Yellow lines that divide opposing lanes of traffic are called what?

• A. Center lines
• B. Edge lines
• C. Yellow lines
• D. Lane lines

Answer: (A)

Center lines are the markings that separate traffic moving in opposite directions. The yellow color signals that you’re looking at the boundary between lanes of opposing directions. These lines indicate passing rules: a solid center line means you shouldn’t cross to pass, while a dashed center line lets you pass when it’s safe. If there are double yellow lines, passing is not allowed in either direction. This differs from edge lines, which mark the outer edge of the roadway (usually white), and lane lines, which show the boundaries of lanes within the same direction (often white as well). So the yellow lines that divide opposing lanes are called center lines.