What does a solid yellow line indicate?

A solid yellow line indicates that no passing is allowed. This marking is used to signal drivers that the lane is not safe for overtaking another vehicle. It highlights areas where visibility is limited or where making a passing maneuver could be hazardous. Typically, these stripes are found on roadways where the potential for conflict is higher, such as on curves, hills, or sections with heavy pedestrian activity.

Understanding this marking is crucial for maintaining road safety and adhering to traffic laws, as attempting to pass in such areas can lead to serious accidents. On the other hand, the other options describe situations that do not apply to the meaning of a solid yellow line; for example, passing is actually prohibited, and thus these road markings do not support scenarios where overtaking is present or indicate other types of warnings or regulations.