Sign OB1: The sign applies only to horse riders
Legal meaning
Supplementary plate: the sign applies only to horse riders.
Shape and colour
White rectangular plate with a black rider symbol: the sign above applies to riders only.
Where the sign stands
Directly under the sign it limits, on the same post.
What the exam asks about this sign
The exam asks what this plate does to the sign above it: it limits the effect to riders; other road users may ignore the sign. Trap: candidates read 'riders only' as 'except riders' — that is OB51, with the word 'uitgezonderd'.
Often confused with
- The sign does not apply to horse riders (riders excepted)
OB51— The reverse: riders are precisely exempted. - Bridle path; reserved exclusively for horse riders
G9— Bridle path: a road type for riders only. - Closed to riders
C9— Closed to riders and slow traffic.
Signs in the same series
- 'Passenger car' sub-panel
OB9 - The sign does not apply to horse riders (riders excepted)
OB51 - 'Except heavy goods vehicle' sub-panel
OB61 - Sub-panel: does not apply to lorries and buses.
OB63 - The sign does not apply to microcars/moped cars (excepted)
OB65 - The sign does not apply to disabled-person vehicles (excepted)
OB66 - Sub-panel: arrows point left and right, both sides apply.
OB504