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Designing Tomorrow's Air Traffic Control Systems

aarondubrow writes According to FAA estimates, increasing congestion in the air transportation system of the United States, if unaddressed, will cost the American economy $22 billion annually in lost economic activity by 2022. MIT researcher Hamsa Balakrishnan and her team are making air traffic control systems more efficient through a combination of better models and new embedded technologies. Testing their algorithms at Logan Airport in Boston, they showed that by holding aircraft back for 4.5 minutes, they could improve flow on the runways and save nearly 100 pounds of fuel for each aircraft.

72 comments

  1. I have a suggestion... by Voyager529 · · Score: 4, Funny

    Make sure the tower doesn't have software written by a company that went out of business, but still managed to get an update that can bring the whole thing down, and employ versioning in your datacenter backups...but if that doesn't work, ensure that copies of the software are uploaded to the planes themselves so that, in the event there's a group of socially awkward geniuses that can drive a Ferrari down a landing strip, they can download the software via an Ethernet cable and save everyone.

    1. Re:I have a suggestion... by Voyager529 · · Score: 0

      (for those that didn't get the joke: http://collider.com/scorpion-p... )

    2. Re:I have a suggestion... by Anonymous Coward · · Score: 0

      Make sure to pop off the roof of the Ferrari BEFORE getting under way.

    3. Re:I have a suggestion... by Anonymous Coward · · Score: 0

      What no one has explained to me is why the plane could not just land on the runway in question. The premise was that the planes could not communicate with the tower, so everyone was in a holding pattern.

      Once they were able to communicate with the plane in question, why not just tell it to land so they could download the copy of the software while on the ground?

    4. Re:I have a suggestion... by Voyager529 · · Score: 1

      What no one has explained to me is why the plane could not just land on the runway in question. The premise was that the planes could not communicate with the tower, so everyone was in a holding pattern.

      Once they were able to communicate with the plane in question, why not just tell it to land so they could download the copy of the software while on the ground?

      The "Show Logic" was that the runway wasn't long enough for the plane to land without taking out a few blocks in the process.

      Why they didn't land at the airport with no ground control was what didn't make sense to me - They can communicate with the pilot and all the runways are clear, so why not just hand someone at LAX the phone, let 'em land, and do everything else via Remote Desktop?

    5. Re:I have a suggestion... by Anonymous Coward · · Score: 0

      Worrying about lost air traffic? Try doing away with the TSA beltless and shoeless checks, and the free feel-ups.

      Most people I know HATE flying now, some call it, "an abusive relationship." Lots of people started using cars or trains for trips, as a result, or take cruise ships instead.

      Add those REAL people not flying to the proposed future might not fly numbers, and it starts to look like real numbers.

    6. Re:I have a suggestion... by Anonymous Coward · · Score: 0

      Simple - because they couldn't get to LAX in time due to the traffic gridlock.

  2. PAYWALL link by zauberberg51 · · Score: 1

    anybody have a non-PAYWALL link to the Sciencedirect article?

    1. Re:PAYWALL link by Anonymous Coward · · Score: 0

      anybody have a non-PAYWALL link to the Sciencedirect article?

      You will receive your hyperlink in approx. 4.5 minutes. It's apparently part of the new software.

    2. Re:PAYWALL link by Mikkeles · · Score: 2
      --
      Great minds think alike; fools seldom differ.
  3. Not Air-Traffic, but Surface-Traffic Control by Anonymous Coward · · Score: 0

    This article is about Airport Surface Traffic Control, ie: having 20 planes lined up on the taxi-way to take off is not efficient. Instead, delay aircraft pushback from the gate so wait time on the taxiway is minimized (hence saving fuel).

    1. Re:Not Air-Traffic, but Surface-Traffic Control by Richy_T · · Score: 1

      That would seem fairly obvious. But I can say that as a passenger, I prefer to be away from the gate as soon as possible even if it means waiting in line and that may be why they do it.

