Blue signs along the highway tell you about:
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A.
Lane closures and detours in a work zone.
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B.
Services like gas, food, and lodging. Correct
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C.
Legal speed limit for the road.
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D.
Distance and direction to upcoming cities.
The answer is "Services like gas, food, and lodging."
Blue motorist service signs point to services and facilities along the highway: gas, food, lodging, rest areas, electric vehicle charging, accessible parking, and the road to a hospital. Directions to cities and exit information are green, work zones are orange, and speed limits are regulatory (black on white). Pairing the color to the category is the fastest way to read a sign at speed. Choice D misleads drivers who lump all informational signage together and reach for blue when distances and directions to cities actually belong to the green guide category.
The traps in the wrong answers
A. Lane closures and detours in a work zone.
Work zone information uses orange signs and devices, not blue. This answer misapplies the blue motorist-service category to work-zone messaging, which uses orange signs and devices, not blue.
C. Legal speed limit for the road.
Speed limits are regulatory: black text on a white rectangular background. This answer misapplies the blue motorist-service category to regulatory speed limit signs, which are black on white, not blue.
D. Distance and direction to upcoming cities.
Distances and directions to cities appear on green guide signs, not blue. This answer conflates blue motorist service signs with green guide or information signs, which give exit information or show the direction of roads or cities.
This question tests your knowledge of Road Signs in Oregon. Source: Oregon Driver Manual, "Motorist Service Signs," p.14..
Related Oregon questions
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