New York DMV Permit Written TestRules of the Road and Traffic LawsMedium

You are making a left turn at an intersection with a green light. There is a solid white line separating the turn lane from the adjacent through lane. What does this solid white line indicate?

  1. AIt indicates a preferential lane for high-occupancy vehicles during peak hours.
  2. BIt marks the point beyond which you cannot change your mind about the turn.
  3. CYou should not cross this line, as it discourages lane changes within the intersection.
  4. DYou must stay within your lane during the entire turn, as it is a protected turn.
Show answer & explanation

Correct answer: C. You should not cross this line, as it discourages lane changes within the intersection.

A solid white line indicates that lane changes are discouraged or prohibited. In the context of a turn lane at an intersection, it means you should not change lanes once you are in that turn lane.

Why the other options are wrong

  • A. Preferential lanes are typically marked with diamond symbols and specific signage, not just a solid white line.
  • B. While it's wise to commit to your turn, the line's primary meaning is about lane changes, not decision points.
  • D. A solid white line does not necessarily mean a protected turn; a green arrow indicates a protected turn.

Solid White Line (Lane Marking)

A solid white line on the roadway indicates that lane changes are discouraged or prohibited, particularly where it would be hazardous.

  • Discourages lane changes.
  • Often found near intersections, on ramps/off ramps, and tunnels.
  • Separates traffic flowing in the same direction.

Memory trick: White lines are like walls, solid means stay put, broken means you can peek and move.

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