South Western Railway 871T17
View line South Western Railway
Alerts for train 871T17
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%
8/24 runs under 3 min
RT coverage: 24 full · 0 partial · 0 no data
On-time · 90 days
39%
29/75 runs under 3 min
RT coverage: 75 full · 0 partial · 0 no data
Typical delay
+4min
Median at arrival, 90 days
30 days: +7 min
P90
+16min
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
- Thu 8 Oct Max en route +49 min · last fix heading to Portsmouth & Southsea +49 min
- Mon 7 Sept Max en route +47 min · last fix heading to Portsmouth Harbour +45 min
- Mon 28 Sept Max en route +30 min · last fix heading to Portsmouth Harbour +28 min
- Wed 26 Aug Max en route +27 min · last fix heading to Portsmouth Harbour +25 min
- Wed 30 Sept Max en route +24 min · last fix heading to Portsmouth Harbour +21 min
Distribution · 90 days
75 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 39% · 29
- 3–10 min 40% · 30
- 10–30 min 19% · 14
- 30+ min 3% · 2
On-time by weekday
- 42% M n=12
- 42% T n=12
- 31% W n=13
- 23% T n=13
- 46% F n=13
- 50% S n=12
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 24 Oct | Portsmouth Harbour 10:35 | +9 min | +10 min |
| Fri 23 Oct | Portsmouth Harbour 10:39 | +12 min | +14 min |
| Thu 22 Oct | Portsmouth Harbour 10:33 | +6 min | +8 min |
| Wed 21 Oct | Portsmouth Harbour 10:35 | +8 min | +8 min |
| Tue 20 Oct | Portsmouth Harbour 10:43 | +16 min | +21 min |
| Mon 19 Oct | Portsmouth Harbour 14:38 | +7 min | +8 min |
| Sat 17 Oct | Portsmouth Harbour 10:28 | +1 min | +7 min |
| Fri 16 Oct | Portsmouth Harbour 10:35 | +8 min | +8 min |
| Thu 15 Oct | Portsmouth Harbour 14:50 | +2 min | +4 min |
| Wed 14 Oct | Portsmouth Harbour 10:28 | +1 min | +3 min |
| Tue 13 Oct | Portsmouth Harbour 10:38 | +12 min | +14 min |
| Mon 12 Oct | Portsmouth Harbour 10:40 | +13 min | +15 min |
| Sat 10 Oct | Portsmouth & Southsea 10:29 | +3 min | +4 min |
| Fri 9 Oct | Portsmouth Harbour 10:27 | 0 min | +3 min |
| Thu 8 Oct | Portsmouth & Southsea 11:06 | +49 min | +49 min |
| Wed 7 Oct | Portsmouth Harbour 10:32 | +5 min | +7 min |
| Tue 6 Oct | Portsmouth Harbour 10:27 | 0 min | +2 min |
| Mon 5 Oct | Portsmouth Harbour 10:27 | 0 min | +2 min |
| Sat 3 Oct | 86243 10:00 | +2 min | +4 min |
| Fri 2 Oct | Portsmouth Harbour 10:33 | +6 min | +8 min |
| Thu 1 Oct | Portsmouth Harbour 10:36 | +9 min | +16 min |
| Wed 30 Sept | Portsmouth Harbour 14:44 | +21 min | +24 min |
| Tue 29 Sept | Portsmouth Harbour 10:27 | 0 min | +3 min |
| Mon 28 Sept | Portsmouth Harbour 10:54 | +28 min | +30 min |
| Sat 26 Sept | Portsmouth Harbour 15:50 | +11 min | +14 min |
| Fri 25 Sept | Portsmouth Harbour 10:27 | 0 min | +3 min |
| Thu 24 Sept | Portsmouth Harbour 10:33 | +6 min | +8 min |
| Wed 23 Sept | Portsmouth Harbour 14:29 | +9 min | +9 min |
| Tue 22 Sept | Portsmouth Harbour 10:27 | 0 min | +5 min |
| Mon 21 Sept | Portsmouth Harbour 10:35 | +8 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.