Whilst driving your kart at speeds of up to 100mph it’s difficult to communicate with official’s trackside.                                                                                                                                                           Just imagine driving past a marshal post at 50mph with your crash helmet on and an engine less than 60cm from your ear revving at say - 14000 rpm.                                                                                 It’s also most likely that you’re not alone and have several other competitors within close proximity.                                                                                                                                                                It would be extremely difficult  to hear a marshal shout at the top of their voice any information warning you of hazards or command for attention and potentially most dangerous.                           It’s for this reason we quite simply communicate by means of flags. Flag marshals are appointed to display flag signals to competitors.                                                                                                       Penalties can be applied to any driver not complying with flag signals, so its in your own interest and safety you should familiarize yourself with them.  

Yellow / Black Quartered

This flag may be introduced by the Clerk of the Course following a report from an observer. The flag will first be displayed at the start / finish line and then in track wise order at all flag posts. On passing the flag at the start / finish line the race leader must slow down to a rolling start pace. All competing karts must line up in single file behind the race leader  who will act as the pace setter. No overtaking permitted.                                                                                                                        The field will remain in close formation at reduced speed for as long as it takes to clear the obstruction or remove the hazard. Competitors who fail to slow down sufficiently or who overtake under the yellow / black flag may be excluded or otherwise penalised.                                                                                                   When the Clerk of the Course is satisfied that the track is clear or the problem resolved the race will be resumed by a green flag at the start / finish line and the simultaneous withdrawal of all yellow / black flags around the circuit.