GWR 811A14
View line GWR
Alerts for train 811A14
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
44%
11/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
46%
38/82 runs under 3 min
RT coverage: 82 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +3 min
P90
+20min
9 in 10 runs arrive with less than this
30 days: +14 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
- Mon 14 Sept Max en route +115 min · last fix heading to 73251 +115 min
- Wed 23 Sept Max en route +62 min · last fix heading to 73251 +59 min
- Wed 30 Sept Max en route +53 min · last fix heading to 73799 +52 min
- Sun 20 Sept Max en route +43 min · last fix heading to 73251 +43 min
- Mon 12 Oct Max en route +39 min · last fix heading to Slough +39 min
Distribution · 90 days
82 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 46% · 38
- 3–10 min 34% · 28
- 10–30 min 13% · 11
- 30+ min 6% · 5
On-time by weekday
- 55% M n=11
- 67% T n=12
- 42% W n=12
- 58% T n=12
- 50% F n=12
- 15% S n=13
- 40% S n=10
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 7 Nov | Slough 11:09 | +5 min | +5 min |
| Fri 6 Nov | Slough 11:09 | +3 min | +4 min |
| Thu 5 Nov | Maidenhead 11:09 | +3 min | +5 min |
| Wed 4 Nov | Maidenhead 11:08 | 0 min | +1 min |
| Tue 3 Nov | Slough 11:07 | 0 min | +1 min |
| Mon 2 Nov | Slough 11:08 | +1 min | +1 min |
| Sun 1 Nov | Slough 13:10 | +1 min | +1 min |
| Sat 31 Oct | Slough 11:41 | +26 min | +28 min |
| Fri 30 Oct | Slough 11:19 | +4 min | +8 min |
| Thu 29 Oct | Maidenhead 11:16 | +1 min | +4 min |
| Sun 25 Oct | Maidenhead 13:18 | +4 min | +4 min |
| Sat 24 Oct | Slough 11:24 | +11 min | +11 min |
| Fri 23 Oct | Maidenhead 11:14 | −1 min | +1 min |
| Thu 22 Oct | Slough 11:18 | +3 min | +4 min |
| Wed 21 Oct | Maidenhead 11:31 | +16 min | +17 min |
| Tue 20 Oct | Maidenhead 11:21 | +6 min | +6 min |
| Mon 19 Oct | Maidenhead 11:21 | +6 min | +6 min |
| Sun 18 Oct | Maidenhead 13:22 | +4 min | +7 min |
| Sat 17 Oct | Slough 11:22 | +9 min | +10 min |
| Fri 16 Oct | Slough 11:13 | −1 min | — |
| Thu 15 Oct | Slough 11:16 | +2 min | +2 min |
| Wed 14 Oct | Maidenhead 11:15 | +1 min | +3 min |
| Tue 13 Oct | Maidenhead 11:14 | 0 min | +3 min |
| Mon 12 Oct | Slough 11:55 | +39 min | +39 min |
| Sat 10 Oct | Slough 11:15 | +2 min | +2 min |
| Fri 9 Oct | Slough 11:16 | 0 min | +1 min |
| Thu 8 Oct | Maidenhead 11:15 | 0 min | +1 min |
| Wed 7 Oct | Maidenhead 11:18 | +2 min | +3 min |
| Tue 6 Oct | Maidenhead 11:17 | +3 min | +5 min |
| Mon 5 Oct | 73251 11:15 | 0 min | +2 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.