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Illinois Class D Written Exam Practice
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Traffic Signals & Road MarkingsStandalone practice
A red X is displayed directly above a traffic lane. What does it tell you?
Correct answer: Do not drive in that lane.
Why
A red X above a lane means do not drive in that lane. Use an open, permitted lane and obey any other traffic-control signs or directions. Lane-control signals may change the direction or availability of lanes.
Verified against Illinois Rules of the Road, July2026 · Red X over a lane · p. 81
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