What does a solid white line between lanes indicate?

A solid white line between lanes serves as an important traffic control marker. It indicates that drivers must stay in their lane and should not change lanes. This line is often used in areas where lane changes could be hazardous, such as near intersections or when merging. The intent of the solid white line is to promote safety by discouraging lane changes that could disrupt the flow of traffic or lead to collisions.

In contrast, dashed or broken lines allow for lane changes, while a solid white line reinforces the notion of maintaining lane discipline. This is crucial for maintaining orderly traffic flow and minimizing accidents. Thus, understanding the meaning of a solid white line is essential for any driver to uphold road safety regulations.