My fellow infrastructure nerds will enjoy this look at the user interface of MTA’s signaling and switching system. https://www.nytimes.com/interactive/2025/04/20/nyregion/nyc-subway-signals.html?unlocked_article_code=1.BE8.35R2.C356pAz0klcR&smid=nytcore-ios-share&referringSource=articleShare
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Geoff has a look at three systems from mechanical to modern digital.
https://youtu.be/UCXav-ptPeA?si=XnqeNBk5LmUPQlon
I know, you can always improve it etc etc. But as I've always said, if it ain't broke, don't fix it.