It means that you are about to be lapped and need to let the faster car overtake. If a driver fails to let the car pass after three blue flags he is likely to be penalized.
They are also shown at the end of the pitlane if a car is approaching on the track, so that the driver exiting the pits knows to be careful.
It informs a driver that a faster car or cars are approaching and the driver should allow those cars to pass.
Basically, let the faster cars by. This one is optional to a degree.
It means that there are faster cars approaching during the race. Lapped cars should give way to the faster cars.
There has been a crash and to slow down.
The colors of the Swedish flag are blue and yellow.
There is no yellow and blue. It is red and white. The yellow and blue flag is from Sweden
Sweden. It is a blue flag with a yellow cross.
the colours of the swedish flag is blue and yellow
pallou Palau has a blue flag with a yellow circle.
Red, Green, Blue, Yellow and Black rings on a white field.
Kazakhstan has blue flag with yellow sun: http://en.wikipedia.org/wiki/Flag_of_Kazakhstan
In Nascar, the blue flag with a yellow stripe is shown to slower drivers on the track to let them know that faster cars are approaching. It's telling them that they should move out of the way.
the flag is blue and yellow. the christian cross is in yellow .
Several countries have a blue, yellow, red, and white flag:KiribatiCape VerdeMalaysiaPhilippinesSerbiaSloveniaTuvaluIn addition, the Buddhist flag is blue, yellow, red, and white.
It is blue red and yellow.
The Romanian flag is red, yellow and blue.