GWR 811A13
View line GWR
Alerts for train 811A13
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
32%
6/19 runs under 3 min
RT coverage: 19 full · 0 partial · 0 no data
On-time · 90 days
37%
25/67 runs under 3 min
RT coverage: 67 full · 0 partial · 0 no data
Typical delay
+4min
Median at arrival, 90 days
30 days: +6 min
P90
+22min
9 in 10 runs arrive with less than this
30 days: +24 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 27 Oct Max en route +37 min · last fix heading to Slough +30 min
- Sun 11 Oct Max en route +30 min · last fix heading to Slough +30 min
- Mon 7 Sept Max en route +32 min · last fix heading to 73251 +30 min
- Wed 23 Sept Max en route +30 min · last fix heading to 74331 +29 min
- Mon 14 Sept Max en route +27 min · last fix heading to 74233 +27 min
Distribution · 90 days
67 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 9% · 6
- On time 28% · 19
- 3–10 min 36% · 24
- 10–30 min 22% · 15
- 30+ min 4% · 3
On-time by weekday
- 42% M n=12
- 50% T n=10
- 58% W n=12
- 20% T n=10
- 50% F n=12
- — S n=0
- 0% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 30 Oct | Slough 11:00 | +7 min | +22 min |
| Thu 29 Oct | Slough 11:03 | +10 min | +10 min |
| Wed 28 Oct | Slough 10:56 | +3 min | +3 min |
| Tue 27 Oct | Slough 11:23 | +30 min | +37 min |
| Mon 26 Oct | Slough 11:04 | +11 min | +11 min |
| Sun 25 Oct | Maidenhead 13:14 | +22 min | +22 min |
| Fri 23 Oct | Maidenhead 10:50 | −4 min | +3 min |
| Wed 21 Oct | Maidenhead 10:50 | −2 min | +3 min |
| Tue 20 Oct | Slough 11:06 | +13 min | +13 min |
| Mon 19 Oct | Maidenhead 10:58 | +6 min | +6 min |
| Sun 18 Oct | Maidenhead 12:57 | +8 min | +14 min |
| Sun 11 Oct | Slough 13:15 | +30 min | +30 min |
| Fri 9 Oct | Slough 10:52 | −1 min | +2 min |
| Thu 8 Oct | Maidenhead 10:56 | +3 min | +3 min |
| Wed 7 Oct | Slough 10:53 | −1 min | +4 min |
| Tue 6 Oct | Slough 11:02 | +9 min | +10 min |
| Mon 5 Oct | 73251 10:53 | 0 min | +2 min |
| Sun 4 Oct | 73251 12:50 | +5 min | +7 min |
| Fri 2 Oct | 73251 10:55 | +2 min | +5 min |
| Wed 30 Sept | 73251 10:56 | +3 min | +4 min |
| Tue 29 Sept | 73251 10:52 | −1 min | +2 min |
| Mon 28 Sept | 73251 10:55 | +2 min | +5 min |
| Sun 27 Sept | 73251 12:56 | +7 min | +7 min |
| Fri 25 Sept | 73251 11:06 | +13 min | +13 min |
| Thu 24 Sept | 73251 10:57 | +4 min | +5 min |
| Wed 23 Sept | 74331 10:38 | +29 min | +30 min |
| Tue 22 Sept | 73251 10:56 | +3 min | +4 min |
| Mon 21 Sept | 73251 11:02 | +9 min | +9 min |
| Sun 20 Sept | 73251 13:00 | +9 min | +9 min |
| Fri 18 Sept | 73251 10:57 | +4 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.