What do white lane lines indicate?

Answer: B — Separate lanes of traffic moving in the same direction

White lane lines on roadways are used to separate lanes of traffic that are moving in the same direction. This is essential for maintaining organized traffic flow and ensuring that drivers stay within their designated lanes. White lines provide a visual guide that helps drivers understand where they should position their vehicles, reducing the risk of collisions and promoting safer driving conditions. In contrast, different colored lines serve different purposes. For example, yellow lines indicate lanes of traffic moving in opposite directions, and solid stop lines mark where vehicles must stop at intersections. Understanding the significance of lane markings contributes to safer navigation on the roads.