What does a double solid yellow line indicate on the road?

A double solid yellow line on the road signifies that no passing is allowed in either direction. This is a critical safety feature intended to prevent vehicles from crossing the line to overtake other vehicles, typically in areas where visibility is limited or where passing would be dangerous, such as on hills or curves. It serves as a clear warning to drivers that attempting to pass could lead to collisions or other hazardous situations.

The other options do not accurately represent the meaning of a double solid yellow line. For instance, the indication of passing being allowed to the left contradicts the established rule associated with the double solid yellow line. A bike lane typically has different markings, such as a bike symbol or a solid green line, and parking prohibitions are usually indicated by signs or other specific markings rather than double yellow lines. Understanding this road marking is essential for safe driving and compliance with traffic laws.