A CLEARER WAY THERE

Transit information,
with the details intact.

Transit Atlas is an independent reference for routes, stops, schedules and current departures in Boston, Portland and Denver.

Official data. Complete browser access.

Schedules come directly from agency-published GTFS feeds. Each update is validated and imported as a separate version before it replaces the active schedule. Route maps are drawn from feed geometry, rather than copied from agency map artwork.

The date matters.

Timetables use the agency’s service calendar, including published holiday additions and removals. Service that runs after midnight can belong to the preceding service day; the full schedule marks those times as next-day service. All route times use the agency’s timezone.

Live means live.

Live departures require fresh agency data matched to the relevant trip and boarding visit. If there is no usable prediction, we show the scheduled time. Missing live data does not mean a trip is canceled. Cancellation and skipped-stop labels require explicit agency updates.

What to check before traveling

Schedules and predictions can change. Check the departure board, active alerts and the agency’s official information. Published accessibility fields do not establish that an elevator is currently working. Nearby-stop coordinates do not verify a walking connection.

Saved stops and your location

Saved stops remain in this browser’s local storage. Location access is optional and requested only when you choose nearby stops. Coordinates are used for that lookup and are not stored by this application. No advertising or analytics trackers are included.

Data providers

MBTA · Boston

Schedule and realtime data provided by MassDOT / MBTA.

Developer documentation ↗ · Source terms ↗ · Official agency website ↗

TriMet · Portland

Transit data provided by TriMet and the feed’s participating agencies.

Developer documentation ↗ · Source terms ↗ · Official agency website ↗

RTD · Denver

Transit data provided by the Regional Transportation District. This independent site is not endorsed by, sponsored by, or affiliated with RTD.

Developer documentation ↗ · Source terms ↗ · Official agency website ↗

View current feed timestamps and validation summaries →