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You absolutely can see a difference. [0] The term of art is "Runway Incursions", and the stats definitely show our airports are working at the limits of safety.

[0]: https://www.buckycountry.com/2025/09/22/runway-close-calls-u...

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That's a 7 years graph, where category A incursions change by 0.7σ, and total incursions are basically horizontal.

What statistical conclusion are you taking from it?

Category A and B incursions increased by 2.8σ. Further, it was 7 years of increases in a row. Either factor on its own would indicate a process out of statistical control.

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