A circular blue sign displaying white arrows pointing straight up and to the left requires drivers to either proceed straight or turn left.
It is installed at multi-lane junction approaches where turning right is prohibited to maintain safety or traffic flow.
What this sign means
Drivers must either continue straight ahead or turn left at the upcoming junction.
Turning right or making a U-turn is strictly prohibited.
- Blue disc with upward and leftward white arrows.
- Mandatory directional requirement.
- Bans right turns to prevent broadside traffic conflicts.
What to do when you see it
Select your intended movement (ahead or left) and position your vehicle in the correct lane early.
Indicate left if turning, or maintain position without indicating if proceeding straight.
How this sign is tested
Theory test questions evaluate multi-arrow blue signs and ask which manoeuvres are forbidden.
Candidates are tested on lane discipline and indicator usage at complex junctions.
Common mistakes
Attempting an illegal right turn because of missed route planning.
Confusing combined arrow signs with single-arrow directional signs.
Test yourself on this one
Road and traffic signs is the biggest category in the question bank with 102 questions, and signs turn up inside other categories too. Work through them free, no sign-up needed.
Practise road sign questionsFrequently asked questions
Can I turn right at an Ahead or Left Only sign?
No, right turns are strictly banned at junctions displaying this sign.
Do I need to indicate if going straight ahead?
No, do not indicate if continuing straight ahead; only indicate left if turning left.
What category of sign is this?
It is a mandatory regulatory sign instructing drivers on permitted directions.