On one-way roads, solid yellow lines are used as left-edge lines.

On one-way roads, solid yellow lines are used as left-edge lines.

• A. Stop lines.
• B. Right-edge lines.
• C. Center lines.
• D. Left-edge lines.

Answer: (D)

On one-way roads, the left edge of the roadway is marked with a solid yellow line. This color convention sets the left boundary of the driving area, so you know where the road ends on that side. White lines typically mark the right edge, and center lines separate lanes or opposing traffic. The solid left-edge line signals you should stay to the right of it and not cross the boundary, which is why it’s identified as the left-edge marking.

On one-way roads, the left edge of the roadway is marked with a solid yellow line. This color convention sets the left boundary of the driving area, so you know where the road ends on that side. White lines typically mark the right edge, and center lines separate lanes or opposing traffic. The solid left-edge line signals you should stay to the right of it and not cross the boundary, which is why it’s identified as the left-edge marking.