What do double solid yellow line markings in the center of the road signify?

Double solid yellow line markings indicate that passing is not allowed in either direction. This road marking is used to enhance safety by signaling to drivers that there are conditions present—such as curves, hills, or intersections—where it would be dangerous to attempt passing another vehicle. The presence of double solid lines emphasizes the importance of remaining in your lane and not overtaking vehicles, ensuring a safe driving environment for all road users. This rule is crucial for preventing accidents and maintaining traffic flow, particularly on roads with limited visibility or high traffic volumes.