Driver's License Test Prep
US Road Signs Warning Signs

What does this Two-Way Traffic sign tell a driver about the road ahead?

Yellow diamond with two straight black arrows side by side, left arrow pointing down and right arrow pointing up
  1. A.
    The one-way roadway changes to two-way traffic ahead. Correct
  2. B.
    The right lane ends and traffic must merge left.
  3. C.
    A divided highway with a median begins ahead.
  4. D.
    A no-passing zone begins at this sign.
The Why

The answer is "The one-way roadway changes to two-way traffic ahead."

The yellow diamond warns that a one-way roadway is changing to two-way traffic ahead, so you should stay right, hold off on passing, and watch for oncoming vehicles. The trap is the no-passing-zone reading: the entry does say do not pass at this sign, and a learner who fixates on that phrase reaches for the pennant-shaped no-passing zone sign instead of the warning that opposing traffic is about to appear.

Why the others miss

The traps in the wrong answers

B. The right lane ends and traffic must merge left.

A lane ending or merge is announced by a different diamond showing one lane tapering into another. This answer swaps the warning about oncoming traffic for a lane-reduction merge cue.

C. A divided highway with a median begins ahead.

This diamond warns that two-way undivided travel resumes, which is the opposite of a divided highway starting. This answer reads the two arrows on the sign as the start of a divided roadway rather than the return of opposing traffic.

D. A no-passing zone begins at this sign.

A no-passing zone is marked by a yellow pennant on the left shoulder, not by this warning diamond. This answer latches onto the do-not-pass guidance and mistakes the warning for the pennant that starts a no-passing zone.

The Rule

This question tests your knowledge of Warning Signs on the roads of every US state . Source: Manual on Uniform Traffic Control Devices, sign W6-3 (Two-Way Traffic)..

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