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Lane Closed: What It Means & What To Do

Lane Closed (W20-5) - diamond orange with black construction sign: A lane is closed ahead
MUTCD CodeW20-5
CategoryConstruction Signs
ShapeDiamond
ColorOrange with black

What Does the Lane Closed Mean?

A lane is closed ahead. Merge into the open lane.

About This Sign

This sign warns that one or more lanes are closed due to construction. Begin merging early to avoid delays.

Where you will see it

You see this sign before a construction area where one or more lanes are closed. It gives you time to get into the open lane before you reach the closure.

What to do

  • Check your mirrors and signal.
  • Merge into the open lane early, while there is plenty of room.
  • Do not wait until the last moment to move over.

A common mistake

Racing down the closed lane and forcing your way in at the end. Beginning the merge early avoids delays and sudden moves, so move over as soon as it is safe.

What to remember for the test

Remember the action: merge into the open lane, and start early. The sign warns that one or more lanes are closed because of construction.

Other Construction Signs

Frequently Asked Questions

What does the Lane Closed mean?

A lane is closed ahead. Merge into the open lane.

What shape and color is the Lane Closed?

The Lane Closed uses the Diamond shape and Orange with black coloring.

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