U.S. Air Traffic Control: The Moral Equivalent of Semaphores and Signal Fires
Ronald Bailey | August 28, 2008, 11:20am
Adventure is back in air travel as 60,000 passengers on 600 cancelled flights found out, when the Federal Aviation Administration's (FAA) medieval air traffic control (ATC) system crashed earlier this week.

According to Reason Foundation transportation maven Robert Poole, the problem is that the U.S. ATC system is a step up from semaphores and signal fires, but not by all that much. Poole explains:
Today’s ATC system is built on a 1950s paradigm or concept of operations. Because it is so imprecise, it must create huge buffer space around each plane, wasting valuable airspace. All communications between ATC and planes go by voice—on frequencies that are jammed and relaying numbers that can be mis-heard. It is hugely labor-intensive, when software could accomplish many routine tasks in keeping planes safely separated.
Go here for some excellent Reason Foundation proposals on how to finally bring America's ATC system into the 21st century.
jasa | August 28, 2008, 3:55pm | #
Mr Brown, if you are the former columnist from Avweb, I always enjoyed your column. Cool that you lurk around here.
I'm guessing the title of this blog wasn't written by a pilot. I won't dignify it by explaining why it's stupid.
"Any pilots in this crowd? "
Yup, I'm a pilot. (Say that like the drunk dude in Independence Day.)
Mid-airs? Well, they tend to happen where it gets crowded, like around an airport. Someone mis-tunes the traffic freq., or mis-hears a tower command, coupled with a lack of vigilance using the old eyeballs, and boom, shit happens. It's very, very rare, however. Even more so when in positive control airspace (class C or class B). Your typical pilot, when not on a jihad, just don't like dying.
Solutions to the current capacity problem? This is a pretty complicated subject. ADS-B could be part of the solution. This technology uses GPS to encode a given aircrafts position in a digital transmission to ATC. All aircraft within 100 miles equipped with ADS-B will then receive this transmission and know where the other traffic is. Everyone gets to see the real time big picture, not just the radar jockeys on the ground. In theory, this will allow more precise spacing and faster traffic flow.
What ADS-B won't solve:
Slots at the terminal. There are only so many berths available at a given time.
Airlines preference for the current hub and spoke system. It's cheaper for them, but less efficient for passengers. Pick one, fast or cheap.
Additionally, most airports have superb radar coverage and controllers. Having everyone see the big picture is not likely to double the landing rate.