What does a solid yellow line indicate?

A solid yellow line is used to indicate that passing is not allowed in that area. This line serves as a warning to drivers that they should not attempt to overtake the vehicle in front of them because it may be dangerous or illegal to do so. The presence of this line typically indicates a location where visibility is limited or where road conditions require careful driving, thus emphasizing the importance of adhering to this rule for safety on the road. Understanding this traffic marking helps ensure safer driving practices and compliance with the law.