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No U-Turn: What It Means & What To Do

No U-Turn (R3-4) - rectangle (vertical) white with black/red regulatory sign: U-turns are not permitted at this location
MUTCD CodeR3-4
CategoryRegulatory Signs
ShapeRectangle (vertical)
ColorWhite with black/red

What Does the No U-Turn Mean?

U-turns are not permitted at this location.

About This Sign

An alternative no U-turn sign with a red circle and slash over a U-turn arrow symbol, clearly indicating that U-turns are prohibited.

Where you will see it

This sign appears where U-turns are not allowed. It faces you before the point where you might reverse direction.

What to do

  • Do not make a U-turn at this location.
  • Continue ahead to a place where a U-turn or other turn is allowed.
  • Use a different route to head back the other way.

A common mistake

Drivers who realize they went the wrong way often turn around on the spot. When this sign is posted, a U-turn is not permitted, however empty the road looks.

What to remember for the test

The U-shaped arrow inside a red circle and slash is the clue. Meaning: U-turns are not permitted at this location.

Commonly Confused With

Other Regulatory Signs

Frequently Asked Questions

What does the No U-Turn mean?

U-turns are not permitted at this location.

What shape and color is the No U-Turn?

The No U-Turn uses the Rectangle (vertical) shape and White with black/red coloring.

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