    2. Re:Not Air-Traffic, but Surface-Traffic Control by Anonymous Coward · · Score: 0

      There's also the next flight that may be waiting to use the gate. It doesn't seem like you can randomly insert delays anywhere in the process and voila.

  4. what about by desdinova+216 · · Score: 4, Insightful

    building in some redundant backups so that what happened in Chicago last month doesn't happen again?

    1. Re:what about by BenSchuarmer · · Score: 1

      I was gonna say that. Maybe also track planes outside of national boundaries, so that we won't have situations like the Malaysian airliner that disappeared and we don't have any idea where to look for it.

    2. Re:what about by Anonymous Coward · · Score: 1

      I was gonna say that. Maybe also track planes outside of national boundaries, so that we won't have situations like the Malaysian airliner that disappeared and we don't have any idea where to look for it.

      Because having the US act as the worlds police force isn't good enough, we should also be the worlds air traffic control.

    3. Re:what about by Ksevio · · Score: 1

      The challenge with that is planes are currently tracked via old fashioned radar. Radar has a limited range and being based on the ground has issues with the Earth curving. The new system will use GPS sent via radio or satellite which will give it global coverage.

    4. Re:what about by Anonymous Coward · · Score: 0

      The new system will use GPS sent via radio or satellite which will give it global coverage.

      Uh, that's called 'ADS', and has been around for a long time. It doesn't help if it's turned off, as it was in the MH370 disappearance.

    5. Re:what about by devnullkac · · Score: 1

      They do have redundant backups: enough spare capacity exists in the other centers to carry the load the Chicago center dropped. Switchover to operations at alternate facilities was accomplished (and reversed) without incident. Yes, it took some time and there were substantial flight delays, but this is a once-in-a-great-while type of failure.

      Or are you talking about backups so expansive that in the event of a problem, no one need ever know anything ever happened, whether we're talking about the failure of a single chip or the destruction of an entire facility? I agree it could be done, but at what cost? As a taxpayer and occasional traveler, I'm satisfied with the level of redundancy they have now.

      --
      What do you mean they cut the power? How can they cut the power, man? They're animals!
    6. Re:what about by Anonymous Coward · · Score: 0

      building in some redundant backups so that what happened in Chicago last month doesn't happen again?

      It's hard to protect against deliberate sabotage.

    7. Re:what about by coldrestart · · Score: 1

      This is one of the great myths the FAA has done nothing to correct, since they love the idea that people think we're going to start using a space-based system to replace radar - it's cool and modern.

      ADS-B, the position reporting system that you're referring to that will supplement and eventually replace radar, does use GPS satellites to determine the aircraft's position. However, in the Continental US, that position information is sent via old-fashioned radios to land-based receivers.

      Those terrestrial receivers have the same distance and line of sight limitations that radar does. If you look at FAA ADS-B coverage maps for the U.S., although they're better than radar coverage, they have similar limitations (i.e. dead spots) at lower altitudes where terrain blocks the radio signals.

      http://ipadpilotnews.com/2012/08/understanding-ads-b-traffic/

      So although ADS-B uses GPS satellites, it still requires land-based receivers to get position information from the aircraft. ADS-B will only have global coverage if the radio receivers that pick up the aircraft ADS-B signals have widespread global coverage. And installing and maintaining all those receivers costs someone money...

      The real reason the FAA likes ADS-B is because they get to save the cost of running and maintaining their aging radar sites; not because ADS-B is so much better. ADS-B really just transfers much of the cost of getting aircraft positional information to the aircraft owners.

    8. Re:what about by Ksevio · · Score: 1

      That's true, but using ADS-C, it relay the information over a satellite connection.

  5. Purchase $35.95 Get a free air freshener... by fustakrakich · · Score: 1

    No thank you...

    --
    “He’s not deformed, he’s just drunk!”
  6. Use more airports by Chris453 · · Score: 1

    Instead of having only a few super-airports that all airlines use for connecting flights, why not reduce traffic to those airports by having more hubs?

