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Illinois Class D Written Exam Practice
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Traffic Signals & Road MarkingsStandalone practice
What does a broken white line between lanes normally mean?
Blue A and silver B are in the right of two lanes traveling to the right. A broken white line separates the lanes. The adjacent lane is empty in this snapshot.
Correct answer: Same-direction lanes; you may change lanes when it is safe.
Why
White lines separate same-direction lanes; a broken white line permits movement between lanes after a safety check.
Verified against Illinois Rules of the Road, July2026 · Broken white lane line · p. 82
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