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Merge: What It Means & What To Do

Merge (W4-1) - diamond yellow with black warning sign: Two lanes of traffic are merging into one
MUTCD CodeW4-1
CategoryWarning Signs
ShapeDiamond
ColorYellow with black

What Does the Merge Mean?

Two lanes of traffic are merging into one. Be prepared to allow vehicles to merge.

About This Sign

The merge sign warns that traffic from another road will join your lane ahead.

Commonly Confused With

Lane Ends (W4-2) - diamond yellow with black warning sign: The lane you are in ends ahead

Lane Ends

W4-2

Other Warning Signs

Sharp Turn (W1-1) - diamond yellow with black warning sign: A sharp turn is ahead

Sharp Turn

W1-1

Curve Ahead (W1-2) - diamond yellow with black warning sign: A curve is ahead

Curve Ahead

W1-2

Reverse Turn (W1-3) - diamond yellow with black warning sign: The road ahead makes two sharp turns in opposite directions

Reverse Turn

W1-3

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