When is it unsafe to pass another vehicle?

Passing another vehicle is particularly unsafe when your vision is obstructed. Visibility is crucial for making informed and safe driving decisions. When your view is blocked by obstacles, such as other vehicles, hills, or curves, you cannot accurately assess if the road ahead is clear or if it is safe to proceed. This lack of visibility increases the risk of colliding with oncoming traffic or encountering unexpected hazards. It is essential to only pass when you have a clear sight line to ensure you can see any potential dangers, allowing you to make safer maneuvers.

While clear roads, driving below the speed limit, and daytime hours may generally contribute to safer driving conditions, they do not guarantee safety when passing. For example, being below the speed limit does not enhance safety if visibility is compromised. Therefore, the condition of having obstructed vision is a critical factor in determining the safety of passing another vehicle.