Reviewed 2026-11-03 · A39
Signs and road markings →Two-way traffic after a one-way section

Purpose and student action
Anticipate the pictured hazard and adapt speed and observation before reaching it.
Read · decide · act
- Identify the pictured hazard and any distance plate.
- Look beyond the sign and reduce speed early if the situation requires it.
- A warning alone does not grant priority or prescribe a new numeric speed limit.
Source documents
Two-way traffic after a one-way section
Coverage refers to this dated source catalogue, not every local sign or all Belgian legislation. Variants and reference examples are counted separately.
Regulatory source ↗Published legal wording (French/Dutch)
A39. Circulation admise dans les deux sens après une section de chaussée à sens unique.
A39 . Verkeer toegelaten in twee richtingen na een gedeelte van de rijbaan met eenrichtingsverkeer.