    1. Re:Use more airports by Anonymous Coward · · Score: 2, Insightful

      Can you say "Economics"? Airlines are corporations. Corporations exist to return profits to their investors. Fewer hubs = lower people and equipment expense = higher profit. Seems we used to do it that way - but that was when the airline routes were REGULATED for the public good ... that went by the board as soon as they got enough congressmen in their pockets. God (or the deity of your choice) forbid we should worry about providing public services that work and are convenient and useful. (Gets down off the corner soap box).

    2. Re:Use more airports by Anonymous Coward · · Score: 1

      I sure would love it if flying a couple states over could be done from one of my nearby regional or municipal airports without needing a private plane (or a buddy with one) to do so.

    3. Re:Use more airports by CohibaVancouver · · Score: 1

      Seems we used to do it that way - but that was when the airline routes were REGULATED for the public good ... that went by the board as soon as they got enough congressmen in their pockets

      You're conveniently forgetting how expensive airfares were in those good ol' days.

  7. Pounds by wonkey_monkey · · Score: 1

    improve flow on the runways and save nearly 100 pounds of fuel for each aircraft.

    100 pounds of fuel, or 100 pounds of fuel?

    --
    systemd is Roko's Basilisk.
    1. Re:Pounds by weilawei · · Score: 2

      100 pounds of fuel. ;)

    2. Re:Pounds by Krishnoid · · Score: 2

      99 pounds of fuel on the jet,
      99 pounds of fuel,

    3. Re:Pounds by Anonymous Coward · · Score: 0

      Hose 'em down, spray it around,
      98 pounds of fuel on the jet,

    4. Re:Pounds by Duhavid · · Score: 1

      99 pounds of fuel on the jet,
      99 pounds of fuel,
      take one out
      make it aloft

      --
      emt 377 emt 4
    5. Re:Pounds by fisted · · Score: 1

      98 pounds of fuel on the jet,
      Hose 'em down, light it up,
      0 pounds of fuel on the jet.

  8. 22 billion lost by xdor · · Score: 2

    Does this include economic activity lost for the FAA being too shortsighted or too belligerent to have a workable permit system for commercial use of drones in 2014?

    1. Re:22 billion lost by Anonymous Coward · · Score: 0

      Tell you what, you make them comply with current airworthiness standards and I'll let them fly. Give you a hint, none of them have triple-string flight controls. None of them have any ability to reliably detect and avoid other traffic. None of them have a lost-link profile that's compatible with national airspace system. It's not belligerence on the part of the FAA, it's a deliberate process to weaken the regulations without killing people, and that deliberate process takes time.

      Drones are inherently dangerous. They're fully autonomous flying machines. All flying machines are inherently dangerous until gravity goes away. Add in the increased complexity from having the operator separated from the machine by RF links that routinely fail, and the operator losing the physical sensations from the machine, and they're more dangerous than the closest equivalent, which is an A340, also a digital fly by wire device. No drone would be commercially viable if it had to meet current robust safety standards. Therefore, we're deliberately weakening those standards, while not losing an adequate safety margin.

      As an aside, do you think the dirty capitalists will be any different in the drone industry than other industries where their mistakes have killed millions of people?

  9. Couple of issues by hurfy · · Score: 3, Interesting

    1st this was done 4 years ago. The future is now.

    But mostly...

    Why were none of the tests more than 4 hours long? What happens after the test period, do they need to recover or something?
    If this is so efficient why are we talking about a 4 year old test instead of the implementation 3 years ago?!?

  10. Free-routing by TheSync · · Score: 5, Informative

    The Economist has a great article on free-routing. Not only does this save time & fuel, but a "continuous descent approach" is also quieter at airports.

    1. Re:Free-routing by Anonymous Coward · · Score: 0

      After seeing the image portraying continuous descent approach, all I could think about was: "Solar gliders, with hydrogen booster rockets giving the first push." An analog to the traffic control system approach of the summary to improve throughput would be the slowing of road speeds in cities to reduce congestion, and the push for multi-core in CPUs.

