The Future of Air Traffic Control: What's Real and What's Hype

Part five of my series on air traffic control. I’m not an ATC professional; this is what I learned from a lot of reading. Sources are at the bottom, and corrections are welcome.

Predicting the future of any technology is a good way to look foolish in ten years. I’m going to do it anyway, but I’ll try to be honest about which parts are already happening, which parts are being tested, and which parts are still a slide in somebody’s conference presentation. In my experience, that last category is always the biggest.

Already Happening

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Space-based surveillance. For most of aviation history, controllers over the ocean had no live picture of where aircraft were. Aireon changed that by putting ADS-B receivers on Iridium’s satellite constellation, with service starting in 2019.¹ Aircraft that already broadcast their position for ground stations are now tracked from orbit too, over oceans, poles, and remote areas where radar will never reach.

Remote towers. Sweden’s Örnsköldsvik Airport has been controlled from a remote center in Sundsvall since 2015, and London City Airport has operated with a remote tower since 2021.² Controllers watch a high-resolution video panorama from cameras at the airport instead of looking out a tower window. For small and mid-size airports, this lets one center serve several airports, and it avoids building and maintaining a tower at each one.

Digital clearances. Data Comm, the FAA’s text-based messaging between controllers and cockpits, is in use at dozens of airports. It’s not glamorous, but every clearance sent as text is one less chance of a misheard number on a crowded frequency.

Drone authorization. Drones are already part of the airspace system. The FAA’s LAANC system (Low Altitude Authorization and Notification Capability) lets drone operators request permission to fly in controlled airspace near airports and get an answer from the system, often in seconds.³ That’s a small, practical example of air traffic management without a human in the loop, and it’s working today.

Being Tested

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AI as a controller’s assistant. This is where most of the buzz is, and where I’d urge the most caution. The realistic near-term role for AI in air traffic control is decision support: flagging conflicts earlier, suggesting reroutes around weather, helping sequence arrivals. Researchers are also working on speech recognition to turn controller-pilot radio conversations into data the system can check. Those are useful ideas. But air traffic control has a very low tolerance for errors, and anything that makes or suggests decisions has to be proven safe before it goes near live traffic. Expect this to move slowly, and that’s appropriate.

Drone traffic management. NASA and the FAA have spent years researching UAS Traffic Management (UTM), a framework for coordinating large numbers of drones at low altitudes without every flight needing a human controller. Today’s drone traffic is manageable. If package delivery by drone becomes common, it won’t be.

Air taxis. Companies like Joby Aviation and Archer Aviation are developing electric vertical takeoff and landing (eVTOL) aircraft for short trips within cities, and they’ve been working through FAA certification. In October 2024, the FAA finalized rules for training and certifying pilots of “powered-lift” aircraft, the category these vehicles fall into.⁴ It’s also a reminder that this industry is still shaking out: Germany’s Volocopter, one of the best-known names in the field, filed for insolvency in December 2024.⁵ If air taxis do arrive in real numbers, they’ll need low-altitude routes, landing sites (usually called vertiports), and a way to share airspace near busy airports with airliners. That’s a genuinely hard air traffic problem.

Still Speculation

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Fully autonomous air traffic control. Some forecasts describe AI running whole sectors with humans only supervising. Maybe someday. For now, the systems that exist are tools controllers use, not replacements for them, and I haven’t seen anything that suggests that changes soon.

Quantum computing. You’ll see claims that quantum computers will solve air traffic scheduling. Scheduling problems like this are the kind of thing quantum researchers like to study, but there’s a long road from a research paper to software a controller relies on at 5 p.m. on a Friday before a holiday weekend.

Space traffic. This one is less speculative than it sounds. Commercial rocket launches are becoming routine, and each one requires closing off a chunk of airspace. As launches get more frequent, fitting them in without disrupting airline traffic is becoming a real coordination problem. Space tourism and point-to-point suborbital travel, on the other hand, are still a long way from needing their own controllers.

What Doesn’t Change

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However the technology changes, a few things won’t. Every new system has to be as safe as the one it replaces, and proving that takes time. Every new connection is something that has to be secured. And people will stay at the center of the system for a long time, because someone has to be accountable when something unexpected happens, and unexpected things happen in aviation every day.

My Guesses

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Since I promised predictions, here they are, clearly labeled as the guesses of a non-expert.

By 2040, I expect satellite-based surveillance to be the primary way aircraft are tracked almost everywhere, with radar kept as a backup. I expect most routine clearances to be sent as data rather than voice. I expect human controllers to still be in charge, working with much better tools. And I expect air taxis to be operating in a few cities, though probably fewer than the current press releases promise.

Beyond that, I’m not going to guess. The people predicting air traffic control on Mars can have that one.

Next up, the final article: ATC Modernization: Money, Politics, and People, which gets into the funding fights, the hiring controversies, and the staffing shortage.

References

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