W3C-validity not checked.

In auto racing, this flag always signals a caution condition. When waved from the start tower, it places the entire circuit under a caution condition and signals a pace car to enter the circuit to control the field, while when waved from a marshal post, it signals the beginning of a hazardous section of track. A speed limit is imposed, and no passing under any other circumstance may occur during a yellow-flag condition.

Diese Abbildung einfacher Geometrie ist gemeinfrei („public domain“), weil sie ausschließlich Allgemeingut enthält und die nötige Schöpfungshöhe nicht erreicht.