What does a LANE CLOSED AHEAD work zone sign tell you?
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A.
Traffic in the closed lane must exit the highway.
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B.
All lanes of the highway are shut down ahead.
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C.
A particular lane will be closed a set distance ahead. Correct
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D.
The road ahead has been permanently rerouted.
The answer is "A particular lane will be closed a set distance ahead."
The LANE CLOSED AHEAD sign warns that one particular lane will be closed at a specified distance ahead, giving you room to merge before the lane ends. Drivers who read it as an EXIT ONLY panel pick A, thinking traffic in that lane has to leave the highway, but LANE CLOSED AHEAD only warns the lane ends, not that it becomes an exit ramp.
The traps in the wrong answers
A. Traffic in the closed lane must exit the highway.
The sign directs a merge out of the ending lane, not a required exit from the highway. This answer confuses LANE CLOSED AHEAD with an EXIT ONLY panel, where a lane actually leaves the highway as a ramp.
B. All lanes of the highway are shut down ahead.
A full highway shutdown would be posted as ROAD CLOSED, not LANE CLOSED AHEAD. This answer reads the word 'closed' and generalizes it to every lane, skipping past the word 'lane' that limits the closure to one.
D. The road ahead has been permanently rerouted.
Permanent reroutes use detour and guide signs, not an orange work zone sign. This answer reads 'closed' as final and pictures a permanent detour, ignoring the orange color that marks work zone signs as temporary.
This question tests your knowledge of Construction Signs in Pennsylvania. Source: Pennsylvania Driver Manual, "Chapter 2, Work Zone Signs, LANE CLOSED AHEAD," p.18..
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