Driver's License Test Prep
Oregon Practice Regulatory Signs

What does a No Turn on Red sign require at an intersection with a traffic light?

  1. A.
    Stop, then turn when the intersection is clear.
  2. B.
    Wait for the signal to turn green before turning. Correct
  3. C.
    Turn only when a green arrow is displayed.
  4. D.
    Turn only after yielding to oncoming traffic.
The Why

The answer is "Wait for the signal to turn green before turning."

Oregon allows turns on red after a complete stop in most cases, but a No Turn on Red sign overrides that rule for that intersection. You must wait for the signal to turn green before turning. The sign is posted where a turn on red would conflict with sight lines, pedestrian flow, or other movements. Choice A is what a driver falls back on when applying the default stop-then-turn-on-red rule and forgetting the sign overrides it at this intersection.

Why the others miss

The traps in the wrong answers

A. Stop, then turn when the intersection is clear.

This is the default turn-on-red rule, which the sign overrides. This answer applies the general stop-then-turn-on-red rule and ignores that the No Turn on Red sign overrides it at this intersection.

C. Turn only when a green arrow is displayed.

The sign does not require a green arrow; a steady green circular signal is enough to turn. This answer adds a green-arrow requirement the manual does not state; the rule only requires waiting for the signal to turn green.

D. Turn only after yielding to oncoming traffic.

This describes a permitted turn on red, which is exactly what the sign prohibits. This answer treats the intersection as a permitted-turn-on-red scenario, ignoring that the sign forbids any turn during the red light.

The Rule

This question tests your knowledge of Regulatory Signs in Oregon. Source: Oregon Driver Manual, "Regulatory Signs – Other," p.9..

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