Pavement markingsQuestion 127 of 223

What do yellow lines along the road separate?

  1. Lanes that carry traffic in the same direction
  2. Traffic that travels in opposite directions
  3. The right edge of the road from the shoulder
  4. Lanes for slow vehicles from lanes for fast ones
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Correct answer: Traffic that travels in opposite directions

A yellow center line separates traffic that travels in opposite directions. Yellow also marks the left edge of a divided road or one-way street.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 3A.03 Colors, page 578

Practice pavement markings

Questions last reviewed: 18 October 2026