What does a double solid yellow line signify?

A double solid yellow line indicates that no passing is allowed in either direction. This marking is used on the road to communicate to drivers that the roadway is not safe for overtaking another vehicle, usually due to visibility issues or traffic conditions. The use of double solid lines emphasizes the strict prohibition against passing, ensuring that drivers understand the importance of adhering to this rule for their safety and that of others on the road. It serves as a clear visual cue that helps prevent accidents in areas where passing can lead to dangerous situations.