GWR 831A40
View line GWR
Alerts for train 831A40
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
0%
0/5 runs under 3 min
RT coverage: 5 full · 0 partial · 0 no data
On-time · 90 days
6%
1/17 runs under 3 min
RT coverage: 17 full · 0 partial · 0 no data
Typical delay
+30min
Median at arrival, 90 days
30 days: +16 min
P90
+61min
9 in 10 runs arrive with less than this
30 days: +81 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 3 Oct Max en route +87 min · last fix heading to 74305 +86 min
- Sun 4 Oct Max en route +89 min · last fix heading to 73251 +74 min
- Sat 5 Sept Max en route +57 min · last fix heading to 73775 +53 min
- Sun 6 Sept Max en route +54 min · last fix heading to 73251 +52 min
- Sun 2 Aug Max en route +39 min · last fix heading to — +39 min
Distribution · 90 days
17 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 6% · 1
- On time 0% · 0
- 3–10 min 18% · 3
- 10–30 min 18% · 3
- 30+ min 59% · 10
On-time by weekday
- — M n=0
- — T n=0
- — W n=0
- — T n=0
- — F n=0
- 8% S n=12
- 0% S n=5
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 10 Oct | Slough 00:48 | +15 min | +16 min |
| Sun 4 Oct | 73251 01:47 | +74 min | +89 min |
| Sat 3 Oct | 74305 00:59 | +86 min | +87 min |
| Sat 26 Sept | 73251 00:37 | +4 min | +6 min |
| Sat 19 Sept | 73251 00:48 | +16 min | +19 min |
| Sun 6 Sept | 73251 01:24 | +52 min | +54 min |
| Sat 5 Sept | 73775 00:59 | +53 min | +57 min |
| Sat 29 Aug | 73251 00:41 | +9 min | +11 min |
| Sat 22 Aug | 73251 00:39 | +5 min | +8 min |
| Sun 16 Aug | — 01:02 | +34 min | +34 min |
| Sat 15 Aug | 73251 00:59 | +34 min | +34 min |
| Sun 9 Aug | — 01:03 | +30 min | +30 min |
| Sat 8 Aug | 73251 00:59 | +30 min | +34 min |
| Sun 2 Aug | — 01:11 | +39 min | +39 min |
| Sat 1 Aug | 73251 00:59 | +38 min | +38 min |
| Sat 25 Jul | 73251 00:30 | −5 min | +4 min |
| Sat 18 Jul | 73251 00:43 | +11 min | +23 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.