Originally Posted by
V8Ian
As John said, old school was always a single blink, but some younger blokes (or blokettes) confuse the issue with more than one.
Caution, some drivers use the left blinker to indicate clear to pass. I can see the logic, but in Queensland, NT and WA it was always the right. I use either signal as "I know you're there and will facilitate your overtaking manoeuvre". I always rely on my own judgment, the other driver doesn't know the power, acceleration or weight of my vehicle.
When being approached from behind, by a faster vehicle, I use a single right blink to indicate "come past", while simultaneously moving as far left as possible, to give the other driver the best view possible. This also conveys the message that I am aware and cooperative.
I also will give a single left blink, to indicate that it's not safe to pass.
Usually drivers who don't understand the highway aldis language will pick it up, after three or four oncoming vehicles, or maybe that's the patience threshold. [bighmmm]