What does the sharp turn left warning sign mean?
A sharp turn to the left is ahead. Slow down well before it
The sharp angle of the arrow means a sharp bend or turn in the road ahead, much tighter than a gentle curve. Slow down well before the turn so you can keep control through it.
Why the other answers are wrong
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The road curves only gently to the left ahead
That is the slight bend sign, whose arrow curves smoothly. This arrow swings round at almost a right angle, which is the cue for a sharp turn you must slow down for.
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A T-intersection is ahead
At a T the road ends and you must choose left or right. Here the arrow is one unbroken line that bends and carries on, so the road continues, just sharply.
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Left turns are prohibited ahead
No left turn is a regulatory sign, a red circle with a line through a left-turn arrow. Yellow diamonds like this one warn about the road ahead, they never ban a move.
Quick way to remember
The arrow makes an abrupt right-angle bend, not a gentle one.
Based on the official Ontario MTO Driver's Handbook.
Reading it once is not enough
Drill this question in a scored round and find out what else you are shaky on.
Practise Road Signs: Warnings
