GWR 811A19
View line GWR
Alerts for train 811A19
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line GWR.
The mini-map returns when the train runs
On-time · 30 days
56%
14/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
39%
30/76 runs under 3 min
RT coverage: 76 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +2 min
P90
+12min
9 in 10 runs arrive with less than this
30 days: +10 min
Last 30 days
Delay at the end of each run, in minutes. One bar per run.
- On time (<3 min)
- 3–10 min
- 10–30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Tue 6 Oct Max en route +119 min · last fix heading to Slough +119 min
- Mon 14 Sept Max en route +51 min · last fix heading to 73251 +50 min
- Wed 23 Sept Max en route +34 min · last fix heading to 74331 +34 min
- Tue 4 Aug Max en route +28 min · last fix heading to 73251 +28 min
- Mon 7 Sept Max en route +26 min · last fix heading to 73251 +23 min
Distribution · 90 days
76 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 3% · 2
- On time 37% · 28
- 3–10 min 46% · 35
- 10–30 min 11% · 8
- 30+ min 4% · 3
On-time by weekday
- 23% M n=13
- 50% T n=12
- 31% W n=13
- 54% T n=13
- 46% F n=13
- 33% S n=12
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 26 Oct | Maidenhead 13:44 | +2 min | +2 min |
| Sat 24 Oct | Slough 13:52 | +9 min | +11 min |
| Fri 23 Oct | Maidenhead 13:42 | −1 min | +4 min |
| Thu 22 Oct | Slough 13:53 | +11 min | +12 min |
| Wed 21 Oct | Maidenhead 13:41 | −1 min | +1 min |
| Tue 20 Oct | Slough 13:53 | +12 min | +13 min |
| Mon 19 Oct | Maidenhead 13:42 | 0 min | +1 min |
| Sat 17 Oct | Slough 13:42 | −3 min | +1 min |
| Fri 16 Oct | Slough 13:45 | +3 min | +5 min |
| Thu 15 Oct | Slough 13:45 | +3 min | +6 min |
| Wed 14 Oct | Maidenhead 13:44 | +2 min | +3 min |
| Tue 13 Oct | Slough 13:43 | +1 min | +3 min |
| Mon 12 Oct | Maidenhead 13:43 | +1 min | +2 min |
| Sat 10 Oct | Slough 13:43 | −1 min | — |
| Fri 9 Oct | Maidenhead 13:43 | +1 min | +2 min |
| Thu 8 Oct | Maidenhead 13:43 | +1 min | +5 min |
| Wed 7 Oct | Maidenhead 13:46 | +4 min | +5 min |
| Tue 6 Oct | Slough 15:47 | +119 min | +119 min |
| Mon 5 Oct | Slough 13:45 | +3 min | +5 min |
| Sat 3 Oct | 73251 13:46 | +3 min | +4 min |
| Fri 2 Oct | 73251 13:44 | +1 min | +4 min |
| Thu 1 Oct | 73251 13:42 | 0 min | +3 min |
| Wed 30 Sept | 73251 13:51 | +9 min | +10 min |
| Tue 29 Sept | 73251 13:41 | −1 min | +3 min |
| Mon 28 Sept | 73251 13:45 | +3 min | +10 min |
| Sat 26 Sept | 73251 13:47 | +4 min | +4 min |
| Fri 25 Sept | 73251 13:53 | +11 min | +16 min |
| Thu 24 Sept | 73251 13:43 | 0 min | +3 min |
| Wed 23 Sept | 74331 13:38 | +34 min | +34 min |
| Tue 22 Sept | 73251 13:43 | +1 min | +9 min |
Each run is closed into train_runs (country, train number, service day) from the live positions. Final delay = last delay seen. Partial coverage: the feed stopped before the final stop (last value used, hatched in the chart). No data: a run without any valid delay; counts as neither on time nor late. Data collected since 11 July 2026.