can we just go back to this bit for a sec.
I’ve been told many times that the airspace between Melbourne and Brisbane is as busy as any airspace in the USA. In that case, I can’t see why the sector sizes are dramatically different to the U.S
It is not, Dick. Hence, the remainder of your post is incorrect.
Some of the city-pairs are quite busy eg. Melb/SY, SY/Bris, but that's it. The US has many more city-pairs in the same volume of airspace. A common misunderstanding, and an excellent demonstration of how statistics can be used to baffle the uninformed.
That seems to be a pretty straight forward response to an incorrect and misunderstood situation. Sector sizes, and associated screen scales, is critical - as people (who do the job every day) have said over and over again - to an understanding of some of the problems.
A simple "I was wrong about that" would be nice!
