What does a double solid white line signify?

A double solid white line signifies that the separation between traffic lanes is intended to prevent changing lanes or crossing over. This marking is found primarily in situations where lane changes could lead to unsafe conditions, such as on highways or in areas with heavy traffic.

Drivers are required to remain in their lanes when these lines are present, as they indicate that crossing is prohibited. This helps maintain the flow of traffic and enhances safety by reducing the likelihood of accidents caused by erratic lane changes. Understanding this traffic marking is crucial for safe driving practices, ensuring that drivers adhere to the rules of the road to promote safety for all.