What is indicated by two sets of double yellow lines spaced 2 feet or more apart?
- Lanes of traffic moving in the same direction.
- Barrier. ✓
- Carpool/High-Occupancy (HOV) lane.
Answer: B. Barrier.
Two sets of solid double yellow lines spaced two or more feet apart are considered a barrier.
Why this is the answer
The handbook describes this exact marking: when two sets of solid double yellow lines sit at least two feet apart, they form a barrier. You are not supposed to drive on or over it, make a left turn across it, or make a U-turn across it, except where there are designated openings. A second passage reinforces this by listing crossing two sets of double yellow lines as something never to do when making a U-turn on a divided highway.
Why the other answers are wrong
- A. Lanes of traffic moving in the same direction. — Traffic moving in the same direction is marked by white lines, such as a single solid white line, not by double yellow lines.
- C. Carpool/High-Occupancy (HOV) lane. — A carpool or HOV lane is separated by double solid white lines, which mark a barrier between regular use and preferential use lanes.
Remember it
Wide gap between two double yellow sets means treat it like a wall: stay off it, no left turns, no U-turns except at openings.
Official handbook: California Driver Handbook (DL 600), Section 6: Navigating the Roads, p. 13