US Road Signs Test
Lane Ends Road Sign
WarningW4-2

Lane Ends Road Sign Meaning

Official Meaning

The number of lanes is reduced ahead. Merge into the adjacent lane.

The Lane Ends sign is a critical part of the US traffic control system, classified under the Warning category.

Shape

Diamond

Color

Yellow

Required Driver Action

When you encounter the Lane Ends sign, you must immediately adjust your driving behavior according to the warning regulations. Failure to comply with this sign can result in traffic citations, points on your license, or dangerous road conditions.

Why the Lane Ends Sign Matters

Understanding the Lane Ends sign is essential for passing your DMV written test and for safe daily driving. This sign is standardized across the United States to ensure that drivers from any state can recognize and respond to it instantly.

Its specific diamond shape and yellow color are designed to be recognizable even in poor visibility conditions, such as heavy rain, fog, or at night. This visual consistency is a key safety feature of the Manual on Uniform Traffic Control Devices (MUTCD).

Common DMV Test Questions

QWhat should you do when you see a Lane Ends sign?

You must follow the specific instruction: the number of lanes is reduced ahead. merge into the adjacent lane.

QWhat category does the Lane Ends sign belong to?

It is classified as a Warning sign.

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Sign Specs

MUTCD CodeW4-2
Standard ColorYellow
Standard ShapeDiamond

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