GWR 831A89
View line GWR
Alerts for train 831A89
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
40%
6/15 runs under 3 min
RT coverage: 15 full · 0 partial · 0 no data
On-time · 90 days
18%
12/67 runs under 3 min
RT coverage: 67 full · 0 partial · 0 no data
Typical delay
+8min
Median at arrival, 90 days
30 days: +4 min
P90
+21min
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
- Sat 24 Oct Max en route +68 min · last fix heading to Slough +68 min
- Sat 15 Aug Max en route +47 min · last fix heading to 73251 +46 min
- Sat 1 Aug Max en route +45 min · last fix heading to 73251 +45 min
- Mon 24 Aug Max en route +44 min · last fix heading to 73251 +44 min
- Fri 25 Sept Max en route +38 min · last fix heading to 73251 +38 min
Distribution · 90 days
67 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 18% · 12
- 3–10 min 42% · 28
- 10–30 min 31% · 21
- 30+ min 9% · 6
On-time by weekday
- 20% M n=10
- 36% T n=11
- 9% W n=11
- 0% T n=12
- 0% F n=11
- 42% S n=12
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 24 Oct | Slough 19:26 | +68 min | +68 min |
| Thu 22 Oct | Slough 18:22 | +7 min | +8 min |
| Wed 21 Oct | Maidenhead 18:20 | +4 min | +5 min |
| Tue 20 Oct | Maidenhead 18:18 | +3 min | +3 min |
| Mon 19 Oct | Maidenhead 18:16 | +1 min | +1 min |
| Sat 17 Oct | Slough 18:18 | 0 min | +5 min |
| Fri 9 Oct | Slough 18:32 | +17 min | +18 min |
| Thu 8 Oct | Slough 18:20 | +5 min | +5 min |
| Wed 7 Oct | Maidenhead 18:16 | +1 min | +2 min |
| Tue 6 Oct | Slough 18:17 | +2 min | +3 min |
| Mon 5 Oct | Slough 18:26 | +11 min | +11 min |
| Sat 3 Oct | 73251 18:21 | +2 min | +6 min |
| Fri 2 Oct | 73251 18:31 | +16 min | +16 min |
| Thu 1 Oct | 73251 18:29 | +14 min | +60 min |
| Tue 29 Sept | 73251 18:16 | +1 min | +2 min |
| Sat 26 Sept | 73251 18:20 | +1 min | +5 min |
| Fri 25 Sept | 73251 18:53 | +38 min | +38 min |
| Thu 24 Sept | 73251 18:23 | +8 min | +8 min |
| Wed 23 Sept | 73251 18:23 | +7 min | +8 min |
| Tue 22 Sept | 73251 18:15 | 0 min | +1 min |
| Mon 21 Sept | 73251 18:15 | 0 min | +3 min |
| Sat 19 Sept | 73251 18:19 | 0 min | +4 min |
| Fri 18 Sept | 73251 18:27 | +12 min | +17 min |
| Thu 17 Sept | 73251 18:20 | +5 min | +5 min |
| Wed 16 Sept | 73251 18:19 | +4 min | +4 min |
| Tue 15 Sept | 73251 18:17 | +2 min | +3 min |
| Mon 14 Sept | 73251 18:26 | +10 min | +11 min |
| Sat 12 Sept | 73251 18:27 | +6 min | +6 min |
| Fri 11 Sept | 73251 18:20 | +5 min | +5 min |
| Thu 10 Sept | 73251 18:20 | +5 min | +8 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.