D4a: Mandatory direction for vehicles carrying dangerous goods, as indicated…
Category : Mandatory signs
D4a - Mandatory direction for vehicles carrying dangerous goods, as indicated by the arrow. Other road users are not affected. Used to direct ADR transport towards safer routes (avoiding tunnels and city centres).
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).
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Other road signs
- D4b: Variant of signal D4 for the transport of dangerous goods
- D5: Mandatory roundabout (traffic circle)
- D7: Mandatory cycle path
- D9 - Lane Reserved for Pedestrians and Bicycles
- D10: Part of the public road reserved for pedestrians and cyclists
- D11: Mandatory pedestrian path
- D13: Mandatory path for horse riders
- D1a: Obligation to follow the direction indicated by the arrow