What do double solid lines separating lanes of traffic indicate?

Double solid lines separating lanes of traffic clearly indicate that lane changes are prohibited. This means drivers are not allowed to cross these lines for purposes such as overtaking another vehicle or moving into another lane. The purpose of these lines is to enhance safety by preventing maneuvers that could lead to accidents, especially in areas where visibility might be limited or where lane changes could interfere with the flow of traffic.

The presence of double solid lines signals to drivers that sticking to their current lane is essential for maintaining order on the road and reducing the risk of collisions. This rule is part of traffic regulations designed to promote safe driving practices.