GWR 811A34
View line GWR
Alerts for train 811A34
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
68%
15/22 runs under 3 min
RT coverage: 22 full · 0 partial · 0 no data
On-time · 90 days
61%
43/71 runs under 3 min
RT coverage: 71 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +1 min
P90
+10min
9 in 10 runs arrive with less than this
30 days: +5 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
- Fri 14 Aug Max en route +47 min · last fix heading to 73251 +47 min
- Tue 1 Sept Max en route +21 min · last fix heading to 73251 +21 min
- Mon 24 Aug Max en route +15 min · last fix heading to 73251 +15 min
- Wed 23 Sept Max en route +14 min · last fix heading to 73251 +14 min
- Sun 23 Aug Max en route +15 min · last fix heading to 73251 +14 min
Distribution · 90 days
71 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 3% · 2
- On time 58% · 41
- 3–10 min 28% · 20
- 10–30 min 10% · 7
- 30+ min 1% · 1
On-time by weekday
- 55% M n=11
- 80% T n=10
- 67% W n=12
- 54% T n=13
- 85% F n=13
- — S n=0
- 25% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 1 Nov | Maidenhead 22:49 | +10 min | +10 min |
| Fri 30 Oct | Slough 21:17 | +1 min | +3 min |
| Thu 29 Oct | Slough 21:21 | +5 min | +9 min |
| Sun 25 Oct | Maidenhead 22:51 | +5 min | +5 min |
| Fri 23 Oct | Maidenhead 21:19 | +2 min | +2 min |
| Thu 22 Oct | Slough 21:20 | +3 min | +5 min |
| Wed 21 Oct | Maidenhead 21:16 | 0 min | +1 min |
| Tue 20 Oct | Maidenhead 21:17 | 0 min | +3 min |
| Mon 19 Oct | Maidenhead 21:15 | −1 min | +1 min |
| Sun 18 Oct | Slough 22:52 | +7 min | +8 min |
| Fri 16 Oct | Maidenhead 21:17 | +1 min | +3 min |
| Thu 15 Oct | Slough 21:15 | −1 min | +2 min |
| Wed 14 Oct | Maidenhead 21:19 | +3 min | +3 min |
| Tue 13 Oct | Slough 21:18 | +1 min | +3 min |
| Mon 12 Oct | Maidenhead 21:16 | −1 min | +2 min |
| Sun 11 Oct | Slough 22:43 | −1 min | +2 min |
| Fri 9 Oct | Maidenhead 21:16 | 0 min | +6 min |
| Thu 8 Oct | Maidenhead 21:17 | +1 min | +1 min |
| Wed 7 Oct | Maidenhead 21:16 | 0 min | +2 min |
| Tue 6 Oct | Maidenhead 21:16 | 0 min | +1 min |
| Mon 5 Oct | Maidenhead 21:16 | 0 min | +2 min |
| Sun 4 Oct | 73251 22:50 | +5 min | +6 min |
| Fri 2 Oct | 73251 21:15 | −1 min | +2 min |
| Thu 1 Oct | 73251 21:16 | 0 min | +1 min |
| Wed 30 Sept | 73251 21:17 | +1 min | +7 min |
| Tue 29 Sept | 73251 21:17 | 0 min | +1 min |
| Mon 28 Sept | 73251 21:16 | 0 min | +6 min |
| Sun 27 Sept | 73251 22:53 | +2 min | +2 min |
| Fri 25 Sept | 73251 21:16 | −1 min | +2 min |
| Thu 24 Sept | 73251 21:20 | +4 min | +4 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.