Texas Defensive Driving Written Practice Test

When is it legal to cross a double yellow line?

1. To make a left turn into or out of a driveway or street

2. To pass another vehicle

3. Whenever it is safe

4. To change lanes

The correct answer is: To make a left turn into or out of a driveway or street

Crossing a double yellow line is primarily legal when making a left turn into or out of a driveway or street. This rule is in place to allow drivers the necessary flexibility to access these locations safely. The double yellow line serves as a barrier indicating that passing is not permitted; however, exceptions exist for specific maneuvers that require crossing the line, such as turning left. Options that suggest passing another vehicle, changing lanes, or doing so whenever it is safe are incorrect because these actions would violate the intended purpose of double yellow lines, which are meant to signify that overtaking is not allowed due to safety concerns. Thus, the correct understanding of the law focuses on access to driveways and local streets, which justifies crossing in those specific situations.