What does a broken white line on the highway signify?

A broken white line on the highway signifies the separation of two lanes traveling in the same direction. This marking allows for lane changes and encourages drivers to proceed with caution when moving from one lane to another. The presence of the broken line indicates that it is permissible to change lanes, provided it is safe to do so and no oncoming traffic is affected. Understanding this can help drivers make safer decisions on the road, as it also emphasizes the importance of being aware of surroundings and other vehicles when performing lane changes.

In contrast, solid lines, whether white or yellow, typically signal that lane changes are not permitted, and other markings have different meanings, such as indicating no-passing zones or different types of traffic flows.