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Do Not Block Intersection: What It Means & What To Do

Do Not Block Intersection (R10-7) - rectangle (vertical) white with black/red regulatory sign: Do not enter the intersection unless you can clear it completely
MUTCD CodeR10-7
CategoryRegulatory Signs
ShapeRectangle (vertical)
ColorWhite with black/red

What Does the Do Not Block Intersection Mean?

Do not enter the intersection unless you can clear it completely.

About This Sign

This sign prohibits drivers from stopping in the intersection, which would block cross traffic when the light changes.

Where you will see it

This sign is posted at busy signalized intersections where traffic often backs up. It warns you not to pull into the intersection if you may get stuck there when the light changes.

What to do

  • Enter only if you can drive completely through and clear the intersection.
  • Wait behind the line if traffic ahead is stopped.
  • Do not follow other cars in on a green you cannot finish.

A common mistake

A green light makes many drivers think they can go in, even with no space ahead. Stopping in the intersection blocks cross traffic when the light changes.

What to remember for the test

Green does not always mean go: you must be able to clear the intersection first. The sign prohibits stopping inside it.

Other Regulatory Signs

Frequently Asked Questions

What does the Do Not Block Intersection mean?

Do not enter the intersection unless you can clear it completely.

What shape and color is the Do Not Block Intersection?

The Do Not Block Intersection uses the Rectangle (vertical) shape and White with black/red coloring.

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