What does a double yellow line indicate on the road?

A double yellow line on the road indicates that no passing is allowed in either direction. This road marking serves as a clear visual cue to drivers that they should not change lanes or attempt to overtake other vehicles across those lines. The rule is designed to enhance safety, particularly in areas where visibility is limited or where the road may have dangerous turns or intersections. It ensures that all vehicles maintain their position in their respective lanes, preventing potential accidents that could occur from unsafe passing maneuvers.

Other choices do not accurately reflect the meaning of a double yellow line. For instance, passing is certainly not allowed in either direction, which invalidates any options that suggest some form of permissible passing or other actions like turning or allowing only trucks to pass.