What does a solid yellow traffic signal indicate?

• A. Stop immediately.
• B. Proceed with caution.
• C. The signal is about to turn red; slow down and prepare to stop safely.
• D. The light is malfunctioning.

Answer: (C)

Solid yellow means the light is about to turn red. Slow down and prepare to stop safely before the intersection. Don’t try to speed up to beat the red. If you’re too close to stop safely, you may proceed through with caution. If the signal were malfunctioning, treat the intersection according to local rules (often as a stop or four-way stop).