Click on the colour combination you are seeing to view an explanation of possible meanings...
No Lights
Flashing Yellow
Steady Yellow
Steady Red
Steady Red + Flashing Yellow
Steady Red + Steady Yellow
Flashing Red
Flashing Red + Flashing Yellow
Flashing Red + Steady Yellow
Steady Green
Steady Green + Flashing Yellow
Steady Green + Steady Yellow
Flashing Green
Flashing Green + Flashing Yellow
Flashing Green + Steady Yellow
Steady Blue
Steady Blue + Flashing Yellow
Steady Blue + Steady Yellow
Flashing Blue
Flashing Blue + Flashing Yellow
Flashing Blue + Steady Yellow
Steady Light Blue
Steady Light Blue + Flashing Yellow
Steady Light Blue + Steady Yellow
Flashing Light Blue
Flashing Light Blue + Flashing Yellow
Flashing Light Blue + Steady Yellow
