GWR 811F01
View line GWR
Alerts for train 811F01
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
30%
6/20 runs under 3 min
RT coverage: 20 full · 0 partial · 0 no data
On-time · 90 days
60%
33/55 runs under 3 min
RT coverage: 55 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +6 min
P90
+13min
9 in 10 runs arrive with less than this
30 days: +17 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 16 Oct Max en route +30 min · last fix heading to Portsmouth Harbour +30 min
- Mon 28 Sept Max en route +30 min · last fix heading to Portsmouth Harbour +30 min
- Wed 12 Aug Max en route +25 min · last fix heading to Portsmouth Harbour +24 min
- Wed 19 Aug Max en route +19 min · last fix heading to Portsmouth Harbour +19 min
- Thu 17 Sept Max en route +18 min · last fix heading to Portsmouth Harbour +16 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 58% · 32
- 3–10 min 27% · 15
- 10–30 min 9% · 5
- 30+ min 4% · 2
On-time by weekday
- 56% M n=9
- 75% T n=12
- 45% W n=11
- 64% T n=11
- 58% F n=12
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 20 Oct | Portsmouth Harbour 14:39 | +9 min | +10 min |
| Mon 19 Oct | Portsmouth Harbour 07:53 | +9 min | +9 min |
| Fri 16 Oct | Portsmouth Harbour 08:15 | +30 min | +30 min |
| Thu 15 Oct | Portsmouth Harbour 14:50 | +3 min | +5 min |
| Wed 14 Oct | Portsmouth Harbour 07:50 | +5 min | +6 min |
| Tue 13 Oct | Portsmouth Harbour 07:50 | +5 min | +6 min |
| Mon 12 Oct | Portsmouth Harbour 07:54 | +10 min | +11 min |
| Fri 9 Oct | Portsmouth Harbour 07:53 | +8 min | +9 min |
| Thu 8 Oct | Portsmouth Harbour 07:46 | +1 min | +3 min |
| Wed 7 Oct | Portsmouth Harbour 07:46 | +1 min | +4 min |
| Tue 6 Oct | — 05:21 | −2 min | — |
| Fri 2 Oct | Portsmouth Harbour 07:46 | +2 min | +4 min |
| Thu 1 Oct | Portsmouth Harbour 14:38 | +7 min | +10 min |
| Wed 30 Sept | Portsmouth Harbour 07:52 | +7 min | +8 min |
| Tue 29 Sept | Portsmouth Harbour 07:50 | +5 min | +6 min |
| Mon 28 Sept | Portsmouth Harbour 08:15 | +30 min | +30 min |
| Fri 25 Sept | Portsmouth Harbour 08:00 | +15 min | +16 min |
| Thu 24 Sept | Portsmouth Harbour 07:45 | 0 min | +3 min |
| Wed 23 Sept | Portsmouth Harbour 07:54 | +9 min | +11 min |
| Tue 22 Sept | Portsmouth Harbour 07:44 | 0 min | +1 min |
| Fri 18 Sept | Portsmouth Harbour 07:45 | 0 min | +3 min |
| Thu 17 Sept | Portsmouth Harbour 08:01 | +16 min | +18 min |
| Wed 16 Sept | Portsmouth Harbour 07:48 | +4 min | +6 min |
| Tue 15 Sept | Portsmouth Harbour 07:44 | 0 min | +1 min |
| Mon 14 Sept | Portsmouth Harbour 07:47 | +3 min | +5 min |
| Fri 11 Sept | Portsmouth Harbour 07:44 | 0 min | — |
| Thu 10 Sept | Portsmouth Harbour 07:45 | 0 min | +3 min |
| Wed 9 Sept | Portsmouth Harbour 07:45 | 0 min | — |
| Tue 8 Sept | Portsmouth Harbour 07:44 | −1 min | +1 min |
| Mon 7 Sept | Portsmouth Harbour 07:44 | 0 min | +1 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.