  11. 100 lbs fuel vs. "On-time departure" by Anonymous Coward · · Score: 0, Interesting

    When the choice us between saving 100 lbs of fuel (possibly savings for some other airline) or declaring an on-time departure because you've pulled back from the gate, which do you think the airlines are going to choose? Hint: they have to pay flight crew from the time the door closes today and they have been choosing to pay their employees more rather than sit longer at the gate.

    1. Re:100 lbs fuel vs. "On-time departure" by TheRaven64 · · Score: 2

      I don't care if the plane I'm on departs on time, as long as it arrives on time. I've been in a situation once where changing winds meant that delaying takeoff allowed the plane to land earlier. I don't recall anyone on the flight being upset with the decision to depart a bit later...

      --
      I am TheRaven on Soylent News
    2. Re: 100 lbs fuel vs. "On-time departure" by Anonymous Coward · · Score: 0

      No one cares if you care... You are only a consumer, and we don't account for anything individually.

      As a matter of fact, these $22 billion dollar 'costs' would still make up part of the GDP, so all the free-marketers out there should be screaming bloodie murder over the gubment's conspiracy to ruin the economy.

    3. Re:100 lbs fuel vs. "On-time departure" by Anonymous Coward · · Score: 0

      This.

      We have to be at airports ridiculous amounts of time ahead of the flight for the usual TSA and baggage check nonsense, so actual departure time is moot. But arrival time is all about getting out of the airport as quickly as possible or making that connecting flight.

  12. Business Continuity Plan by Anonymous Coward · · Score: 1

    If the FAA was a private corporation this would never be an issue.
    They’ve been spending money on an Operational continuity plan (OCP) for 13 years.
    The FAA can only spend money on paperwork, not on productive products.

    FAA garbage doc 1
    FAA garbage doc 2
    Do a keyword search for OCP or BCP to see whats going on.

    1. Re:Business Continuity Plan by plopez · · Score: 2, Funny

      "If the FAA was a private corporation this would never be an issue."

      Q: Ummmmmm........ yeah. So Mr. AC, what have you been spending your time on?
      A: Yeah, I just stare at my desk, but it looks like I'm working. I do that for probably another hour after lunch too, I'd say in a given week I probably only do about fifteen minutes of real, actual, work.

      Q: this continuity plan you are working on, does it generate any revenue?
      A: Not really. I mean if the company gets bought out everyone will be laid off any way so it isn't really a priority. And if the company goes under it doesn't matter much anyway either.

      Q: So why are you doing it?
      A: Well, management told out client we have a continuity planning committee.

      Q: So who reviews these plans?
      A: Well we were supposed to have review meetings but first we had to finalize the requirements for the meetings. But that led to more meetings as we realized we really did not know what was supposed to be in the plan.

      Q: So the plan is now in the works?
      A: No, not really. People got pulled off to help with some other revenue generating projects.

      Q: What do you say you do?

      --
      putting the 'B' in LGBTQ+
  13. Old news...problem already addressed. by freak0fnature · · Score: 2

    That's because Boston isn't utilizing decent surface management software. Busier airports like Atlanta and JFK do, so if you want to do a real study, study an airport that has already addressed this issue. http://www.airtrafficmanagemen... https://www.youtube.com/watch?...

  14. Google Y ambition by Anonymous Coward · · Score: 0

    Isn't this one of Larry Page's Google Y's ambitions also?

  15. one airplane per green by Anonymous Coward · · Score: 0

    Great, now we are going to have ramp metering for airplanes.

  16. NASA is on it by Alomex · · Score: 2

    People often forget that the first A in NASA stands for aeronautics. They have been hard at work at fully computerizing air traffic control. However as you can imagine this requires lots of testing given the potentially fatal consequences. NASA has held several competition rounds among contractors for the next air traffic control system, providing feedback to all candidates for the next round.

