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Illinois Class D Written Exam Practice
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Traffic Signals & Road MarkingsStandalone practice
The traffic light ahead changes from green to steady yellow while you can still stop smoothly before the line. What is the safe response?
Correct answer: Stop smoothly before the stop line.
Why
Steady yellow warns that green is ending and red is about to begin. In this situation you can stop smoothly, so stop before the line. Do not accelerate to beat the light, and do not enter once red appears. Avoid a panic stop when already too close to stop safely.
Verified against Illinois Rules of the Road, July2026 · Steady yellow light · p. 80
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