Driver's License Test Prep
US Road Signs Warning Signs

What does this warning sign tell a driver about the road ahead?

Yellow diamond with a black T-shaped symbol showing a vertical road and a perpendicular road branching off to the right.
  1. A.
    Two roads merge together and traffic from the right will enter your lane.
  2. B.
    A side road enters from the right ahead at roughly a right angle. Correct
  3. C.
    The road ahead ends at a T-intersection where you must turn.
  4. D.
    Roads cross the main roadway from both sides ahead.
The Why

The answer is "A side road enters from the right ahead at roughly a right angle."

The Side Road (Right) sign warns that a road joins the main roadway from the right ahead at roughly a right angle, so watch for vehicles entering or pulling out from that side road. The trap is the crossroad sign, which shows entering roads on both sides; a driver who glances at the diamond without noting that only the right arm is drawn reaches for the crossroad warning instead.

Why the others miss

The traps in the wrong answers

A. Two roads merge together and traffic from the right will enter your lane.

Describes a merge sign, where two roadways converge and drivers must adjust for entering traffic on a shared alignment. This answer reads the perpendicular stub as a converging lane and picks the merge warning learned first.

C. The road ahead ends at a T-intersection where you must turn.

Describes a T-intersection sign, where the through road terminates and the driver has to turn left or right. This answer treats the branching stub as the end of the through road rather than a side road joining it.

D. Roads cross the main roadway from both sides ahead.

Describes a crossroad sign, which shows a side road entering from each side of the main roadway. This answer adds an opposing arm the sign never draws, reaching for the four-way crossroad symbol instead.

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 W2-2R (Side Road (Right))..

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