What does a solid yellow line on the road indicate?

A solid yellow line on the road indicates that passing is prohibited. This marking signifies that the lane is intended for traffic traveling in one direction and that overtaking or passing vehicles is not allowed due to potential hazards, such as curves, intersections, or limited visibility. Drivers should remain in their lanes and exercise caution when approaching areas marked with a solid yellow line, as it serves to enhance road safety by preventing potentially dangerous maneuvers.

The other choices represent different roadway markings or meanings that do not apply to solid yellow lines. For example, passing is usually indicated by a broken yellow line, while bike lanes are designated by specific symbols and markings. Warnings to slow down are generally indicated by different types of signs or markings, not solid lines.