    Here is one such paper. There are many others, from various academia and industry consortia. The work they are doing is rather cool.

    1. Re:NASA is on it by PPH · · Score: 1

      NASA ..... They have been hard at work at fully computerizing air traffic control.

      But then

      NASA has held several competition rounds among contractors

      So NASA really isn't doing the work. They are contracting it out. And as this will inevitably be a multi billion dollar contract, a shitstorm will ensue among all the losing bidders. This will tie the contract up in courts for decades as nobody is willing to admit defeat and just walk away. Meanwhile, stock up on vacuum tubes to keep the old equipment running.

      If NASA (or better yet the FAA) just told the likes of Boeing and Lockheed to fuck off and build it themselves, the resulting butt-hurt would shut the government down.

      Inevitably, whatever NASA and the FAA do select, the software will be delivered billions over budget, decades late and full of bugs.

      --
      Have gnu, will travel.
    2. Re:NASA is on it by Alomex · · Score: 1

      This might be news to you, but NASA does very little work in house. Most things are contracted out.

    3. Re:NASA is on it by PPH · · Score: 1

      This might be news to you,

      No its not. I used to work for a government contractor (NASA and other departments). If NASA tried to roll their own, we would have gone to Congress to have them defunded to the point that they would have been an organization consisting of a bind guy with a checkbook and an 'Approved' stamp.

      --
      Have gnu, will travel.
  17. What is new? by Mostly+a+lurker · · Score: 1

    I cannot find much detail on this, but it sounds suspiciously like well known techniques for avoiding congestion in complex systems that I learned in queuing theory over 40 years ago.

  18. We Don't Need ATC Any More by Anonymous Coward · · Score: 1

    This story frustrates the hell out of me. Once again, the government refuses to realize that the entire air traffic control system is out of date and no longer needed. Instead of improving their algorithms, they should be dismantling all the ARTCCs and TRACONs, leaving only the tower flowers and ground controllers in the major airports. Before the Slashdot community gets it collective panties in collective bunches, please realize this is a simple problem of government seizing control over something at a time when nobody had any better ideas and refusing to give control back to the people after ATC was no longer needed.

    In 1956, a United Airlines DC-7 and a Trans World Airlines L-1049 Super Connie collided over the Grand Canyon. Back in the 50's the skies were nearly empty and such a disaster was inconceivable. Obviously, something needed to be done to prevent repeat disasters. At the time there was no techology that gave pilots the ability to see other planes through bad weather or over great distances. So, the government stepped in and blanketed the entire country with radar stations and Air Route Traffic Control Centers (ARTCC). This system has been in place ever since. As a result, you cannot fly ANYWHERE without the government knowing about it and controlling your every move.

    Some decades passed and the Traffic Collision Avoidance System (TCAS) was developed along with weather radar, both of which are required on every high-altitude and commercial plane. In fact, so much time has passed that TCAS is becoming outdated in favor of TCAS II, TCAS III, and TCAS IV. Additionally, groundwork is being laid to create an entirely new air traffic avoidance system based on the existing AIS and S-AIS systems.

    After working out some cultural and training issues involving the proper prioritizing of TCAS and ATC instructions (en.wikipedia.org/wiki/Überlingen_mid-air_collision), I don't believe there's been a single mid-air collision between aircraft equipped with TCAS where both TCAS devices were operating.

    The simple fact of the matter is that pilots are now equipped with airborne technology that lets them see and avoid each other. We don't need an air traffic control system or government control over every flight any longer. In fact, in Crandall v. Nevada, 73 U.S. 35 (1868) the Supreme Court ruled it is illegal and unconstitutional for the government to demand to know our whereabouts and our travel plans or to otherwise interfere with our freedom to travel as we please.

