Warning vehicles on a racetrack audibly or visually about incidents which require action via receivers in the vehicles

摘要

The invention relates to an improved method of communication to a rider or driver of a track or road racing vehicle that an incident has occurred and urgent action must be taken. There may be one or more transmitters which send signals to receivers mounted in the competing machines and the driver or rider is warned via a visual or audible indicator. The transmitters and receivers may be arranged in conjunction with onboard transponders to allow warnings appropriate to the sector of the track which they are in.