Double solid yellow lines painted down the middle of the road mean:
- Railroad crossing ahead.
- Pedestrian crossing ahead.
- Passing is not permitted from either direction. ✓
- Passing is permitted from either direction.
Answer: C. Passing is not permitted from either direction.
Double solid yellow lines down the middle mean passing is not permitted from either direction.
Why this is the answer
The handbook says a solid yellow line on your side of the road marks a no-passing zone, and that you must not cross a solid yellow line to pass. With a solid yellow line on both sides of the center, neither direction has a passing zone, so nobody may cross those lines to pass. Broken or dashed lines are the ones that allow passing or lane changes when it is safe, which is the opposite of what a double solid line shows.
Why the other answers are wrong
- A. Railroad crossing ahead. — Nothing in the passages links yellow center lines to a railroad crossing; that warning comes from signs and pavement markings described elsewhere, not from these lines.
- B. Pedestrian crossing ahead. — The handbook ties pedestrian crossings to white crosswalk lines painted across the road, not to yellow center lines.
- D. Passing is permitted from either direction. — Passing from both directions is what broken or dashed lines allow when safe, while a solid yellow line on your side marks a no-passing zone.
Remember it
Think of it this way: dashes are doors you may open when safe, but solid yellow on your side keeps that door shut.
Official handbook: Texas Driver Handbook (DL-7), Chapter 5: Signals, Signs, and Markers , p. 34