Lanes of traffic moving in the same direction are divided by ____ lines.
- Yellow
- White ✓
- Red
- Black
Answer: B. White
White lines divide lanes of traffic moving in the same direction.
Why this is the answer
The Texas handbook says solid white lines are used for lane use control, pavement edge lines, shoulder markings, channelizing, and transitions. It also says crossing a solid white line should be avoided when possible, and crossing is prohibited with double solid white lines. Yellow, by contrast, marks a no-passing zone on your side and a left edge you must not cross. Putting those points together, white is the pavement marking tied to controlling and separating lanes, so same-direction lanes are divided by white lines.
Why the other answers are wrong
- A. Yellow — Yellow lines are described as marking a no-passing zone on your side and a left edge you must not cross, not as dividers for same-direction lanes.
- C. Red — The passages do not mention red pavement lines as lane dividers.
- D. Black — The passages do not mention black pavement lines as lane dividers.
Remember it
Think white for lane control; yellow for no-passing and left-edge warnings.
Official handbook: Texas Driver Handbook (DL-7), Chapter 5: Signals, Signs, and Markers , p. 34