South Western Railway 871A79
View line South Western Railway
Alerts for train 871A79
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
38%
3/8 runs under 3 min
RT coverage: 8 full · 0 partial · 0 no data
On-time · 90 days
48%
15/31 runs under 3 min
RT coverage: 31 full · 0 partial · 0 no data
Typical delay
+4min
Median at arrival, 90 days
30 days: +6 min
P90
+16min
9 in 10 runs arrive with less than this
30 days: +18 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 31 Jul Max en route +38 min · last fix heading to Surbiton +38 min
- Sat 10 Oct Max en route +32 min · last fix heading to Alton +28 min
- Sun 23 Aug Max en route +22 min · last fix heading to 86912 +22 min
- Sat 5 Sept Max en route +17 min · last fix heading to 87037 +16 min
- Fri 23 Oct Max en route +15 min · last fix heading to Alton +14 min
Distribution · 90 days
31 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 48% · 15
- 3–10 min 29% · 9
- 10–30 min 19% · 6
- 30+ min 3% · 1
On-time by weekday
- — M n=0
- — T n=0
- — W n=0
- — T n=0
- 64% F n=11
- 33% S n=12
- 50% S n=8
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 23 Oct | Alton 01:32 | +14 min | +15 min |
| Sat 17 Oct | Alton 01:23 | +7 min | +8 min |
| Fri 16 Oct | Alton 01:19 | +1 min | +3 min |
| Sat 10 Oct | Alton 01:47 | +28 min | +32 min |
| Sat 3 Oct | Alton 01:25 | +7 min | +7 min |
| Fri 2 Oct | 86912 00:59 | +5 min | +6 min |
| Sun 27 Sept | Alton 01:18 | +2 min | +3 min |
| Sat 26 Sept | Alton 00:59 | +1 min | +5 min |
| Fri 25 Sept | 86912 00:59 | +5 min | +9 min |
| Sat 19 Sept | Alton 01:25 | +8 min | +8 min |
| Fri 18 Sept | 86912 00:59 | 0 min | +2 min |
| Sun 13 Sept | Alton 01:27 | +12 min | +12 min |
| Sat 12 Sept | Farnham 00:59 | +4 min | +4 min |
| Fri 11 Sept | Alton 00:59 | −1 min | — |
| Sun 6 Sept | Alton 03:42 | +14 min | +17 min |
| Sat 5 Sept | 87037 00:59 | +16 min | +17 min |
| Fri 4 Sept | Alton 00:59 | −1 min | — |
| Sun 30 Aug | — 01:01 | 0 min | — |
| Sat 29 Aug | Farnham 00:59 | 0 min | +1 min |
| Fri 28 Aug | 86912 00:59 | 0 min | — |
| Sun 23 Aug | 86912 01:22 | +22 min | +22 min |
| Sat 22 Aug | Farnham 00:57 | +2 min | +5 min |
| Fri 21 Aug | 86912 00:59 | 0 min | +1 min |
| Sun 16 Aug | 86912 01:02 | +1 min | +1 min |
| Sat 15 Aug | 86912 00:59 | +1 min | +17 min |
| Sun 9 Aug | Alton 01:24 | +8 min | +9 min |
| Sat 8 Aug | 86912 00:59 | +6 min | +7 min |
| Fri 7 Aug | 86912 00:59 | +1 min | +2 min |
| Sun 2 Aug | 87199 04:34 | +2 min | +11 min |
| Sat 1 Aug | 86912 00:59 | +7 min | +63 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.