The driver of a public bus who stops for B lights showing a red or yellow B light must not proceed until—
(a) a white B light is showing; or
(b) no B light is showing and traffic lights at or near the B lights are showing a green traffic light.
Penalty: 10 penalty units.
"Green traffic light", red B light , traffic lights , white B light and yellow B light are defined in the dictionary. A diagram of a white B light is shown in rule 285.