Warning Signs
Signal Ahead sign
A traffic light stands just ahead and may be hidden by a curve, crest or trees.
- Shape
- Diamond
- Color
- Yellow with black
- Type
- Warning
What to do
- Ease off the gas, cover the brake, and be ready to stop in case the signal changes as you approach.
How to read it
Diamond. A diamond is a warning. It tells you about a hazard or a change in the road ahead.
Yellow with black. Yellow is a general warning about the road ahead.
Warning sign. Warning signs tell you about a hazard or a change ahead so you can slow down in time.
Signs follow the national standard (the MUTCD) in every state. Your state handbook is the final word for your test.
Related signs
Signs that look similar or come up together on the test.
Road signs quiz and flashcards
Drill every sign on your phone, along with the rest of your state’s test.
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