What does a solid yellow line indicate?

A solid yellow line indicates that no passing is allowed. This marking is used to signal drivers that it is unsafe to overtake another vehicle in that area. The purpose of a solid yellow line is to help maintain safety on the road, especially in situations where visibility is limited or the opposing traffic is nearby. It typically appears on roads where the potential for accidents is higher when passing, such as on curves or near intersections.

In contrast, a broken yellow line would indicate that passing is permissible when it is safe to do so. Awareness of these line markings is crucial for maintaining safe driving practices and making informed decisions while on the road. Other options like merge ahead or road construction ahead are indicated by different signage or markings, which do not confuse the passing rules indicated by the solid yellow lines.