What does a solid yellow line indicate?

A solid yellow line indicates that no passing is allowed. This is a crucial road marking that serves to enhance safety by informing drivers that they should not cross the line to overtake another vehicle. The presence of a solid yellow line generally signifies that the road ahead may have conditions that make passing hazardous, such as curves, hills, or other restrictions.

In contrast, lanes that can be crossed are typically marked with broken yellow lines. A bike lane is often indicated by designated markings and may be a solid green or another color. Reversible lanes are indicated by special signs and paint patterns that allow for bidirectional traffic flow depending on the time of day. Understanding these markings helps ensure safe driving practices and compliance with traffic regulations.