What does the number on this state route marker identify?
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A.
The route number of a state highway. Correct
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B.
A U.S. route number shown on a U.S. route shield.
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C.
The posted speed limit for this stretch of highway.
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D.
The distance in miles to the next state line.
The answer is "The route number of a state highway."
The state route marker names a state highway by its route number, and that is the only piece of information it carries: no speed, no distance, no federal designation. The trap is the U.S. route shield answer; both signs carry a black number on a white ground, so a driver working from memory of the more familiar U.S. shield reaches for it before noticing that this circle marks a state route instead.
The traps in the wrong answers
B. A U.S. route number shown on a U.S. route shield.
The U.S. route shield identifies a U.S. numbered route, not a state route. This answer reaches for the more familiar black-on-white U.S. shield learned first, because both markers place black numerals on a white ground.
C. The posted speed limit for this stretch of highway.
The number is a route identifier, not a speed reading. This answer treats any bare number on a roadside sign as a posted speed, a habit carried over from the black-on-white regulatory speed limit sign.
D. The distance in miles to the next state line.
The route marker names the highway itself, not a distance along it. This answer confuses the route circle with the small green mileposts that count miles along a route.
This question tests your knowledge of Guide Signs on the roads of every US state . Source: Manual on Uniform Traffic Control Devices, sign M1-5 (State Route Marker)..
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