Driver's License Test Prep
Oregon Practice Traffic Lights

An Oregon traffic light is flashing red. How should you treat it?

  1. A.
    As a yield sign: slow down and proceed when the way is clear.
  2. B.
    Stop only if you can do so safely; otherwise drive carefully through.
  3. C.
    Drive through without stopping if no traffic is visible.
  4. D.
    As a stop sign: come to a complete stop, then go when safe. Correct
The Why

The answer is "As a stop sign: come to a complete stop, then go when safe."

Oregon treats a flashing red like a stop sign: come to a complete stop before the stop line or crosswalk, yield to any pedestrians and cross traffic, and proceed only when it is safe. Choice B is the tempting miss because it borrows the steady-yellow rule (if you cannot stop safely, drive carefully through) and misapplies it to a flashing red, which the manual makes as strict as a stop sign.

Why the others miss

The traps in the wrong answers

A. As a yield sign: slow down and proceed when the way is clear.

A flashing yellow is closer to a yield (slow and proceed). A flashing red is more restrictive: you must stop. This answer half-remembers every flashing signal as slow-and-proceed and pictures a yield sign, missing that flashing red is the stricter of the two flashing colors.

B. Stop only if you can do so safely; otherwise drive carefully through.

That is the steady yellow rule, which warns the signal is about to turn red. A flashing red is treated as a stop sign: a complete stop is required every time, not only when stopping is convenient. This answer carries the steady-yellow habit of driving carefully through when a safe stop is not possible into a flashing red, treating the full stop as optional.

C. Drive through without stopping if no traffic is visible.

Any flashing red requires a complete stop at the line, regardless of visible traffic. This answer applies the empty-intersection rolling-stop habit drivers develop at quiet stop signs, ignoring that a flashing red is treated exactly like a stop sign.

The Rule

This question tests your knowledge of Traffic Lights in Oregon. Source: Oregon Driver Manual, "Signs & Traffic Signals: Traffic Signals," p.15..

More from this topic

Related Oregon questions

More than a book

You just took one Oregon question apart. The book does it for the whole test.

The Oregon book unlocks a free companion: an adaptive study plan, progress synced across your devices, a denser laminate cheat sheet, and a test-day walkthrough. Verify your copy once, usually in seconds; there's nothing extra to buy.

Get the book on Amazon

$18.99 paperback, free companion included.

Free study plan

Your free Oregon study plan

A short run of study emails for the Oregon DMV test: what to drill, the rules people trip on, and a final pre-test checklist. The printable cheat sheet is free to grab either way.

One email a few times a month. No spam, unsubscribe anytime. Privacy.