When should you drive in a lane under a lane signal showing a red X?
- If there is no visible oncoming traffic.
- If you are passing the car in front of you.
- Between sunset and sunrise.
- Never. ✓
Answer: D. Never.
Never drive in a lane under a red X lane signal.
Why this is the answer
The handbook's lane signal section lists what each signal means, and for the red X it says plainly that you must never drive in a lane under it. The same section says a yellow X means the lane is about to turn red and a green arrow means you may use the lane, so the red X is the one signal that closes the lane completely to you. Nothing about traffic conditions, passing, or time of day changes that.
Why the other answers are wrong
- A. If there is no visible oncoming traffic. — An empty lane ahead does not matter here, because the red X closes the lane regardless of whether any oncoming traffic is visible.
- B. If you are passing the car in front of you. — Passing another car is no exception; the handbook gives no allowance to use a red X lane to overtake.
- C. Between sunset and sunrise. — The red X applies at any hour, and the handbook sets no nighttime-only rule for it.
Remember it
Treat the red X like a wall in that lane: yellow X means get ready to leave, green arrow means you may stay.