A SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. More AspectAny valid visual indication of a Signal as displayed to the driver. More which informs the driver to expect the next SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. More to be at
Caution. It is indicated by a Double YellowA Preliminary Caution displayed by a Colour Light Signal in Four Aspect Signalling informing the driver to expect the next Main Signal to be at Single Yellow More AspectAny valid visual indication of a Signal as displayed to the driver. More.