Car accidents are up as well, less so this year than last. Both Air traffic and Car accidents have been up since 2020. Its not unique to Air traffic control. https://www.forbes.com/sites/tanyamohn/2023/09/28/road-crash... Its also happening worldwide, more air traffic near misses in the EU alongside road accidents as well. I suspect its world wide.
I don't see much correspondence with:
> In the fiscal year that ended Sept. 30, there were 503 air traffic control lapses that the F.A.A. preliminarily categorized as “significant,” 65 percent more than in the prior year, according to internal agency reports reviewed by The Times. During that period, air traffic increased about 4 percent.
Especially since the NYT blames the latter on "A nationwide staffing shortage — caused by years of employee turnover and tight budgets, among other factors — has forced many controllers to work six-day weeks and 10-hour days."