How far in advance must you signal before a lane change in Oregon?
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A.
At least 100 feet. Correct
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B.
Whenever it's convenient, no minimum distance.
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C.
At least 50 feet.
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D.
At least 200 feet.
The answer is "At least 100 feet."
If your vehicle is moving in traffic, you must use your turn signal at least 100 feet before a turn or lane change. The 100-foot rule applies whether you're turning at an intersection, changing lanes on a freeway, or changing lanes on a city street. When pulling away from a curb after parking, signal long enough to alert traffic; no specific distance is set for that case. Cutting the required distance in half is what pulls a driver toward C rather than the 100-foot minimum the manual actually sets.
The traps in the wrong answers
B. Whenever it's convenient, no minimum distance.
The manual is explicit about a 100-foot minimum. This answer ignores the manual's explicit 100-foot rule by treating signal timing as discretionary.
C. At least 50 feet.
Oregon requires at least 100 feet, not 50. This answer halves the required signal distance; the manual sets the minimum at 100 feet, not 50.
D. At least 200 feet.
200 feet exceeds the requirement. This answer doubles the required distance; the manual specifies a 100-foot minimum, not 200.
This question tests your knowledge of Lane Changes & Merging in Oregon. Source: Oregon Driver Manual, "Turns & Intersections, Turn Signals," p.38..
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