité et utiliser les feux appropriés sans éblouir les autres. Il ne faut pas se fier uniquement au véhicule qui précède comme repère et il faut être prêt à des changements soudains de visibilité. Lorsque le brouillard est très dense, s’arrêter dans un endroit sûr peut être la meilleure solution.
Do you have to reduce your speed in fog in Belgium?
Yes. Belgian traffic rules require drivers to adapt their speed to visibility, weather, road conditions and traffic. The posted speed limit may therefore be too fast when visibility is reduced by fog.
When must rear fog lights be used in Belgium?
Under the current Belgian rules, rear fog lights must be used when fog reduces visibility to less than approximately 100 metres. They may not be used in other circumstances unless another permitted condition applies.
May front fog lights be used in fog in Belgium?
Yes. Under the current rules, front fog lights may be used in fog. They may replace the dipped or main-beam headlights or be used together with them.
Do normal vehicle lights also have to be used in fog in Belgium?
Yes. The prescribed vehicle lights must be used whenever visibility is sufficiently reduced. Fog lights are additional or alternative lighting under the conditions allowed by the traffic rules.
Will the fog-light rules change under Belgium’s new Road Code?
The basic rule remains similar. Under the new Code of the Public Road, rear fog lights must be used and front fog lights may be used when fog reduces visibility to less than approximately 100 metres. The new code uses the same approximate 100-metre threshold for heavy precipitation as well.

Règles de circulation
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