Question

what does a single solid white line mean? you are in a merge lane. you may cross the line to change lanes. you may only cross the line in order to avoid a hazard. you may not cross the line under any circumstances.

Explanation:

To determine the meaning of a single solid white line, we analyze each option:

• "You are in a merge lane": A single solid white line isn't specifically for merge lanes. Merge lanes have their own markings.
• "You may cross the line to change lanes": A single solid white line doesn't allow free lane changes; that's for broken lines.
• "You may only cross the line in order to avoid a hazard": A single solid white line generally means you should stay in your lane, but in an emergency (to avoid a hazard), you can cross it.
• "You may not cross the line under any circumstances": This is incorrect as emergencies (hazard avoidance) allow crossing.

The correct understanding of a single solid white line is that you should stay in your lane, but can cross to avoid a hazard.

Answer:

You may only cross the line in order to avoid a hazard.