South Western Railway 871Z40
View line South Western Railway
Alerts for train 871Z40
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%
1/3 runs under 3 min
RT coverage: 3 full · 0 partial · 0 no data
On-time · 90 days
55%
6/11 runs under 3 min
RT coverage: 11 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
P90
+32min
9 in 10 runs arrive with less than this
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
- Sun 6 Sept Max en route +35 min · last fix heading to Hastings +35 min
- Sat 10 Oct Max en route +32 min · last fix heading to Tonbridge +32 min
- Sun 16 Aug Max en route +20 min · last fix heading to Hastings +20 min
- Thu 17 Sept Max en route +23 min · last fix heading to Portsmouth & Southsea +18 min
- Wed 7 Oct Max en route +18 min · last fix heading to Wimbledon +15 min
Distribution · 90 days
11 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 9% · 1
- On time 45% · 5
- 3–10 min 0% · 0
- 10–30 min 27% · 3
- 30+ min 18% · 2
On-time by weekday
- — M n=0
- 100% T n=1
- 0% W n=1
- 0% T n=1
- 100% F n=1
- 75% S n=4
- 33% S n=3
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 31 Oct | Barnes 14:41 | −1 min | — |
| Sat 10 Oct | Tonbridge 15:51 | +32 min | +32 min |
| Wed 7 Oct | Wimbledon 14:21 | +15 min | +18 min |
| Sat 19 Sept | Portsmouth Harbour 18:57 | 0 min | +7 min |
| Thu 17 Sept | Portsmouth & Southsea 17:42 | +18 min | +23 min |
| Tue 15 Sept | Kew Bridge 13:38 | −2 min | +9 min |
| Sat 12 Sept | Portsmouth Harbour 18:57 | 0 min | +11 min |
| Sun 6 Sept | Hastings 17:43 | +35 min | +35 min |
| Fri 21 Aug | Barnham 16:39 | 0 min | +4 min |
| Sun 16 Aug | Hastings 16:17 | +20 min | +20 min |
| Sun 9 Aug | Hastings 15:59 | +2 min | +4 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.