What is due, and how sure.
Pick a station. You get every train calling there in the next ninety minutes, and for each one, three times side by side: the timetable, what Irish Rail currently expects, and what RailCast expects with its range.
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How to read a row
Expected between 19:07 and 19:10 · last reported 5.0 min late at Park West and Cherry Orchard
- A223 is Irish Rail's code for that one service on that one day. Train or DART says which network it is on: DART is the electric line along Dublin Bay, everything else is marked Train.
- to Dublin Heuston is the train's final stop, which is how you pick yours. Next to it, whether your station is where the train starts, one it stops at along the way, or where it ends, then where it started. Most trains on a board are only passing through, so your own station appears in neither name.
- Timetable is the published time. It never changes.
- Irish Rail is the operator's own estimate, the number on the real departure board.
- RailCast is this site's estimate, on flaps. Under it, the range the arrival should fall inside four times in five, and where the train last reported.
Every service listed is still to arrive. Each RailCast time is saved the moment it is shown and checked against the real arrival the next morning.
A dash instead of a prediction
A dash under RailCast means there is no prediction for that service yet. It can only answer once the train is moving and has reported somewhere. The times beside it are Irish Rail's.
Why so many dashes at Heuston, or late at night?
RailCast works from how late a train already is at the stops behind you. At a terminus like Heuston most services on the board start there, so few have reported anywhere; a through station like Kildare or Portarlington shows far fewer dashes. Late in the evening most boards look like this, because the trains on them have not set off yet.
They stay on the board because they are still the trains you are waiting for.
Can it tell me if a train stops where I am going?
No. It answers one question, when will that train actually get here, and assumes you already know which train you want. It is not a journey planner. Use Irish Rail's own planner to find the service, then come back here for the arrival time.
Timetable is the published time. Irish Rail is the operator's own estimate. RailCast, on the flaps, is this site's, with the range the arrival should fall inside four times in five. A dash means RailCast has no prediction for that service, which is the case until the train is moving and has reported at a stop. How often the range is right is measured every night.
Boards are limited to a few per minute so the Irish Rail feed is not hammered. If you reach that limit the page says so and counts down.