When should you drive in a reversible lane with a lane control signal showing a red X?
- If there is no visible oncoming traffic.
- If you are passing the car in front of you.
- Never. ✓
- Between sunset and sunrise.
Answer: C. Never.
You should never drive in a reversible lane when its lane control signal shows a red X.
Why this is the answer
The handbook describes lane-use control signals as overhead signals that tell you whether you may use a specific lane. When a red X is displayed above a lane, the handbook says a driver should not drive in that lane. It does not list any exception for clear traffic, passing, or time of day. A green downward arrow is what permits you to use the lane, so with a red X the correct choice is never to drive in it.
Why the other answers are wrong
- A. If there is no visible oncoming traffic. — Clear oncoming traffic does not create an exception; a red X still means you should not drive in that lane.
- B. If you are passing the car in front of you. — Passing the car ahead does not override the signal; the red X still tells you not to use the lane.
- D. Between sunset and sunrise. — The handbook gives no sunset-to-sunrise exception, so the time of day does not change what a red X means.
Remember it
Red X means treat that lane as closed to you; wait for a green arrow.
Official handbook: Texas Driver Handbook (DL-7), Chapter 5: Signals, Signs, and Markers , p. 32