What does a solid yellow line next to a broken yellow line indicate?

A solid yellow line next to a broken yellow line indicates that passing is permitted only on the side with the broken line. The solid line serves as a restriction for the side where it is present, meaning that drivers on that side cannot legally pass. Conversely, the broken line indicates that drivers on that side are allowed to pass when it is safe to do so. This configuration helps maintain safety on roads by clearly delineating where overtaking other vehicles is permitted, ensuring that drivers are aware of their passing ability based on their position relative to the lines. Understanding this road marking is crucial for safe driving practices and compliance with traffic regulations.