What does a white line on the road signify?

A white line on the road is primarily used to separate lanes of traffic that are moving in the same direction. This helps drivers maintain their lanes while still allowing them to change lanes when it is safe to do so. The visibility of white lines is crucial for lane discipline and overall traffic safety, ensuring that vehicles can navigate the roadway effectively and without confusion.

While there are other types of markings and signs on the road that serve different purposes, such as stop lines or lane-ending markings, these do not apply specifically to the function of white lines in lane separation. The presence of a white line can guide drivers in their movement and contribute to smoother traffic flow.