Driver's License Test Prep
A single solid white line running lengthwise down a dark roadway.
MUTCD
3B.04
Position
lane
Color
white
Pattern
solid
Type
linear
National · Pavement Markings

Solid White Lane Line

Solid white line between same-direction lanes; discourages lane changes through the marked area.

A solid white line separates lanes of traffic moving in the same direction where lane changes are discouraged, such as approaches to intersections, exit and entrance ramp gores, and managed-lane buffers. Drivers should stay in their lane through the solid section; crossing it is allowed only when necessary and is prohibited in some states.

In the same family

Related markings

Source

AI-generated SVG, Federal MUTCD 11th Edition (2023) Part 3 reference (original)

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