Driver's License Test Prep
Vertical white panel with the black legend TRUCKS USE RIGHT LANE on four lines.
MUTCD
R4-5
Category
regulatory
Color
white
Shape
rectangle vertical
National · MUTCD Sign Reference

Trucks Use Right Lane

Trucks must travel in the right lane.

Posted on multi-lane highways and grades to keep slower or heavier truck traffic out of left lanes used by faster vehicles. The restriction improves traffic flow and reduces lane-change conflicts on long climbs and approaching merges.

In the same family

Related signs

Red octagon with white border and the word STOP in large white letters across the center.
Stop
Downward-pointing red triangle with a white interior triangle and the word YIELD in red letters.
Yield
Small red rectangular plaque with white border and the words ALL WAY in white letters.
All Way Plaque
Red circle on a square white background with the words DO NOT ENTER in white above and below a wide white horizontal bar.
Do Not Enter
Horizontal red rectangle with the words WRONG WAY stacked in large white letters.
Wrong Way
Source

Wikimedia Commons: File:MUTCD R4-5.svg (Public domain)

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