A sign shows a red circle with a red slash across a picture. What does the sign mean?
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A.
The pictured hazard is nearby.
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B.
The pictured action is not allowed. Correct
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C.
The pictured route requires a permit.
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D.
The pictured lane is closed to trucks.
The answer is "The pictured action is not allowed."
In the Illinois manual, a red circle with a red slash across a picture means the pictured action is not allowed. Choice A is the trap for drivers who see any pictogram and assume it warns about a hazard ahead. Warning signs also rely on symbols, but the red slash is what marks a sign as regulatory.
The traps in the wrong answers
A. The pictured hazard is nearby.
A red slash marks a prohibited action, not a nearby hazard. Illinois warning signs, not regulatory ones, alert you to conditions or dangers ahead. This answer reads any pictogram sign as a caution because warning signs also rely on symbols.
C. The pictured route requires a permit.
Permit-required routes are marked with plain text, not a red slash symbol. This answer reads the slash as a limited-access marker instead of a prohibition on the pictured action.
D. The pictured lane is closed to trucks.
A truck-lane restriction shows a truck under the slash, but the rule applies to whatever action is pictured, not only trucks. This answer narrows a general prohibition to trucks by picking a common red-slash example from memory.
This question tests your knowledge of Regulatory Signs in Illinois. Source: Illinois Rules of the Road, "Regulatory Signs, No (Not Allowed)," p.66..
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