South Western Railway 871A57
View line South Western Railway
Alerts for train 871A57
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
54%
13/24 runs under 3 min
RT coverage: 24 full · 0 partial · 0 no data
On-time · 90 days
42%
33/79 runs under 3 min
RT coverage: 79 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +2 min
P90
+21min
9 in 10 runs arrive with less than this
30 days: +19 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 7 Aug Max en route +93 min · last fix heading to Alton +93 min
- Fri 23 Oct Max en route +74 min · last fix heading to Farnham +71 min
- Mon 17 Aug Max en route +32 min · last fix heading to Alton +32 min
- Sun 13 Sept Max en route +28 min · last fix heading to 87230 +28 min
- Fri 18 Sept Max en route +24 min · last fix heading to Alton +24 min
Distribution · 90 days
79 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 3% · 2
- On time 39% · 31
- 3–10 min 33% · 26
- 10–30 min 22% · 17
- 30+ min 4% · 3
On-time by weekday
- 46% M n=13
- 58% T n=12
- 45% W n=11
- 33% T n=12
- 46% F n=13
- 38% S n=8
- 20% S n=10
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 2 Nov | Alton 19:43 | +4 min | +8 min |
| Sun 1 Nov | Clapham Jn. C.S. 20:53 | +7 min | +7 min |
| Fri 30 Oct | Alton 19:53 | +6 min | +7 min |
| Thu 29 Oct | Alton 19:50 | +3 min | +4 min |
| Wed 28 Oct | Alton 20:09 | +22 min | +22 min |
| Tue 27 Oct | Alton 19:50 | +2 min | +3 min |
| Mon 26 Oct | Alton 20:07 | +19 min | +19 min |
| Sun 25 Oct | Clapham Jn. C.S. 21:02 | +8 min | +8 min |
| Fri 23 Oct | Farnham 20:45 | +71 min | +74 min |
| Wed 21 Oct | Alton 19:50 | +2 min | +7 min |
| Tue 20 Oct | Alton 19:46 | −1 min | +2 min |
| Mon 19 Oct | Alton 20:06 | +18 min | +20 min |
| Sun 18 Oct | New Cross Gate 20:56 | 0 min | +3 min |
| Sat 17 Oct | Alton 20:09 | +19 min | +19 min |
| Fri 16 Oct | Alton 19:48 | +1 min | +3 min |
| Thu 15 Oct | Alton 19:47 | −1 min | +3 min |
| Wed 14 Oct | Alton 19:47 | 0 min | +5 min |
| Tue 13 Oct | Alton 19:47 | −1 min | +4 min |
| Mon 12 Oct | Alton 19:47 | 0 min | +3 min |
| Fri 9 Oct | Alton 19:45 | −2 min | +1 min |
| Thu 8 Oct | Alton 19:47 | 0 min | +5 min |
| Wed 7 Oct | Alton 20:07 | +19 min | +20 min |
| Tue 6 Oct | Alton 19:47 | 0 min | +5 min |
| Mon 5 Oct | Alton 19:50 | +2 min | +3 min |
| Sun 4 Oct | 87230 21:05 | −2 min | +1 min |
| Fri 2 Oct | Alton 19:48 | +1 min | +4 min |
| Thu 1 Oct | Alton 20:00 | +12 min | +12 min |
| Wed 30 Sept | Alton 20:08 | +20 min | +20 min |
| Tue 29 Sept | Alton 20:08 | +20 min | +20 min |
| Mon 28 Sept | Alton 19:50 | +2 min | +3 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.