Okay, great. So you replace the Univac's with a bunch of up-to-date computers. You still have the issue of funneling aircraft to land on the pavement provided. You can get as many aircraft in the sky as you want, but it'll still take at least one minute between the one aircraft who crosses 50' above the threshold for landing and the next aircraft to depart the same piece of pavement. Provide more well suited runways and you'll increase the number of operations. NIMBY soon rears its head.
While I somewhat agree with centralizing ATC helping with the budget, it doesn't necessarily help with the redundancy. I also think that congress has created it's own monster with the FAA by giving certain mandates to the agency while financially hamstringing the execution of such mandates.
stlflyguy
Again, pavement is not the primary problem, although it would certainly help. Inefficient enroute structures cost the airlines tons of money in wasted fuel (wasted on routes, wasted in holds, etc.).
Again, MONEY is DEFINITELY not the problem . . . airlines and passengers have been paying fees for decades to fund this, and there's little to show for it.
Having 16 area centers makes no sense, surely you'd agree? Even having 1 primary and 3 "backup" would be enough, wouldn't you agree? Even that is ridiculous overkill.
Tip of the iceburg, really. What about an ATC system that is primarily driven by computer software commands to data-linked aircraft . . especially for en-route traffic? Think of the money and efficiency that could be achieved! This one-person-on-the-radio at a time is antiquated beyond belief!
Separation standards need to be reviewed as well (especially if the above suggestion takes hold). While the US was scared to death about reducing separation from 4000 ft to 1000ft (RVSM), Europe had been doing it for years!
ATC in the US is a joke . . . or would be, if it weren't the US Taxpayer, Airlines, and the flying public who weren't getting raped to pay for it. The GAO has said as much on an annual basis for the past 2 decades.
None of this is likely to change. In addition to huge bureaucratic inertia inherent to large federal government agencies, the ATC system is like AMTRAK . . every politician wants to get a piece of it in his back yard. Controllers are heavily unionized and fight change at all costs, except for changing pay rates ever upward (as a good union should).