A flashing yellow light at an intersection tells you to do what?
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A.
Proceed with caution. Correct
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B.
Stop and yield before entering.
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C.
Stop completely as at a four-way stop.
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D.
Merge into the right lane.
The answer is "Proceed with caution."
Flashing yellow means slow down and enter the intersection with care; unlike flashing red, it does not require a stop. Choice B is the trap for drivers who apply the flashing-red rule to any flashing color, adding a stop the manual reserves for the red version.
The traps in the wrong answers
B. Stop and yield before entering.
Stopping and yielding is the instruction for flashing red, not flashing yellow. This answer blends the two flashing lights into one stop-and-yield rule instead of keeping them separate.
C. Stop completely as at a four-way stop.
A full stop is required at a dark or flashing-red signal, not at flashing yellow. This answer defaults to a four-way-stop response whenever a light is not showing steady green.
D. Merge into the right lane.
Flashing yellow governs entry speed and caution, not lane choice. This answer reads the yellow light as a lane-use directive the way a yellow X over a lane would be.
This question tests your knowledge of Traffic Lights in Illinois. Source: Illinois Rules of the Road, "Traffic Signals - Flashing Lights," p.77..
Related Illinois questions
- At a steady red light with no marked stop line and no crosswalk, where must you stop? →
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