What does a double yellow line mean?

A double yellow line indicates that no passing is allowed. This marking serves as a clear signal to drivers that they must not cross these lines to overtake another vehicle. It is typically used on highways or roads where visibility is limited or where it is unsafe to pass due to concerns about oncoming traffic. The intent behind this regulation is to enhance safety by reducing the risk of collisions that could occur when drivers attempt to pass in potentially hazardous conditions. Understanding this traffic marking helps drivers make safer decisions on the road, ensuring that they adhere to the rules that aid in maintaining orderly and secure traffic flow.