I remember what old Bjelke Joh said about it way back when radar's were first being introduced - late '70s?
He reckoned that 1 cop cruising up & down the Highway on a bike slowed down more cars than 1000 radar's ever would, & he was right!
There was a motorbike copper who did the morning peak hour shift on the motorway around Burpengary to Pine Rivers bridge about 8 years ago.
He was awesome at keeping everything flowing.
He'd zip through and make the idiot in the right hand lane get out of the way and stop holding everyone up. Then he would tuck in line line and wait for the other idiot that wanted to go flying through 20ks faster then everyone else. He'd pop out behind them and make them pull into the slow lane. Not pull over, just into the slow lane, I always took it like a yellow card when I saw him do it (once to me I have to admit).
There was so many mornings that I recon that guy was almost solely responsible for keeping that whole highway moving.
Today it's just an in conspicuous black van parked on the side of the road and job done apparently.