What does a solid yellow line on your side of the road indicate?

A solid yellow line on your side of the road signals that no passing is allowed. This marking indicates that there are conditions ahead that make passing unsafe, such as curves, hills, or limited visibility. Drivers are expected to stay in their lane and not cross over into the opposite lane to overtake another vehicle. This traffic control measure is crucial for maintaining safety on the roads, as it helps prevent accidents that could occur from erroneous overtaking in situations where visibility is compromised.

The other options relate to different traffic regulations. Passing with caution would be indicated by a dashed line, while double lanes for turning are usually marked differently, such as with arrows or different lane configurations. Speed limit changes are conveyed through specific signage, not road markings like solid yellow lines.