There will not necessarily be a new button on a boarding pass.
No passenger will be asked to interact with an AI system before boarding a flight.
If SMART works as intended, its effects should instead appear indirectly.
A flight might depart closer to its scheduled time.
An aircraft might avoid a congested route.
An airline might receive earlier notice that a destination airport is likely to become constrained.
A developing weather problem might be handled before it creates a chain reaction of delays.
The FAA says SMART is intended to reduce delays, improve on-time performance, reduce fuel burn and speed recovery from weather and congestion events.
Those are significant potential benefits.
But they are goals, not guarantees.
The Washington trial is necessary precisely because the FAA needs to measure how well the system performs in real-world conditions.
Weather Is One of the Biggest Challenges
Weather is perhaps the clearest example of why predictive air-traffic management matters.
A thunderstorm does not simply close a piece of sky.
It can force aircraft to deviate around it.
When hundreds of aircraft are operating through the same region, even a relatively small weather system can create complicated traffic patterns.
Airports can also lose capacity during bad weather.
Runway configurations may change.
Aircraft may need greater spacing.
Visibility can fall.
Departure rates can decline.
The result can be a mismatch between the number of aircraft that airlines want to operate and the number that the airspace or airport can safely handle.
FAA's SMART fact sheet specifically identifies weather impacts as one of the areas the system is designed to predict.
The value of AI here comes from combining weather information with the rest of the aviation picture.
Knowing that a storm exists is not enough.
The system needs to estimate what that storm means for actual flights.
Which flights will encounter it?
Which routes could become overloaded?
Which airports have enough capacity to absorb diverted traffic?
When should aircraft depart?
What happens if the storm moves faster or slower than expected?
Those are network-level questions.
Airport Capacity Is Another Piece
Airspace is only part of the problem.
Airports themselves have finite capacity.
There are only so many runways.
Only so many gates.
Only so many arrivals and departures that can safely be processed within a given period.
Even if there is plenty of open airspace, an airport can become the bottleneck.
SMART is intended to incorporate airport capacity into its planning picture.
That means the system can theoretically look beyond individual flights and consider how airport constraints interact with the larger network.
This is important because an aircraft leaving on time does not necessarily help the system if its destination cannot accommodate it.
A more efficient strategy might be to delay the departure slightly rather than allowing the aircraft to arrive at an airport where it will have to circle or wait.
That is the logic behind predictive management.
A few minutes of planned adjustment on the ground can sometimes prevent a much larger disruption in the air.
The Cost of Being Reactive
Flight delays have consequences far beyond passenger frustration.
Airlines consume additional fuel when aircraft hold or divert.
Crew schedules can be disrupted.
Aircraft rotations can fall behind.
Passengers can miss connections.
Airports can become congested.
Gates may be occupied longer than planned.
A delay that begins with one flight can therefore propagate through an airline's schedule.
This is one reason the FAA says SMART is designed to address problems before they spread.
The agency's fact sheet specifically describes early identification of constraints and conflicts as a central function of the system.
The concept resembles preventative maintenance.
It is generally easier to address a developing problem while it is small than after it has become a system-wide failure.
SMART attempts to apply that principle to traffic flow.
Washington Is Also a Stress Test for Modernization
The timing of the SMART deployment is significant because the FAA is facing broader pressure to modernize its infrastructure.
The agency has been working on multiple technology upgrades, including telecommunications, surveillance and other air-traffic-control systems.
Recent disruptions have highlighted the vulnerability of aging infrastructure.
On September 21, the same day SMART was being introduced, a major telecommunications failure disrupted air traffic across parts of the U.S. Northeast after a backup fiber line was accidentally cut in New Jersey. Reuters reported that thousands of flights were delayed or canceled or otherwise disrupted as FAA communications systems were affected.
That event illustrates an important reality.
Artificial intelligence can improve decision-making, but it cannot compensate for every weakness in the infrastructure beneath it.