trainETA.com
This project visualizes live NYC subway activity using the MTA’s GTFS‑RT feeds. It’s built as a real-time map plus per-line station boards so commuters can see where trains are and what’s coming next.
What it shows
Live train positions, station stops, and arrival countdowns across all subway lines.
How it works
API routes fetch GTFS‑RT feeds, normalize the data, and cache results for a fast map experience.
Built by David Aharoni