South Western Railway 871Z39
View line South Western Railway
Alerts for train 871Z39
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
33%
2/6 runs under 3 min
RT coverage: 6 full · 0 partial · 0 no data
On-time · 90 days
33%
2/6 runs under 3 min
RT coverage: 6 full · 0 partial · 0 no data
Typical delay
+25min
Median at arrival, 90 days
30 days: +25 min
P90
+72min
9 in 10 runs arrive with less than this
30 days: +72 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 18 Sept Max en route +72 min · last fix heading to — +72 min
- Thu 17 Sept Max en route +73 min · last fix heading to 87230 +71 min
- Sun 27 Sept Max en route +41 min · last fix heading to 86080 +36 min
- Thu 8 Oct Max en route +14 min · last fix heading to Clapham Jn. C.S. +14 min
Distribution · 90 days
6 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 33% · 2
- 3–10 min 0% · 0
- 10–30 min 17% · 1
- 30+ min 50% · 3
On-time by weekday
- — M n=0
- — T n=0
- — W n=0
- 0% T n=2
- 0% F n=1
- 100% S n=1
- 50% S n=2
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 11 Oct | Basingstoke 14:14 | +2 min | +3 min |
| Sat 10 Oct | Basingstoke 14:44 | +1 min | +1 min |
| Thu 8 Oct | Clapham Jn. C.S. 16:20 | +14 min | +14 min |
| Sun 27 Sept | 86080 15:30 | +36 min | +41 min |
| Fri 18 Sept | — 10:54 | +72 min | +72 min |
| Thu 17 Sept | 87230 17:04 | +71 min | +73 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.