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Regulatory signs
No left turn
What it means
You must not turn left at this intersection.
White with black or red; a red circle with a slash means prohibited, a green circle means permitted.
Summarised from the Official MTO Driver’s Handbook. Read the original: MTO Driver’s Handbook – Signs ↗
How to recognise it
A white square with a black arrow bending left inside a red circle, and a red slash through the arrow.
Where you will see it
Busy intersections where a left turn would block through traffic, entrances to divided highways, and streets where left turns are banned at rush hour.
What to do when you see it
- 1.Do not turn left at this intersection, even if there is a gap in traffic.
- 2.Go straight or turn right, then reach your destination through a later intersection or a series of right turns.
- 3.Check for a time panel underneath: some versions apply only during the hours shown.
On the G1 test
Tell the curved left arrow apart from the U-shaped arrow of no U-turn. Expect the version with hours posted underneath, which still allows the turn outside those hours.
Practice questions for this sign