4 ms·
The historical perspective is kind of interesting. What interests me more is how this stuff can be modernized. Because the current byzantine system of task satu
by jillesvangurp 1y ago
The historical perspective is kind of interesting. What interests me more is how this stuff can be modernized. Because the current byzantine system of task saturating people by making them yell numbers and letters at each other over state of the art 1950s technology for doing so is hardly efficient, scalable, or ultimately secure when it inevitably breaks down under the stresses it induces on pilots and staff involved.
Communication failures and pilot errors are usually major contributing factors to accidents. Pilot errors become more likely when individuals are preoccupied with processing vast amounts of information and demands thrown at them via radio in critical parts of flight (e.g. when finding their way to a runway).
Most of the radio calls today (>95%) are bog standard verbal exchanges about things that should not require any humans in the loop. Anything to with weather is just numbers that can and should be be exchanged digitally. Much faster, less room for error. There should be zero confusion about what the altimeter settings are at a particular airport, what the active runway is, where the wind is coming from, etc.
Anything to do with "who are you and why are you here", which is a disturbingly large proportion of verbal exchanges, sounds like it could be established both more securely, robustly, and efficiently. We have computers now with things like secure hashes, uuids, certificates, etc. Any time you have enough bandwidth to talk to somebody you definitely have enough bandwidth to throw quite a bit of data around securely and reliably.
If you call your granny via whatsapp, facetime, or whatever, there's no need to tell her who you are. Because the app tells her before she even answers. It's completely redundant information. She already knows. There's no valid technical reason why ATC cannot have the same comfort of knowing who they are talking to and what they are flying. It's 2025! Not 1965. ATC should have full context when they talk to people. They shouldn't have to ask for that context verbally. Routine course changes, altitude changes, etc. could be communicated and confirmed via computers. Voice channels should be used for emergencies and non standard situations only.
There are a few things happening in aviation that are making this more urgent after many decades of stagnation in technological changes. Battery electric is going to make flying vastly cheaper and safer than it is today. That's going to increase the amount of relatively inexperienced pilots and plane movements. And secondly, there are an increasing amount of autonomously flying planes, drones, etc. Those are actually going to dominate traffic in the years ahead. Pilots are expensive and are becoming kind of redundant. The amount of flights that ATC needs to juggle is going to increase by at lease one or two orders of magnitude.
The current system won't scale with that, it will have to change. Now would be a good time to start figuring that out.
- wezdog1 1y agoI take your point but simply throwing silicone at the problem doesn't make things all of a sudden better. Wind data can already be uplinked to aircraft through ACARS anyway. The problem is aviation is very dynamic. You can't fly the plane and get a bing bong message cleared to land and not be distracted by it. Voice comms are flawed but one of the benefits is you can hear them and monitor the aircraft state. ATC have systems which add another layer of protection for a misidentified runway for example.
- tjohns 1y agoThis is a very good summary of the situation. We have digital datalink weather, pilots love it and use it frequently. It would be nice to have D-ATIS at smaller airports, but otherwise weather is a solved problem. For everything else, voice communications are a feature. Pilots are trained to spend most of their time heads-up looking out the window, not heads-down looking at computer screens. ATC via text message breaks that flow. (We do actually have ATC via text message, using CPDLC. It's most useful on oceanic flights as an alternative to HF radio, where things happen slowly. Once you're getting close to the destination and events speed up, it's back to voice.) In theory the biggest benefit to CPDLC is uploading a clearance into an FMS automatically, which is already a thing... but even then you have to closely supervise and occasionally step in when it does it incorrectly.
- Hilift 1y ago> If you call your granny via whatsapp Remember flight MH370? The industry doesn't want obviously good solutions if it costs more than $1 per passenger. There is room to automate part of this, and have ATC and pilot human oversight with manual contingencies. But no one is going to pay for it, not through normal or usual and customary processes. Most of the major US stakeholders (airlines) are poor.
- jillesvangurp 1y agoI remember lots of accidents where there was miscommunication, task saturated pilots making mistakes, etc. That's not an excuse to sit on our hands and decide that aviation safety peaked decades ago and that there's no need to modernize. Also, this is bigger than the US. Aviation is a world wide business. I don't think the Chinese are looking at the FAA for learning how to make drones that they produce interface with Chinese ATC. This might be a case where the US will follow instead of lead.