Warning
MUTCD W3-1
Stop Ahead Sign — Meaning
- Category
- Warning
- Shape
- Diamond
- Colors
- Yellow, Black
- Text
- STOP AHEAD (with red octagon)
- MUTCD Code
- W3-1
What does the Stop Ahead Sign mean?
The Stop Ahead sign is a yellow diamond showing the words "STOP AHEAD" with a small red octagon symbol. It warns drivers that a Stop sign is approaching, often where the actual Stop sign may be obscured by vegetation, hills, or curves.
-
1
Begin slowing down immediately
-
2
Prepare to come to a complete stop
-
3
Watch for the actual Stop sign and stop line
-
4
Be ready to yield to crossing traffic
-
On rural roads where Stop signs are unexpected -
After hills or curves where the Stop sign may be hidden -
Where the speed limit drops abruptly at the Stop -
In areas with high crash rates at intersections
Stop Ahead is a WARNING sign (yellow diamond), not a regulatory sign. You do not stop at the Stop Ahead sign — only at the actual Stop sign that follows.
Do I stop at the Stop Ahead sign?
No — slow down but do not stop. The actual Stop sign comes next. Stop Ahead is a warning to prepare.
Why is Stop Ahead used if there is already a Stop sign?
Where the Stop sign may be obscured by terrain, vegetation, or curves, the Stop Ahead warning gives drivers extra time to react and slow down safely.
How far in advance is Stop Ahead posted?
Typically 200–500 feet before the Stop sign, depending on the road's speed limit and visibility conditions.
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