Driver's License Test Prep
Yellow diamond showing a black traffic signal head with red, yellow, and green lenses
MUTCD
W3-3
Category
warning
Color
yellow
Shape
diamond
National · MUTCD Sign Reference

Signal Ahead Symbol

A traffic signal is ahead; prepare to stop if the light is red or changes.

Alerts drivers to a traffic signal that may not be visible far enough in advance, often on high-speed approaches or beyond a curve or crest. Cover the brake and watch the signal indication so you can stop smoothly if required.

In the same family

Related signs

Yellow diamond with black border containing a thick black arrow that travels up and bends ninety degrees to point left.
Turn Left
Yellow diamond with black border containing a thick black arrow that travels up and bends ninety degrees to point right.
Turn Right
Yellow diamond with black border containing a thick black arrow that sweeps in a smooth curve from lower right up to the upper left.
Curve Left
Yellow diamond with black border containing a thick black arrow that sweeps in a smooth curve from lower left up to the upper right.
Curve Right
Yellow diamond with black border showing a black curving arrow sweeping up and to the left, with the numerals 35 below it.
Curve Left With Advisory Speed
Source

Wikimedia Commons: File:MUTCD W3-3.svg (Public domain)

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