Which condition may require observing increased following distance?

Increased following distance is essential in adverse weather conditions, such as rain or icy roads. When the road surface is slippery, vehicles may require more time and distance to come to a stop safely. The interaction between tires and the road surface is compromised in these conditions, increasing the likelihood of skidding or losing control.

By maintaining a greater following distance during rain or icy conditions, drivers allow themselves more reaction time to respond to sudden stops or emergencies. This practice enhances safety not only for the driver but also for other road users. In contrast, clear weather, heavy traffic, or daytime driving do not inherently necessitate the same level of extended following distance, as traction is typically better and the likelihood of sudden stops is lower.