What do parallel white lines on the pavement represent?

Parallel white lines on the pavement primarily serve to separate lanes of traffic that are moving in the same direction. This helps organize the flow of vehicles, ensuring that each lane is designated for a specific path of travel. By clearly marking these lanes, drivers can maintain order on the roadway, which is crucial for safety and efficient traffic movement.

While other options involve important road markings, they do not apply to parallel white lines specifically. Areas where parking is permitted are usually marked with different symbols or lines, and speed zones are typically indicated by signs rather than pavement markings. Similarly, the beginning of a school zone is communicated through signage rather than a line on the road. Thus, the primary function of parallel white lines is to manage and separate lanes for vehicles traveling in the same direction.