South Western Railway 871A37
View line South Western Railway
Alerts for train 871A37
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
83%
20/24 runs under 3 min
RT coverage: 24 full · 0 partial · 0 no data
On-time · 90 days
66%
54/82 runs under 3 min
RT coverage: 82 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: 0 min
P90
+16min
9 in 10 runs arrive with less than this
30 days: +13 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
- Tue 20 Oct Max en route +26 min · last fix heading to Alton +26 min
- Tue 29 Sept Max en route +25 min · last fix heading to Alton +25 min
- Mon 7 Sept Max en route +24 min · last fix heading to Alton +24 min
- Mon 24 Aug Max en route +24 min · last fix heading to Alton +24 min
- Thu 20 Aug Max en route +24 min · last fix heading to Alton +24 min
Distribution · 90 days
82 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 6% · 5
- On time 60% · 49
- 3–10 min 20% · 16
- 10–30 min 15% · 12
- 30+ min 0% · 0
On-time by weekday
- 58% M n=12
- 69% T n=13
- 85% W n=13
- 85% T n=13
- 69% F n=13
- 57% S n=7
- 27% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 30 Oct | Alton 14:44 | −2 min | +1 min |
| Thu 29 Oct | Farnham 14:44 | −3 min | +3 min |
| Wed 28 Oct | Alton 14:46 | 0 min | +3 min |
| Tue 27 Oct | Alton 14:47 | 0 min | +2 min |
| Mon 26 Oct | Alton 14:51 | +5 min | +8 min |
| Sun 25 Oct | Clapham Jn. C.S. 16:11 | +17 min | +18 min |
| Fri 23 Oct | Alton 15:02 | +16 min | +16 min |
| Thu 22 Oct | Alton 14:47 | +1 min | +4 min |
| Wed 21 Oct | Alton 14:45 | −1 min | +2 min |
| Tue 20 Oct | Alton 15:13 | +26 min | +26 min |
| Mon 19 Oct | Alton 14:45 | −1 min | +1 min |
| Sun 18 Oct | New Cross Gate 15:56 | +1 min | +2 min |
| Sat 17 Oct | Alton 14:46 | 0 min | +2 min |
| Fri 16 Oct | Alton 14:45 | −1 min | +3 min |
| Thu 15 Oct | Alton 14:46 | 0 min | +4 min |
| Wed 14 Oct | Alton 14:44 | −2 min | +1 min |
| Tue 13 Oct | Alton 14:46 | 0 min | +3 min |
| Mon 12 Oct | Alton 14:47 | 0 min | +2 min |
| Fri 9 Oct | Alton 14:45 | −2 min | +1 min |
| Thu 8 Oct | Alton 14:46 | 0 min | — |
| Wed 7 Oct | Alton 14:47 | 0 min | +2 min |
| Tue 6 Oct | Alton 14:45 | −2 min | +1 min |
| Mon 5 Oct | Alton 14:47 | 0 min | +2 min |
| Sun 4 Oct | 87230 16:09 | +2 min | +2 min |
| Fri 2 Oct | Alton 14:48 | +1 min | +3 min |
| Thu 1 Oct | Alton 14:47 | +1 min | +10 min |
| Wed 30 Sept | Alton 14:46 | 0 min | +1 min |
| Tue 29 Sept | Alton 15:11 | +25 min | +25 min |
| Mon 28 Sept | Alton 14:51 | +4 min | +10 min |
| Sun 27 Sept | 87700 15:56 | +18 min | +18 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.