Capn Bloggs, the operators putting in ADSB is not going to help much yet - we still have to procedurally separate ADSB tracks as can't use the 'radar' standard of 5nm. This is all going to be fixed though we keep getting assured. BTW, wasn't the next stage of ADSB implementation supposed to have occurred last June??????
Also, ADSB isn't going to help with flowing as the TCU does not have an ADSB feed so the flow is still going to have to wait for the aircraft to paint on radar before he can do his funky thing. If you want better flow outcomes, we need to have a radar somewhere north like MOG or MEK, north-east (maybe LEO but that might be too far) and east (east of ESP) - then the flow can see you all coming in from 250-300 miles out and provide a better service. Better be prepared to pay though - each one will probably cost over $15 million to install!
Ultimately, there are two reasons that those of us doing the airspace around PH have so many problems. They are Pearce and PH airport.
If we could get PEA to disappear (or even 'tilt' further out over the ocean), we would have a much more efficient airspace structure that would allow us to move more aircraft. The new airspace coming in June will help but it is still going to be very congested in certain parts (particularly to the immediate north of PH). Get rid of PEA and a route structure like that of SY becomes possible - segregated jet and prop routes inbound and outbound with feeder fixes on the inbounds - ah! the joy!
Secondly, PH airport - build more infrastructure there (parallel runways would be a great start!) and we can move more traffic - one follows the other surely as night follows day. However, rumour has it that at a recent RAPAC meeting, all the operators said to Westralia Airports, charge us more and build 03R/21L so the controllers can move more traffic. Response was, yep sounds great but that land is reserved - we can make more money out of a DFO and so are going to build a shopping centre there. HUH??????!!!!! This is from a company that has leased land for AVIATION and is not using it for AVIATION purposes - surely (if true) the federal government has a duty to step in and say 'get real you idjits - build the bloody runway!' Not holding my breath though.
Put these two things together and you have the present situation. We hate dealing with it as much as you guys but there is only so much we can do. Add to that staff shortages on our end (both enroute and in PH) and it makes life even more interesting!