What does a broken white line indicate when two or more lanes of travel are permitted in the same direction?

A broken white line serves a specific purpose in traffic management, particularly in scenarios where multiple lanes are designated for vehicles traveling in the same direction. This type of line indicates that the lanes are divided, allowing drivers to use either lane based on their intended path or preference.

When a broken white line is present, it also means that lane changes may be made freely, provided that it is safe to do so. This option accurately reflects the function of the line in promoting fluid traffic flow and permitting drivers to switch lanes when necessary.

In contrast to the other options: a solid line would separate oncoming traffic or mark no-passing zones, neither of which are characteristics of a broken white line. Therefore, recognizing the function of a broken white line as a divider for lanes of travel in the same direction is crucial for safe and efficient driving.