What does a dashed white line mean on the road?

A dashed white line on the road indicates that lane changes are permissible, as long as it is safe to do so. This type of line serves as a guide for drivers, indicating that they are in a lane where they can legally shift to another lane for passing or merging. It allows for flexibility and movement within the same direction of traffic.

In this context, the other choices do not accurately reflect the meaning of a dashed white line. A solid line would suggest stopping or no-lane changes, while a no-passing zone would typically be indicated by a solid yellow line on the left side. A pedestrian crossing would more commonly be indicated by specific signs or markings designed to alert drivers to the need to yield to pedestrians. Thus, the presence of a dashed white line clearly tells motorists that they have the option to change lanes if conditions permit.