What do dotted white lines typically represent?

Dotted white lines primarily indicate lane usage and are often used to separate lanes of traffic that are moving in the same direction. In the context of this question, they are specifically used to show exit or extension lanes. These lines allow drivers to change lanes safely and signal that they can move to another lane, such as for merging onto an exit or extending into another lane for passing.

This is significant because it provides guidance and increases the overall safety of the roadway by clearly delineating where vehicles can move. Understanding the meaning of these markings is crucial for any driver in ensuring they navigate roadways effectively and adhere to traffic regulations. In contrast, the other options refer to different road markings or purposes that do not relate to the function of dotted white lines. For instance, pedestrian crossings are typically marked with solid white lines or specific symbols, and parking areas are often designated by solid lines or painted indications that are distinct from dotted lines.