F1 Explained: What is a red flag?

The article explains the significance of red flags in Formula 1, which indicate an immediate stop to racing activities. The impact of a red flag varies between practice sessions and qualifying, with the clock continuing to run during practice but potentially ending qualifying early if time runs out after a red flag is thrown.

When a red flag is deployed, race control instructs marshals to display the flags, requiring drivers to slow down and return to the pits. This allows teams to make necessary repairs and changes. The duration of the stoppage can vary, and once resolved, races can restart either with a standing or rolling start depending on the conditions.