    What's needed is a minimum set of "rules of the road" that determine which aircraft must yield right of way in any situation, and the FAA has already established these. In fact, they are currently coded into every TCAS unit. The government's active participation in and control over every flight should be eliminated in favor of the role we need government for the most: that of service, acting as referee and law enforcement agency. This is exactly how marine vessels and vehicles on our roads operate.

    One of the more dangerous aspects of the ATC system as it exists now is our system of "highways in the sky". The sectional maps pilots use to navigate use a web of straight lines drawn between radio navigation beacons. ATC clearances always involve travelling along a route that traverses these "airways". Instead of allowing airplanes to fly wherever they want, the net effect of the FAA's airway system is to gather the airplanes together into these airways, bringing them closer together and greatly increasing the number of potential collisions. Once ATC is removed, planes will be spread out all over the sky, reducing overall fuel consumption and reducing the potential for collisions.

    We need to resist these kinds of power plays the government always perpetrates on us. I have to admit that with such a left-leaning, narcissistic, big government President, the odds of seeing the right thing happen here are extremely low.

    1. Re: We Don't Need ATC Any More by Anonymous Coward · · Score: 0

      He's right! First plane to the airport should win, period. Departures should just get in a big queue for the active runway, and if it's a nice day, arrivals could bypass the terminal altogether by dumping everyone at parking and tossing their carry-ons after them.

      Personal Amazon baggage drones could handle the rest, and for anyone who doesn't mind a little delay, Uber could offer reduced rate baggage deliveries via a mesh delivery service, switching the luggage from car to car til it gets close enough to your home that the driver could just drop it curbside for you.

    2. Re:We Don't Need ATC Any More by Anonymous Coward · · Score: 0

      So much text, and all you managed to demonstrate is that you have absolutely no clue whatsoever about how ATC works...

  19. Outdated air traffic control systems by jwbales · · Score: 0, Insightful

    The US government should sell the air traffic control system to the highest bidder. That would probably be a consortium of the major airports and airlines. Any system run by bureaucratic management will necessarily be way behind the times technologically. The air traffic control system needs to be operated as a business, not a bureaucracy.

    1. Re: Outdated air traffic control systems by Anonymous Coward · · Score: 0

      OMG! What if Jeff Bezos or Berkshire Hathaway won? Either Amazon would end up offering personal drone-copters controlled by Kindle apps or Geico's lizard would actually captain all commercial air traffic, simultaneously. Either way, the age pacetized personal transportation would exceed all reason.

    2. Re: Outdated air traffic control systems by jwbales · · Score: 0

      I was being serious.

    3. Re:Outdated air traffic control systems by Anonymous Coward · · Score: 0

      So what I'm hearing is Lockheed and Raytheon would still be in charge?

  20. Is funded from aviation industry profits? by Anonymous Coward · · Score: 0

    Ideally, the airlines themselves would pay for the service.

  21. control control control by Anonymous Coward · · Score: 0

    Air traffic control is the nanny state at its worst. Planes should be able to fly anywhere they goddam like, dancing a fandango if they want. If they crash into another plane then it's a simple matter of the lawyers working out whose fault it is. That will directly hit the bottom line and THE MARKET will sort it out like it does everything else.
    --
    roman_mir

    1. Re:control control control by riverat1 · · Score: 1

      What a libertarian fantasy world you live in. All the lawyers in the world can't help you if you're dead because of someone else's malfeasance.

  22. More Trains, and faster trains. by koan · · Score: 1

    That is all.

    --
    "If any question why we died, Tell them because our fathers lied."
  23. Totally Autonomous system by UK+Boz · · Score: 1

    I'm not talking AI here, just how difficult can it be to have the computer program do all this real time? There cant be more than a few thousand planes in the air at any time, on known vectors and in 3D space, what am I missing?

    --
    www.boznz.com Simple solutions to complex problems.
    1. Re:Totally Autonomous system by FlyingGuy · · Score: 1

      I Invite you to watch this. http://youtu.be/d9r3H4iHFZk

      --
      Hey KID! Yeah you, get the fuck off my lawn!
  24. Want to hear a horror story about the last one??? by Anonymous Coward · · Score: 0

    Yeah...

