LaunchBeam

MTA.rip is a train visualizer for the New York City subway. Its creator built it after finding that countdown clock estimates are often inaccurate, and that many delays come from other trains on the same track. Instead of estimates, it shows the trains themselves, so congestion is visible.

The project is open source on GitHub and was written with AI assistance. The author describes the code as very hacky and does not recommend it for learning Go or JavaScript.