Meaning of the Indianapolis 500 flags?

The flags at the Indianapolis 500 each have specific meanings that communicate important information to drivers and teams. The green flag signifies the start of the race or the resumption after a caution period. A yellow flag indicates caution on the track, while a red flag means the race is stopped, usually due to an accident or hazardous conditions. Other flags, like the checkered flag, signal the end of the race, while the blue flag with a yellow stripe warns slower cars that faster cars are approaching.