GWR 812K12
View line GWR
Alerts for train 812K12
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.
✓ Today’s run finished
Today, last fix heading to Portway Park & Ride at 08:50 +3 min
The mini-map returns when the train runs
On-time · 30 days
35%
9/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
61%
41/67 runs under 3 min
RT coverage: 67 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +4 min
P90
+7min
9 in 10 runs arrive with less than this
30 days: +10 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
- Thu 24 Sept Max en route +26 min · last fix heading to Sea Mills +25 min
- Mon 28 Sept Max en route +16 min · last fix heading to Avonmouth +16 min
- Tue 20 Oct Max en route +10 min · last fix heading to Shirehampton +10 min
- Fri 2 Oct Max en route +10 min · last fix heading to Avonmouth +10 min
- Wed 9 Sept Max en route +10 min · last fix heading to Avonmouth +10 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 61% · 41
- 3–10 min 31% · 21
- 10–30 min 7% · 5
- 30+ min 0% · 0
On-time by weekday
- 55% M n=11
- 45% T n=11
- 55% W n=11
- 40% T n=10
- 67% F n=12
- 100% S n=12
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 21 Oct | Portway Park & Ride 08:50 | +3 min | +3 min |
| Tue 20 Oct | Shirehampton 08:58 | +10 min | +10 min |
| Mon 19 Oct | Portway Park & Ride 08:50 | +3 min | +3 min |
| Sat 17 Oct | Portway Park & Ride 08:28 | 0 min | — |
| Fri 16 Oct | Avonmouth 08:50 | +3 min | +3 min |
| Thu 15 Oct | Portway Park & Ride 08:52 | +5 min | +5 min |
| Wed 14 Oct | Sea Mills 08:53 | +6 min | +6 min |
| Tue 13 Oct | Shirehampton 08:54 | +6 min | +6 min |
| Mon 12 Oct | Shirehampton 08:49 | +2 min | +2 min |
| Sat 10 Oct | Sea Mills 08:27 | −1 min | — |
| Fri 9 Oct | Sea Mills 08:51 | +4 min | +4 min |
| Thu 8 Oct | Sea Mills 08:55 | +7 min | +7 min |
| Wed 7 Oct | Sea Mills 08:50 | +2 min | +2 min |
| Tue 6 Oct | Shirehampton 08:54 | +7 min | +7 min |
| Mon 5 Oct | Avonmouth 08:52 | +5 min | +5 min |
| Sat 3 Oct | 81225 08:28 | 0 min | +1 min |
| Fri 2 Oct | Avonmouth 08:57 | +10 min | +10 min |
| Thu 1 Oct | Shirehampton 08:51 | +3 min | +4 min |
| Wed 30 Sept | Avonmouth 08:49 | +2 min | +2 min |
| Tue 29 Sept | Sea Mills 08:51 | +4 min | +4 min |
| Mon 28 Sept | Avonmouth 09:04 | +16 min | +16 min |
| Sat 26 Sept | 81225 08:27 | 0 min | +1 min |
| Fri 25 Sept | Sea Mills 08:50 | +2 min | +2 min |
| Thu 24 Sept | Sea Mills 09:00 | +25 min | +26 min |
| Wed 23 Sept | Avonmouth 08:53 | +6 min | +6 min |
| Tue 22 Sept | Sea Mills 08:48 | 0 min | +1 min |
| Mon 21 Sept | Avonmouth 08:50 | +3 min | +3 min |
| Sat 19 Sept | 81225 08:27 | −1 min | — |
| Fri 18 Sept | Sea Mills 08:48 | 0 min | — |
| Thu 17 Sept | Avonmouth 08:51 | +4 min | +4 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.