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Road Narrows: What It Means & What To Do

Road Narrows (W5-1) - diamond yellow with black warning sign: The road ahead becomes narrower
MUTCD CodeW5-1
CategoryWarning Signs
ShapeDiamond
ColorYellow with black

What Does the Road Narrows Mean?

The road ahead becomes narrower. Proceed with caution.

About This Sign

This sign warns that the roadway narrows, reducing available driving space.

Where you will see it

You see this sign on a stretch of road where the pavement gets narrower, leaving less room between you and oncoming traffic or the road edge.

What to do

  • Reduce your speed as the road tightens.
  • Keep to your own lane and stay away from the edge.
  • Be careful when meeting large vehicles coming the other way.

A common mistake

Drivers often keep their speed because the road still looks fine. Less space means less room for error, so slow down before the narrow part begins.

What to remember for the test

The sign shows the road lines pulling inward. Remember it warns of less driving space, and the message is to proceed with caution.

Commonly Confused With

Other Warning Signs

Frequently Asked Questions

What does the Road Narrows mean?

The road ahead becomes narrower. Proceed with caution.

What shape and color is the Road Narrows?

The Road Narrows uses the Diamond shape and Yellow with black coloring.

Practice Road Sign Questions

Test your knowledge of road signs with free DMV practice tests.