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Regulatory signs
No left turn
What it means
A red circle with a diagonal bar means the action inside is not permitted. You must not turn left here.
White with black or red; a red circle with a slash means prohibited, a green circle means permitted.
Summarised from the Alberta Driver’s Guide. Read the original: Traffic control ↗
How to recognise it
A white square with a red circle and diagonal red bar over a black arrow turning left.
Where you will see it
At intersections and driveways where a left turn would be unsafe or would block traffic.
What to do when you see it
- 1.Do not turn left at this location.
- 2.Go straight or turn right, and plan another route to reach a destination on the left.
On the knowledge test
Any red circle with a diagonal bar means the action inside is not permitted. Picture questions often pair this with the green-circle turn left only sign.
Practice questions for this sign