What does a solid white line down the center of the road indicate?

A solid white line down the center of the road indicates that overtaking is prohibited. This means drivers should not cross this line to pass another vehicle, as doing so may create a dangerous situation. The purpose of this marking is to ensure safety by preventing maneuvers that could lead to head-on collisions, especially in areas where visibility may be limited or where there are other hazards. It is crucial for drivers to adhere to this rule to maintain safe driving conditions for all road users.