What does it indicate when the yellow lights come on during a standing start?

When the yellow lights illuminate during a standing start, it signifies that the start of the race has been delayed. This typically alerts drivers and teams to remain vigilant, as there may be unforeseen circumstances that have affected the planned start time, such as track conditions, safety concerns, or other logistical issues. The yellow lights serve as a warning that drivers should not proceed because the start will not commence until further instructions are provided, often through the eventual change to a green light. Understanding this signals the importance of being prepared and ensuring that all participants are aware that the race is not yet underway.

It's crucial for participants to be aware of this signal because it emphasizes the need for caution and readiness before the race begins. In a competitive environment, knowing the significance of these indicators helps maintain safety and clarity for all involved.