GWR 811A24
View line GWR
Alerts for train 811A24
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
36%
10/28 runs under 3 min
RT coverage: 28 full · 0 partial · 0 no data
On-time · 90 days
35%
29/84 runs under 3 min
RT coverage: 84 full · 0 partial · 0 no data
Typical delay
+5min
Median at arrival, 90 days
30 days: +4 min
P90
+21min
9 in 10 runs arrive with less than this
30 days: +22 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
- Sat 5 Sept Max en route +80 min · last fix heading to 73111 +80 min
- Sun 20 Sept Max en route +55 min · last fix heading to 73251 +55 min
- Tue 1 Sept Max en route +52 min · last fix heading to 74233 +52 min
- Wed 14 Oct Max en route +50 min · last fix heading to Maidenhead +50 min
- Sat 24 Oct Max en route +24 min · last fix heading to Maidenhead +24 min
Distribution · 90 days
84 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 35% · 29
- 3–10 min 37% · 31
- 10–30 min 24% · 20
- 30+ min 5% · 4
On-time by weekday
- 45% M n=11
- 42% T n=12
- 27% W n=11
- 31% T n=13
- 42% F n=12
- 23% S n=13
- 33% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 25 Oct | Maidenhead 17:52 | +3 min | +3 min |
| Sat 24 Oct | Maidenhead 16:37 | +24 min | +24 min |
| Fri 23 Oct | Slough 16:39 | +24 min | +25 min |
| Thu 22 Oct | Slough 16:17 | +2 min | +4 min |
| Wed 21 Oct | Maidenhead 16:17 | +2 min | +2 min |
| Tue 20 Oct | Maidenhead 16:17 | +2 min | +2 min |
| Mon 19 Oct | Maidenhead 16:15 | 0 min | +3 min |
| Sun 18 Oct | Slough 18:10 | +21 min | +21 min |
| Sat 17 Oct | Maidenhead 16:19 | +6 min | +6 min |
| Fri 16 Oct | Slough 16:22 | +7 min | +7 min |
| Thu 15 Oct | Slough 16:19 | +4 min | +4 min |
| Wed 14 Oct | Maidenhead 17:05 | +50 min | +50 min |
| Tue 13 Oct | Slough 16:30 | +15 min | +15 min |
| Mon 12 Oct | Maidenhead 16:24 | +9 min | +9 min |
| Sun 11 Oct | Maidenhead 17:44 | +1 min | +5 min |
| Sat 10 Oct | Slough 16:14 | +1 min | +2 min |
| Fri 9 Oct | Maidenhead 16:15 | 0 min | +3 min |
| Thu 8 Oct | Slough 16:19 | +4 min | +8 min |
| Wed 7 Oct | Maidenhead 16:24 | +8 min | +8 min |
| Tue 6 Oct | Slough 16:23 | +8 min | +9 min |
| Mon 5 Oct | Maidenhead 16:15 | 0 min | +5 min |
| Sun 4 Oct | 73251 17:48 | +3 min | +6 min |
| Sat 3 Oct | 73251 16:14 | +1 min | +2 min |
| Fri 2 Oct | 73251 16:24 | +9 min | +10 min |
| Thu 1 Oct | 73251 16:23 | +8 min | +8 min |
| Wed 30 Sept | 73251 16:20 | +4 min | +11 min |
| Tue 29 Sept | 73251 16:16 | +1 min | +1 min |
| Mon 28 Sept | 73251 16:20 | +4 min | +4 min |
| Sun 27 Sept | 73251 17:51 | +2 min | +10 min |
| Sat 26 Sept | 73251 16:19 | +6 min | +9 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.