# Arrivals — Arelo

Learn how Arelo sources and displays real-time arrival predictions.

[Arelo](/) / [Docs](/docs) / Arrivals

## Data sources

Bay Area agencies (Muni, BART, Caltrain, AC Transit, SF Bay Ferry) are sourced via the 511.org SIRI real-time API. New York City agencies (MTA Bus, NYC Subway, Metro-North, LIRR) are sourced via the MTA GTFS-RT feeds. Feeds are polled frequently and arrival predictions update automatically. Pull to refresh at any time.

## Reading arrival times

Arrivals are shown as minutes until arrival. Badge colors indicate urgency:

- **Green badge (≤5 min):** The vehicle is close. Head to the stop now.
- **"NOW":** The vehicle is arriving imminently. Move immediately.
- **Gray time:** Scheduled time only. Live data is temporarily unavailable for this vehicle.

Caltrain departures are shown as scheduled departure times from each station (e.g. "10:32 AM") rather than countdown minutes, matching how Caltrain riders plan their trips.

## Watch Mode and Live Activity

Tap the clock icon on any arrival row to enter Watch Mode. A persistent mini bar appears at the bottom of every tab showing a live countdown for that vehicle. On supported iPhones, a Live Activity also appears on the Lock Screen and in the Dynamic Island, so you can track your bus or train without unlocking your phone.

## Arrival alerts

Swipe left on any arrival row to set a one-time notification for that specific vehicle. When the vehicle is approaching your stop, Arelo sends a local notification. No account or sign-up required. Alerts are automatically cleared after the vehicle passes.

## Walking time

Each stop shows an estimated walking time from your current location. Walking time adjusts based on your mobility profile in Settings: default, fast walker, slow walker, cane user, or wheelchair user. This lets you quickly see whether you can make the next arrival before leaving.

---

← [Transit Services](/docs/transit-services) | Next: [Weather](/docs/weather)