What does a double solid yellow line indicate?

A double solid yellow line serves as a clear traffic control device indicating that passing is not permitted in either direction. This means that vehicles traveling in either lane are prohibited from crossing the lines to overtake another vehicle. The purpose of this rule is to enhance road safety, especially in situations where visibility is limited or where passing could be dangerous, such as on curves or at intersections.

The presence of double solid yellow lines emphasizes to drivers the importance of staying in their respective lanes and discourages maneuvers that could lead to collisions. It's particularly critical for preserving safety on multi-lane roads, where the potential for accidents is heightened when vehicles attempt to pass without a clear view of oncoming traffic. Understanding this rule helps drivers make informed decisions while on the road, thereby reducing the risk of accidents.