NYC subway status, at a glance. Live at mtastat.us.

Real-time status for all 23 NYC subway lines via the GTFS-RT alerts feed.

There's also a native iOS app with home-screen widgets in NYCTransit/.

• Real-time status for all 23 NYC subway lines via the GTFS-RT alerts feed
• Severity-ranked alerts — shows the worst active alert per line
• 5-minute in-memory cache for train data
• PWA-ready — installable on iOS and Android
• Deployed on Vercel

NYCTransit/ is a standalone SwiftUI app with a WidgetKit extension. It fetches the same transit feed and displays line status on your home screen via small and medium widgets.

• Swift 5.9 / SwiftUI / WidgetKit — iOS 17+
• XcodeGen spec in project.yml (or use the checked-in .xcodeproj directly)
• Shared code in Shared/ (models, transit service, alert processing, App Group defaults)

npm install
npm run dev

Runs at localhost:5173.

Production build:

npm run build
npm start

Open NYCTransit/NYCTransit.xcodeproj in Xcode, set your development team, and run on a device or simulator. Alternatively, regenerate the project from project.yml with XcodeGen.

• SvelteKit (Svelte 5) with adapter-vercel
• GTFS-RT JSON feed (no key required)
• Swift / SwiftUI / WidgetKit — native iOS app and home-screen widgets