What does a double white line signify?

A double white line signifies that traffic is moving in the same direction but passing is not allowed. This marking is utilized to indicate a restriction for drivers, emphasizing safety by preventing lane changes that could lead to dangerous situations, especially in areas like high-traffic zones or near intersections. The presence of double white lines helps maintain order in traffic flow and reduces the risk of collisions by keeping vehicles in their designated lanes. This clear visual instruction is designed to promote safe driving practices.