Pavement markingsQuestion 143 of 223
Road seen from above with two through lanes and one lane on the right. A dotted white line is between the right through lane and the right lane, which has an arrow pointing up. Solid yellow line on the left edge, solid white line on the right edge.

What does the dotted white line in this picture separate?

  1. Two lanes that both go straight
  2. A parking lane from the shoulder
  3. A lane for buses from the curb
  4. A through lane from the lane that leaves the road
Show answer

Correct answer: A through lane from the lane that leaves the road

A dotted white lane line separates a through lane that continues from a deceleration or acceleration lane next to it.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 3B.07 White Lane Line Markings for Non-Continuing Lanes, page 589

Practice pavement markings

Questions last reviewed: 18 October 2026