South Western Railway 871A55
View line South Western Railway
Alerts for train 871A55
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
62%
16/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
44%
37/85 runs under 3 min
RT coverage: 85 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +2 min
P90
+20min
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 +51 min · last fix heading to Alton +50 min
- Fri 24 Jul Max en route +47 min · last fix heading to 86912 +47 min
- Fri 18 Sept Max en route +43 min · last fix heading to Alton +43 min
- Wed 23 Sept Max en route +40 min · last fix heading to Alton +36 min
- Mon 27 Jul Max en route +27 min · last fix heading to Alton +26 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 44% · 37
- 3–10 min 33% · 28
- 10–30 min 19% · 16
- 30+ min 5% · 4
On-time by weekday
- 38% M n=13
- 54% T n=13
- 42% W n=12
- 67% T n=12
- 38% F n=13
- 50% S n=10
- 17% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 20 Oct | Alton 19:20 | +2 min | +4 min |
| Mon 19 Oct | Alton 19:21 | +3 min | +6 min |
| Sun 18 Oct | Sydenham 20:27 | +2 min | +5 min |
| Sat 17 Oct | Alton 19:39 | +19 min | +20 min |
| Fri 16 Oct | Alton 19:23 | +5 min | +9 min |
| Thu 15 Oct | Alton 19:17 | −1 min | +3 min |
| Wed 14 Oct | Alton 19:18 | −1 min | +3 min |
| Tue 13 Oct | Alton 19:18 | 0 min | +3 min |
| Mon 12 Oct | Alton 19:25 | +7 min | +7 min |
| Sun 11 Oct | East Croydon 20:49 | +25 min | +26 min |
| Fri 9 Oct | Alton 19:20 | +2 min | +7 min |
| Thu 8 Oct | Alton 19:21 | +2 min | +9 min |
| Wed 7 Oct | Alton 19:24 | +6 min | +9 min |
| Tue 6 Oct | Alton 19:18 | 0 min | +3 min |
| Mon 5 Oct | Alton 19:17 | −1 min | +1 min |
| Sun 4 Oct | 87230 20:31 | −1 min | +1 min |
| Fri 2 Oct | Alton 19:17 | −1 min | +1 min |
| Thu 1 Oct | Alton 19:37 | +18 min | +18 min |
| Wed 30 Sept | Alton 19:23 | +5 min | +8 min |
| Tue 29 Sept | Alton 19:23 | +4 min | +6 min |
| Mon 28 Sept | Alton 19:21 | +2 min | +2 min |
| Sat 26 Sept | Alton 19:17 | −1 min | +2 min |
| Fri 25 Sept | Alton 19:18 | 0 min | +3 min |
| Thu 24 Sept | Alton 19:20 | +2 min | +5 min |
| Wed 23 Sept | Alton 19:55 | +36 min | +40 min |
| Tue 22 Sept | Alton 19:20 | +1 min | +13 min |
| Mon 21 Sept | Alton 19:37 | +19 min | +19 min |
| Sun 20 Sept | 87230 20:31 | +7 min | +8 min |
| Fri 18 Sept | Alton 20:00 | +43 min | +43 min |
| Thu 17 Sept | Alton 19:28 | +10 min | +10 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.