You may cross a single solid white line on the highway:
Whenever you want to.
If traffic conditions require you to do so.
Only to turn into a driveway.
Only to make a U-turn.
The Correct Answer and Explanation is :
The correct answer is:
If traffic conditions require you to do so.
Explanation:
On highways, solid white lines are used to indicate lanes that should not be crossed except in specific situations. These lines are generally placed between lanes going in the same direction to suggest that lane changes are discouraged, but not outright prohibited. The main purpose of these solid white lines is to enhance safety by preventing sudden or unnecessary lane changes that could lead to accidents.
However, in some situations, crossing a solid white line is permissible if traffic conditions dictate that it is necessary for safety or efficiency. For example, if a driver needs to avoid an obstruction in their lane or when merging is required due to the end of a lane, crossing a solid white line is allowed to maintain the flow of traffic and reduce potential collisions.
Why the Other Options Are Incorrect:
- Whenever you want to: This answer is incorrect because crossing a solid white line at will is not permitted. Doing so without a valid reason can lead to traffic violations and increase the risk of accidents.
- Only to turn into a driveway: This is incorrect as well because crossing a solid white line to turn into a driveway is not a typical reason that justifies this action. If you need to turn into a driveway, it’s generally expected that drivers do so only when there is a safe opportunity, not necessarily when there is a solid line in place.
- Only to make a U-turn: This option is also incorrect because making a U-turn is generally not a reason for crossing a solid white line. U-turns are more often associated with intersections, not crossing lines on a highway unless there is a designated turn area where it’s permitted.
In summary, the only time a driver can cross a single solid white line is when traffic conditions necessitate it, such as to avoid an accident, merge for traffic flow, or avoid an obstruction.