Sign D1_zb: Roundabout with mandatory direction, follow the sign.
Legal meaning
Roundabout; compulsory direction of travel (version without a supplementary plate).
Shape and colour
Round blue sign with three white arrows in a circle: compulsory direction on the roundabout, anticlockwise.
Where the sign stands
On the central island of the roundabout, straight opposite every approach, so it is visible when entering.
What the exam asks about this sign
The exam asks which way to go on the roundabout: the arrows show the compulsory direction, anticlockwise. Without a plate and without shark's teeth the normal rule applies on the roundabout: traffic from the right (the entering traffic) has priority — in practice almost every roundabout carries B6 so that traffic on the roundabout goes first. Trap: signalling when entering is not required, signalling when leaving is.
Often confused with
- Warning for a roundabout ahead
J9— Triangle: warns of the roundabout, orders nothing. - The sign or obstacle may be passed on either side.
D3— Two arrows pointing down on a traffic island: pass on either side, no roundabout. - Give way to drivers on the crossing road
B6— Stands on the approach and settles priority; D1 only settles direction.
Signs in the same series
- The sign or obstacle may be passed on either side.
D3 - Mandatory direction shown on the sign: straight ahead here.
D4 - Mandatory direction shown: turn here, follow the arrow.
D5 - Mandatory: one of the shown directions, e.g. straight or turn.
D6 - Mandatory: pick one shown direction; pass obstacle left or right.
D7