Prohibition signs
Length Limit (R42)

If applicable, take an alternative route.
Where
On any public road, especially in mountainous areas.
Purpose
To prohibit long vehicles from using a road where such a vehicle will not be able to negotiate a curve or will turn in such a manner that it will disrupt or endanger other traffic.
Action
If applicable, take an alternative route.
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Other prohibition signs
- No U-turn, night-time (CS2)
- Speed Limit (R38)
- Mass Limit (R39)
- Axle mass limit (R40)
- Height Limit (R41)
- Excessive Noise Prohibited (R43)
- Hitch-hiking prohibited (R207) (R44)
- Unauthorised Vehicles Prohibited (R45)