In which situation is it advisable to increase following distance?

Increasing following distance is especially advisable in adverse weather conditions. When the weather is poor—such as during rain, snow, fog, or ice—road traction can be significantly reduced, which can impact your vehicle's ability to stop quickly and safely. By maintaining a greater distance from the vehicle in front of you, you provide yourself with more time to react in case of sudden stops or emergencies, thereby reducing the risk of a collision.

In sunny weather, visibility is typically good, and road conditions are more stable, so there is often less need to increase following distance. While following a truck may require additional attention due to the truck's size and blind spots, it isn't necessarily a situation where you are advised to increase following distance just for that reason alone. Similarly, when driving a car with great acceleration, the distance may not need to be adjusted if the driving conditions are stable. However, in adverse weather, the risks are heightened, making it critical to adjust following distances for safety.