GWR 831A37
View line GWR
Alerts for train 831A37
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%
7/23 runs under 3 min
RT coverage: 23 full · 0 partial · 0 no data
On-time · 90 days
30%
21/70 runs under 3 min
RT coverage: 70 full · 0 partial · 0 no data
Typical delay
+7min
Median at arrival, 90 days
30 days: +4 min
P90
+36min
9 in 10 runs arrive with less than this
30 days: +33 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
- Wed 23 Sept Max en route +54 min · last fix heading to 73251 +54 min
- Wed 29 Jul Max en route +47 min · last fix heading to 73251 +47 min
- Tue 21 Jul Max en route +43 min · last fix heading to 73251 +43 min
- Wed 19 Aug Max en route +41 min · last fix heading to 73251 +41 min
- Fri 21 Aug Max en route +40 min · last fix heading to 73251 +39 min
Distribution · 90 days
70 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 30% · 21
- 3–10 min 30% · 21
- 10–30 min 24% · 17
- 30+ min 16% · 11
On-time by weekday
- 45% M n=11
- 55% T n=11
- 31% W n=13
- 25% T n=12
- 0% F n=12
- 27% S n=11
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 10 Oct | Maidenhead 22:46 | 0 min | +2 min |
| Fri 9 Oct | Slough 22:46 | +3 min | +3 min |
| Thu 8 Oct | Slough 22:49 | +6 min | +6 min |
| Wed 7 Oct | Slough 22:42 | −1 min | +3 min |
| Tue 6 Oct | Maidenhead 22:44 | +1 min | +3 min |
| Mon 5 Oct | Maidenhead 22:45 | +2 min | +7 min |
| Sat 3 Oct | 73251 22:46 | +1 min | +3 min |
| Fri 2 Oct | 73251 22:46 | +3 min | +3 min |
| Thu 1 Oct | 73251 22:44 | +1 min | +3 min |
| Wed 30 Sept | 73251 22:48 | +5 min | +47 min |
| Tue 29 Sept | 73251 22:46 | +2 min | +7 min |
| Sat 26 Sept | 73251 22:56 | +4 min | +7 min |
| Fri 25 Sept | 73251 22:49 | +5 min | +5 min |
| Thu 24 Sept | 73251 22:54 | +11 min | +11 min |
| Wed 23 Sept | 73251 23:36 | +54 min | +54 min |
| Tue 22 Sept | 81690 21:08 | +4 min | +4 min |
| Mon 21 Sept | 73251 22:47 | +4 min | +5 min |
| Sat 19 Sept | 73251 23:23 | +38 min | +38 min |
| Fri 18 Sept | 73251 23:08 | +25 min | +25 min |
| Thu 17 Sept | 73251 22:47 | +3 min | +9 min |
| Wed 16 Sept | 73251 23:04 | +20 min | +20 min |
| Tue 15 Sept | 73251 23:00 | +16 min | +16 min |
| Mon 14 Sept | 73251 23:19 | +35 min | +39 min |
| Fri 11 Sept | 73251 23:06 | +23 min | +24 min |
| Thu 10 Sept | 73251 23:02 | +19 min | +21 min |
| Wed 9 Sept | 73251 22:43 | 0 min | +6 min |
| Tue 8 Sept | 73251 22:49 | +6 min | +6 min |
| Mon 7 Sept | 73251 22:45 | +1 min | +2 min |
| Sat 5 Sept | 73251 23:25 | +33 min | +33 min |
| Fri 4 Sept | 73251 23:19 | +36 min | +36 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.