What does a solid yellow line on the road signify?

A solid yellow line on the road signifies that passing is prohibited in both directions. This marking is used to alert drivers that it is unsafe to overtake the vehicle in front of them, indicating that visibility or circumstances do not allow for safe passing. The presence of a solid yellow line is intended to enhance safety by preventing dangerous maneuvers that could lead to accidents.

For example, areas with solid yellow lines are often found near intersections, curves, or other locations where visibility is limited. It serves as an important visual cue for drivers to remain in their lane and not attempt to pass another vehicle, thereby reducing the risk of collisions.