What does a solid yellow line beside a broken yellow line indicate?

A solid yellow line next to a broken yellow line indicates that passing is permitted only on the side where the broken line is present. This is because the broken line indicates that it is safe for the driver on that side to pass, while the solid line means that the driver on the other side must remain in their lane and cannot pass.

This marking serves as a safety measure to regulate traffic and prevent dangerous situations that could arise from unauthorized passing. Knowing how to interpret these lines is crucial for drivers to understand their rights and responsibilities on the road, ensuring a smoother and safer driving experience.