South Western Railway 871A27
Alerts for train 871A27
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.
Running now · updated 12:18
Running now 0 min
Today it is running no worse than usual: typical arrival delay is 0 min; 77% of the last 26 runs arrived on time.
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 +27 min · last fix heading to Alton +25 min
- Wed 26 Aug Max en route +22 min · last fix heading to Alton +22 min
- Tue 11 Aug Max en route +22 min · last fix heading to Alton +22 min
- Wed 21 Oct Max en route +21 min · last fix heading to Alton +21 min
- Mon 24 Aug Max en route +13 min · last fix heading to Alton +12 min
Distribution · 90 days
85 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 46% · 39
- 3–10 min 45% · 38
- 10–30 min 9% · 8
- 30+ min 0% · 0
On-time by weekday
- 62% M n=13
- 46% T n=13
- 54% W n=13
- 38% T n=13
- 58% F n=12
- 56% S n=9
- 8% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 29 Oct | Alton 12:18 | 0 min | +3 min |
| Wed 28 Oct | Alton 12:17 | −1 min | +1 min |
| Tue 27 Oct | Alton 12:18 | 0 min | +5 min |
| Mon 26 Oct | Alton 12:20 | +2 min | +3 min |
| Fri 23 Oct | Alton 12:17 | −1 min | +1 min |
| Thu 22 Oct | Alton 12:18 | −1 min | +4 min |
| Wed 21 Oct | Alton 12:39 | +21 min | +21 min |
| Tue 20 Oct | Alton 12:18 | 0 min | +1 min |
| Mon 19 Oct | Alton 12:18 | 0 min | +3 min |
| Sun 18 Oct | Sydenham 13:26 | +1 min | +1 min |
| Sat 17 Oct | Alton 12:19 | 0 min | +2 min |
| Fri 16 Oct | Alton 12:24 | +6 min | +6 min |
| Thu 15 Oct | Alton 12:18 | 0 min | +1 min |
| Wed 14 Oct | Alton 12:20 | +2 min | +4 min |
| Tue 13 Oct | Alton 12:20 | +2 min | +2 min |
| Mon 12 Oct | Alton 12:21 | +2 min | +7 min |
| Sun 11 Oct | Clapham Jn. C.S. 13:36 | +10 min | +12 min |
| Fri 9 Oct | Alton 12:21 | +3 min | +5 min |
| Thu 8 Oct | Alton 12:18 | 0 min | +1 min |
| Wed 7 Oct | Alton 12:18 | −1 min | +2 min |
| Tue 6 Oct | Alton 12:18 | −1 min | +2 min |
| Mon 5 Oct | Alton 12:18 | 0 min | +1 min |
| Sun 4 Oct | 87230 13:38 | +6 min | +6 min |
| Fri 2 Oct | Alton 12:18 | 0 min | +3 min |
| Thu 1 Oct | Alton 12:22 | +4 min | +4 min |
| Wed 30 Sept | Alton 12:18 | 0 min | +4 min |
| Tue 29 Sept | Alton 12:25 | +7 min | +7 min |
| Mon 28 Sept | Alton 12:21 | +2 min | +7 min |
| Sun 27 Sept | 87230 13:28 | +4 min | +6 min |
| Sat 26 Sept | Alton 12:22 | +3 min | +6 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.