    20+ years ago they "Upgraded" to new computerized systems.

    Ran into a guy that used to talk about how his father worked on the new software and how F'ing retarded and horrifying the FAA bureaucracy is. Seems they had been designing a great system that would virtually eliminate the chances of screw ups and had to do a major re-write and make it a mess.

    Why?

    The FAA has a HUGE training system in place for the old system. They weren't willing to upgrade the training program, so the "New" software system had to work the same way the old crappy equipment worked. Serious design flaws and all.

    Wow...

  25. TCAS, Mode S, and IFR by macsimcon · · Score: 1

    Right now, if I want to fly from LAX to JFK, I need to wait for ATC to slot me so I’ll likely be able to land without delay upon reaching JFK. Why do I still have to talk to ATC to do this? Why are humans even involved when computers could do this instantaneously? I should just be able to file my flight plan from a laptop or smartphone, and the system tells ME when I need to depart (i.e. I get an email stating “depart RWY 19R 1900Z to 1905Z). This would make ground control’s job a hell of a lot easier. Any aircraft not contacting ground twenty minutes before their assigned departure time goes to the back of the line.

    Furthermore, anything in the air, whether a helicopter, drone, or 1950s taildragger should be required to have Mode S. If my TCAS is interrogating everything in a 360 degree sphere around me, and feeding that to my MFD and autopilot, there’s very little chance any of us will ever run into each other, and I don’t need to worry about visibility when flying VFR, or ATC while flying in IMC.

    1. Re:TCAS, Mode S, and IFR by FlyingGuy · · Score: 1

      The risk of en-route collision is really, really small.

      this risk of collision increases exponentially as all the planes bound for JFK, Newark, LaGuardia, LAX, SFO etc. get closer to the airport. I live in the SF Bay Area, on busy flight night and there is no fog you can see them lined up for landing for miles and miles, two abreast on the approach to 28L/R and that is when you can't have every pilot deciding for themselves what order they go in and how far apart they are.

      As for TCAS it is a good thing, but it has limits as to how much information if gives you. 500ft below at 270 relative to you, and in a landing pattern or executing the published missed approach it is just not good enough when 400 peoples lives are on the line.

      As far as en-route goes everyone is going to be trying to fly the least cost route from say KLAX to KJFK. With the volume of flights getting larger and larger how long do you give it before the pissing matches start over who gets the route in that time slot?

      You can only land so many planes at a given airport in n amount of time. If everyone gets there at around the same time the sequencing for landing is going to be way to hairball.

      The PHB's should never, ever, be in charge of something like this.

      --
      Hey KID! Yeah you, get the fuck off my lawn!
    2. Re:TCAS, Mode S, and IFR by Plouf · · Score: 1

      Will your computer take into account that the small C172 VFR guy just picked the wrong taxiway and is now making you miss your 5minutes slot, and needs to recompute the whole thing? And if you only rely on TCAS, good luck avoiding the PA28 pilot who forgot to turn his transponder on once engaged on the rwy (because you know we need to turn that stuff off when on ground frequency to avoid wrong TCAS alarms from landing airliners). Computers are good, but planes are still piloted by humans...

  26. NextGen by Anonymous Coward · · Score: 0

    This is part of NextGen, a scheduled overhaul of FAA operations that has ran over time and financial budgets and could cost up to $150 billion by 2022. The idea is to reduce congestion by moving from ground-based radar to GPS-based technologies that increase the ground towers' and aircraft's awareness of each other.
    It continues to see modest implementations with technologies like ADS-out and ADS-in, more advanced ground radar systems and improved flight paths, but has a long way to go. The FAA needs to take a stronger leadership role, and convince airliners to use these new paths. You might recognize JetBlue and Southwest's advertising campaigns for the use of special wingtips that increase fuel efficiency. This is all part of NextGen.