What does a white dashed line signify?

A white dashed line on the road signifies that lane changes are permitted. This line indicates that drivers can safely change lanes given that it is clear to do so. It allows for flexibility in traffic flow, enabling vehicles to overtake or merge when necessary.

In practice, this means that if you find yourself in a lane marked by a white dashed line, you can maneuver your vehicle into an adjacent lane when it is safe. This is particularly important for maintaining traffic flow and ensuring that vehicles can adjust their positions in response to road conditions or driver decisions.

The other options refer to specific situations that do not apply to a white dashed line. For example, an end of a lane would typically be marked by a solid line rather than dashed. A no-passing zone is marked by a solid line or appropriate signage to indicate restrictions, while a start of a restricted area would also have solid lines or signage indicating the limitations in that section. Therefore, understanding that the white dashed line allows lane changes is essential for safe driving and compliance with road rules.