GWR 811K71
View line GWR
Alerts for train 811K71
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
43%
6/14 runs under 3 min
RT coverage: 14 full · 0 partial · 0 no data
On-time · 90 days
56%
31/55 runs under 3 min
RT coverage: 55 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +4 min
P90
+11min
9 in 10 runs arrive with less than this
30 days: +16 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 20 Oct Max en route +41 min · last fix heading to Slough +41 min
- Mon 7 Sept Max en route +39 min · last fix heading to 73251 +38 min
- Tue 1 Sept Max en route +23 min · last fix heading to 73251 +22 min
- Thu 29 Oct Max en route +20 min · last fix heading to Slough +17 min
- Fri 30 Oct Max en route +13 min · last fix heading to Slough +13 min
Distribution · 90 days
55 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 2% · 1
- On time 55% · 30
- 3–10 min 31% · 17
- 10–30 min 9% · 5
- 30+ min 4% · 2
On-time by weekday
- 70% M n=10
- 36% T n=11
- 70% W n=10
- 50% T n=12
- 58% F n=12
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 3 Nov | Slough 07:39 | +4 min | +5 min |
| Mon 2 Nov | Slough 07:39 | +3 min | +5 min |
| Fri 30 Oct | Slough 07:57 | +13 min | +13 min |
| Thu 29 Oct | Slough 08:01 | +17 min | +20 min |
| Fri 23 Oct | Slough 07:45 | 0 min | +3 min |
| Thu 22 Oct | Slough 07:45 | +1 min | +1 min |
| Wed 21 Oct | Slough 07:50 | +6 min | +6 min |
| Tue 20 Oct | Slough 08:25 | +41 min | +41 min |
| Mon 19 Oct | Slough 07:44 | 0 min | +1 min |
| Fri 9 Oct | Slough 07:43 | −1 min | +1 min |
| Thu 8 Oct | Slough 07:44 | 0 min | +1 min |
| Wed 7 Oct | Slough 07:48 | +4 min | +4 min |
| Tue 6 Oct | Slough 20:50 | +12 min | +19 min |
| Mon 5 Oct | 73251 07:43 | −1 min | +1 min |
| Fri 2 Oct | 73251 07:48 | +4 min | +4 min |
| Thu 1 Oct | 73251 07:51 | +7 min | +7 min |
| Wed 30 Sept | 73251 07:46 | +2 min | +2 min |
| Tue 29 Sept | 73251 07:46 | +2 min | +5 min |
| Mon 28 Sept | 73251 07:53 | +8 min | +13 min |
| Fri 25 Sept | 73251 07:54 | +10 min | +10 min |
| Thu 24 Sept | 73251 07:51 | +7 min | +10 min |
| Wed 23 Sept | 73251 07:45 | +1 min | +3 min |
| Tue 22 Sept | 73251 07:47 | +3 min | +3 min |
| Mon 21 Sept | 73251 07:46 | +2 min | +4 min |
| Fri 18 Sept | 73251 07:43 | −1 min | +1 min |
| Thu 17 Sept | 73251 07:46 | +2 min | +4 min |
| Wed 16 Sept | 73251 07:50 | +6 min | +6 min |
| Tue 15 Sept | 73251 07:49 | +5 min | +5 min |
| Mon 14 Sept | 74233 07:13 | 0 min | — |
| Fri 11 Sept | 73251 07:49 | +5 min | +5 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.