It is 100km/h, yes. For doing 150km/h (93mph) you can get an instant roadside impounding of your vehicle, loss of licence and $10,000 (£5,000)fine.
How oten it happen, I don't know, but there are big signs on the highway reminding you every now and then. There are also signs that say "aircraft patrolled" in lots of places, but not many speed cameras - mostly just red light cameras.
Some bloke got caught here the other day doing 219km/h (136mph) in a 90km/h (55mph) zone. His car got impounded for a week, but apparently he's kept his licence until the court case in September. Mind you, he's facing his car being scrapped and dangerous driving charges when it does get to court.
"aircraft patrolled" ??? ffs, that must be cost effective (not)
Given that there are long stretches of highway with nothing around (i mean hundreds of km), aircraft is probably more cost effective.
They have a similar approach in Australia.
if there are 100s of km with no-one else around why does it matter if someone is speeding?
and, by cost effective, I was wondering about the cost of maintaining the aircraft, pilot etc against the revenue it generates
What's with the name and folder change? :S