Solid Double White Lines: What It Means & What To Do
MUTCD CodePM-4
CategoryPavement Markings
ShapeDouble solid line
ColorWhite
What Does the Solid Double White Lines Mean?
Separate same-direction lanes that you must not cross.
About This Sign
Double solid white lines separate lanes of traffic traveling in the same direction where crossing is prohibited, such as near toll plazas or where a lane must not be entered or exited. Do not cross them.
Other Pavement Markings
Frequently Asked Questions
What does the Solid Double White Lines mean?
Separate same-direction lanes that you must not cross.
What shape and color is the Solid Double White Lines?
The Solid Double White Lines uses the Double solid line shape and White coloring.
Practice Road Sign Questions
Test your knowledge of road signs with free DMV practice tests.