You are driving an Oregon highway and see signs marked SAFETY CORRIDOR carrying diamond-shaped flags. What do those flags mark?
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A.
A stretch with more fatal and serious crashes than average. Correct
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B.
A section where the speed limit changes without posted signs.
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C.
A temporary work zone where fines are doubled.
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D.
A detour route around a closed section of highway.
The answer is "A stretch with more fatal and serious crashes than average."
Safety corridors are designated stretches of highway with more fatal and serious injury collisions than the statewide average, and the diamond-shaped flags call for you to turn your lights on for the length of the corridor. The work-zone answer tempts drivers who recall orange diamond flags from construction warning signs; safety-corridor flags look similar but mark crash history, not active roadwork.
The traps in the wrong answers
B. A section where the speed limit changes without posted signs.
A safety corridor does not change the speed limit by itself, and Oregon speed limits are not altered without signing. This answer assumes any special corridor designation implies an unposted speed reduction, borrowing from variable speed limit rules seen on some interstates.
C. A temporary work zone where fines are doubled.
Work zones are marked by orange traffic control devices, not by safety corridor signs and flags. This answer pins the doubled-fine work-zone rule to safety corridors because both use eye-catching diamond flags to flag driver attention.
D. A detour route around a closed section of highway.
A safety corridor does not reroute you; it stays on the same highway and asks for lights on. This answer reads the diamond flags as wayfinding, the way orange detour signs redirect drivers around closures, rather than as an in-place hazard warning.
This question tests your knowledge of Guide Signs in Oregon. Source: Oregon Driver Manual, "Route, Guide, and Information Signs (Safety Corridors)," p.13..
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