What does a solid yellow line in the center of the roadway indicate?

A solid yellow line in the center of the roadway indicates that passing is prohibited. This line serves as a clear visual signal to drivers that they should not cross into the opposite lane to overtake another vehicle. The purpose of this traffic marking is to enhance safety, particularly in areas where visibility is limited or where it may be dangerous to pass, such as curves, hills, or other road conditions where oncoming traffic cannot be seen.

In areas with a solid yellow line, drivers are expected to remain in their lane, ensuring not only their own safety but also that of other road users. This regulation is crucial in maintaining orderly flow and preventing accidents. It is essential for drivers to understand and respect these markings to promote safe driving practices on the road.