What is the primary purpose of lane markings?

• A. They guide where you should drive, where you may pass, and where you should stay in your lane.
• B. They indicate speed limits.
• C. They are optional.
• D. They show where you may stop for emergencies.

Answer: (D)

Lane markings set the boundaries and guide how to move with traffic. They show where you should drive, where you may pass, and where you should stay in your lane. Dashed lines indicate you can change lanes or pass when it’s safe, while solid lines mean you shouldn’t cross. They help organize the flow of traffic, especially at merges and turns, and keep vehicles in their designated lanes. Speed limits come from signs, not lane markings, and lane markings aren’t optional; they define where you belong on the road and where you shouldn’t stop for emergencies—that information comes from shoulders, signs, or designated stopping areas.