What do yellow lines on the road signify?

Yellow lines on the road are primarily used to indicate that traffic is moving in opposite directions. This is a crucial aspect of road markings, as yellow lines help drivers understand lane usage and ensure safe navigation on multi-lane roads. When you see a solid yellow line, it means that overtaking or passing is prohibited for vehicles traveling in the direction of that line, while a broken yellow line indicates that passing is allowed if it is safe to do so.

Understanding this concept is essential for ensuring safety on the road, as improper interpretation of road markings can lead to dangerous driving situations. The other choices pertain to different traffic situations. For instance, white lines generally denote lanes for traffic moving in the same direction, while parking areas are indicated by specific parking signs and markings rather than lines alone. Additionally, bicycle lanes usually have specific symbols or markings that denote them, rather than relying on yellow lines.