Road signs/Curve Left Sign
Curve Left Sign: what it means and what to do
A curve left sign means the road bends to the left ahead. Slow down before the curve and keep to the middle of your lane.
What it looks like
A yellow diamond with a black arrow bending to the left.
What to do
- Slow down before the curve and stay in the middle of your lane.
- Keep your eyes where the road goes, not on the edge of the road.
- Do not cross the centre line to straighten the curve; oncoming traffic may be in that lane.
Quick check: Curve Left Sign
Two questions to test what you just read.
What does the curve left sign mean?
On the permit test
Tests show the arrow and ask the meaning, and sometimes ask where to position your vehicle.
How it differs from similar signs
| Sign | How to recognise it | What it means |
|---|---|---|
| Curve Left Sign | Yellow diamond warning sign with a black arrow curving to the left | A curve left sign means the road bends to the left ahead. |
| Curve Right Sign | Yellow diamond warning sign with a black arrow curving to the right | A curve right sign means the road bends to the right ahead. |
| Sharp Right Turn Sign | Yellow diamond warning sign with a black arrow turning sharply right | A sharp right turn sign means the road turns sharply to the right ahead. |
| Winding Road Sign | Yellow diamond warning sign with a black winding arrow | A winding road sign means there are three or more curves in a row ahead. |
See them side by side
Common questions
The road curves to the left ahead. Slow before the bend and stay centred in your lane.
All road signs Practice your state’s permit test free
Sources, checked 2026-10-08: Pennsylvania Driver's Manual (PUB 95), Chapter 2: Signals, Signs and Pavement Markings; Manual on Uniform Traffic Control Devices (FHWA). Written in our own words; follow your state’s manual for the exact wording.