What does a double solid white line indicate?

• A. Lane changes are permitted
• B. Only one lane is available
• C. No lane changes are permitted
• D. It is a passing zone

Answer: (C)

A double solid white line indicates that no lane changes are permitted. This marking is used to discourage drivers from changing lanes, typically because doing so may create a dangerous situation, such as near intersections, sharp curves, or areas with heavy pedestrian traffic. The presence of two solid white lines reinforces the message that drivers should remain in their current lane and not switch to another. This regulation helps maintain consistent traffic flow and enhances safety by reducing the likelihood of collisions caused by unexpected lane changes.

The other options do not reflect the meaning of a double solid white line. Lane changes are actively prohibited in these areas, which is crucial for ensuring safe driving conditions.