A Single Solid White Line on the road marks what?

A Single Solid White Line on the road marks what?

• A. The center of the road.
• B. The edge of the road.
• C. A lane boundary between directions opposite.
• D. Traffic lanes going in the same direction (including one-way streets)

Answer: (D)

A single solid white line marks a lane boundary between traffic moving in the same direction (including on one-way streets). It’s a guide that tells you to stay in your current lane and not drift into the next lane for passing. This differs from a solid yellow line, which separates opposite directions and usually means no passing, and from an edge line that marks the outer edge of the roadway. In short, the line shows where lanes of the same direction are divided, helping you maintain proper position and lane discipline.

A single solid white line marks a lane boundary between traffic moving in the same direction (including on one-way streets). It’s a guide that tells you to stay in your current lane and not drift into the next lane for passing. This differs from a solid yellow line, which separates opposite directions and usually means no passing, and from an edge line that marks the outer edge of the roadway. In short, the line shows where lanes of the same direction are divided, helping you maintain proper position and lane discipline.