South Western Railway 821O40
View line South Western Railway
Alerts for train 821O40
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line South Western Railway.
The mini-map returns when the train runs
On-time · 30 days
52%
13/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
64%
49/77 runs under 3 min
RT coverage: 77 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +2 min
P90
+8min
9 in 10 runs arrive with less than this
30 days: +9 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
- Fri 2 Oct Max en route +89 min · last fix heading to 82121 +89 min
- Thu 22 Oct Max en route +37 min · last fix heading to Warminster +37 min
- Mon 21 Sept Max en route +23 min · last fix heading to 82121 +23 min
- Wed 26 Aug Max en route +18 min · last fix heading to 82121 +16 min
- Tue 18 Aug Max en route +13 min · last fix heading to 82121 +13 min
Distribution · 90 days
77 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 4% · 3
- On time 60% · 46
- 3–10 min 29% · 22
- 10–30 min 5% · 4
- 30+ min 3% · 2
On-time by weekday
- 54% M n=13
- 54% T n=13
- 54% W n=13
- 62% T n=13
- 69% F n=13
- 92% S n=12
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 31 Oct | Warminster 12:19 | −1 min | — |
| Fri 30 Oct | Warminster 12:20 | −1 min | +3 min |
| Thu 29 Oct | Warminster 12:22 | +1 min | +3 min |
| Wed 28 Oct | Warminster 12:30 | +9 min | +12 min |
| Tue 27 Oct | Warminster 12:24 | +3 min | +3 min |
| Mon 26 Oct | Warminster 12:23 | +3 min | +3 min |
| Sat 24 Oct | Warminster 12:21 | 0 min | +2 min |
| Fri 23 Oct | Bruton 11:30 | +1 min | +1 min |
| Thu 22 Oct | Warminster 12:58 | +37 min | +37 min |
| Wed 21 Oct | Warminster 12:20 | 0 min | +2 min |
| Tue 20 Oct | Warminster 12:20 | 0 min | +2 min |
| Mon 19 Oct | Warminster 12:20 | −1 min | +2 min |
| Sat 17 Oct | Warminster 12:24 | +3 min | +5 min |
| Fri 16 Oct | Warminster 12:24 | +3 min | +5 min |
| Thu 15 Oct | Warminster 12:20 | 0 min | +1 min |
| Wed 14 Oct | Warminster 12:28 | +8 min | +8 min |
| Tue 13 Oct | Warminster 12:23 | +2 min | +4 min |
| Mon 12 Oct | Warminster 12:27 | +6 min | +6 min |
| Fri 9 Oct | Warminster 12:25 | +5 min | +5 min |
| Thu 8 Oct | Warminster 12:21 | 0 min | +1 min |
| Wed 7 Oct | Warminster 12:23 | +2 min | +2 min |
| Tue 6 Oct | Warminster 12:26 | +6 min | +6 min |
| Mon 5 Oct | Warminster 12:26 | +5 min | +6 min |
| Sat 3 Oct | 82121 12:18 | −3 min | — |
| Fri 2 Oct | 82121 13:50 | +89 min | +89 min |
| Thu 1 Oct | 82121 12:31 | +10 min | +11 min |
| Wed 30 Sept | 82121 12:20 | −1 min | +2 min |
| Tue 29 Sept | 82121 12:22 | +2 min | +2 min |
| Mon 28 Sept | 82121 12:23 | +2 min | +6 min |
| Sat 26 Sept | 82121 12:21 | 0 min | +1 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.