What does the Lane Ends sign mean?

The Lane Ends sign (MUTCD W4-2) is a warning sign under the federal Manual on Uniform Traffic Control Devices, the national standard the states build from. One of the through lanes ends ahead and its traffic must move over.

Source: MUTCD 11th Edition, Chapter 2C, Table 2C-1, checked 2026-09-09.

What shape and color is the Lane Ends sign?

What a diamond means. A warning. It tells you what the road does next and obliges you to do nothing in particular, which is the distinction test writers probe most often.

What yellow means. General warning of a permanent condition ahead.

Warning signs. A diamond reports a condition and orders nothing. What you do about it is left to you, and that gap between a report and an order is what test writers keep probing.

What is the Lane Ends sign often mistaken for?

Merge (W4-1). Lane Ends puts the obligation on the lane that is disappearing.

The Lane Ends sign compared side by side with the Merge sign

Lane Endsthis sign	MergeW4-1
GroupWarning signs	GroupWarning signs
ShapeDiamond	ShapeDiamond
ColorYellow background, black symbol and border	ColorYellow background, black symbol and border
What it meansOne of the through lanes ends ahead and its traffic must move over.	What it meansTwo traffic streams join ahead and drivers on both must adjust speed and position.

Which signs get mistaken for the Lane Ends sign?

• 
  Road NarrowsW5-1

  Lane Ends (W4-2), which removes a lane, and Narrow Bridge (W5-2), which is a specific structure.

• 
  Right (Left) Lane EndsW9-1

  The symbol version, Lane Ends (W4-2), and Lanes Merge (W9-4), where both lanes end and form a single new one.

What does the permit test ask about the Lane Ends sign?

This question is from the practice bank, with the answer marked.

Question 1

This sign means:

1. A.A lane is being added ahead
2. B.Your lane ends ahead and you must merge(correct answer)
3. C.The road narrows but all lanes continue
4. D.A shoulder is closed ahead

Source: MUTCD W4-2

What are the other warning signs?

Stop AheadW3-1

Yield AheadW3-2

Signal AheadW3-3

Be Prepared To StopW3-4

Reduced Speed Limit AheadW3-5

MergeW4-1

Added LaneW4-3

Cross Traffic Does Not Stop plaqueW4-4P

Road NarrowsW5-1

Narrow BridgeW5-2

One Lane BridgeW5-3

Divided Highway (begins)W6-1

All 55 warning signs on one page, or every US road sign by shape and color.

Test yourself on this sign and the rest of the set with a road signs practice test for Florida, Texas or California.

The artwork is the federal design itself, which the manual dedicates to the public domain in MUTCD 11th Edition, Part 1, Section 1D.06, checked 2026-09-09. The Interstate Shield, the 511 pictograph and the National Scenic Byway graphic are named exceptions and are not reproduced anywhere on this site.

Source: Manual on Uniform Traffic Control Devices, 11th Edition. Not affiliated with or endorsed by the Federal Highway Administration or any state agency.