Skip to main content
Early access: The Permit Test is brand new and everything is free right now. Spot a problem? Mail us.
The Permit Test
Added Lane (MUTCD W4-3 sign)

Added Lane

warning sign · diamond · yellow

Two roadways join ahead but a new lane is added — no merging required from either side.

Visual breakdown
Yellow diamond with two parallel arrows converging alongside each other without joining into one.
Shape recognition
Two arrows stay side by side — compare the merge sign, where one arrow bends into the other.
Color recognition
Yellow warning that here, uniquely, means relax: everyone keeps a lane.
Memory trick
Added lane = no blending needed. Two arrows, two lanes, zero conflict.
Real-world example
An on-ramp that becomes its own highway lane: the entering driver doesn't need a gap, and the highway driver doesn't need to make one.
Common mistakes
Braking to 'let the ramp in' when no merge exists — unnecessary and rear-ends the flow. Know the difference from W4-1 (Merge).
Quick recall method
Parallel arrows = new lane added, no merge.

Practice this sign

1 practice question cover this sign.

Take a road signs test