What is the recommended action if you encounter a stop sign at an intersection during heavy fog?

When you encounter a stop sign at an intersection during heavy fog, the recommended action is to come to a full stop and look carefully. This approach is essential for several reasons. First, heavy fog significantly reduces visibility, making it difficult to see oncoming traffic, pedestrians, or other obstacles that may be present. By coming to a complete stop, you give yourself the opportunity to assess the situation thoroughly and ensure it is safe to proceed.

Stopping allows you to listen for sounds that might indicate the presence of other vehicles or emergency vehicles that are difficult to see in foggy conditions. Additionally, this action aligns with the rules of the road, which dictate that drivers must adhere to posted stop signs regardless of circumstances. Therefore, taking the time to stop and check your surroundings is crucial for safety in low-visibility environments.