What does a solid line mean on the road?

A solid line on the road indicates that no passing is allowed. This type of line is used to signify that the area is not safe for vehicles to overtake one another, typically due to road conditions, visibility issues, or the presence of oncoming traffic. The solid line serves as a visual cue for drivers to stay in their lane and not attempt to pass, ensuring both the safety of the drivers and the passengers.

In contrast, dashed or broken lines are often used in areas where passing is permitted, creating a visual indication that it might be safe to do so under certain conditions. Understanding the meaning of road markings, like solid lines, is crucial for maintaining road safety and adhering to traffic regulations.