At a non-arch bridge, a red-ringed circular sign gives a maximum height in metric and imperial units. Your vehicle exceeds it. What does the sign mean?
The overheight vehicle must not pass the sign.✓Bonne réponse
The vehicle may proceed at walking pace under an escort.
The height is advisory if the bridge opening looks clear.
Only vehicles carrying a high load are affected.
Explication
The roundel is a mandatory height restriction, so an overheight vehicle may not pass it. A triangular headroom sign warns of clearance, but the red-ringed control at this bridge creates a prohibition.