South Western Railway 871T41
View line South Western Railway
Alerts for train 871T41
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
44%
11/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
47%
35/75 runs under 3 min
RT coverage: 75 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +6 min
P90
+12min
9 in 10 runs arrive with less than this
30 days: +13 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 +34 min · last fix heading to Portsmouth Harbour +32 min
- Wed 21 Oct Max en route +34 min · last fix heading to Portsmouth Harbour +29 min
- Sat 22 Aug Max en route +30 min · last fix heading to Portsmouth Harbour +28 min
- Wed 9 Sept Max en route +23 min · last fix heading to Portsmouth Harbour +22 min
- Fri 23 Oct Max en route +22 min · last fix heading to Portsmouth Harbour +20 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 47% · 35
- 3–10 min 35% · 26
- 10–30 min 17% · 13
- 30+ min 1% · 1
On-time by weekday
- 54% M n=13
- 50% T n=12
- 50% W n=12
- 46% T n=13
- 23% F n=13
- 58% S n=12
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 26 Oct | Portchester 16:09 | +13 min | +13 min |
| Sat 24 Oct | Portsmouth Harbour 16:42 | +10 min | +15 min |
| Fri 23 Oct | Portsmouth Harbour 16:47 | +20 min | +22 min |
| Thu 22 Oct | Portsmouth & Southsea 16:28 | +2 min | +4 min |
| Wed 21 Oct | Portsmouth Harbour 16:56 | +29 min | +34 min |
| Tue 20 Oct | Portsmouth Harbour 16:32 | +5 min | +7 min |
| Mon 19 Oct | Portsmouth Harbour 16:27 | 0 min | +3 min |
| Sat 17 Oct | Portsmouth Harbour 16:26 | 0 min | +2 min |
| Fri 16 Oct | Portsmouth & Southsea 16:34 | +7 min | +9 min |
| Thu 15 Oct | Portsmouth Harbour 16:32 | +6 min | +8 min |
| Wed 14 Oct | Portsmouth Harbour 16:27 | 0 min | +3 min |
| Tue 13 Oct | Portsmouth Harbour 16:37 | +11 min | +18 min |
| Mon 12 Oct | Portsmouth Harbour 16:36 | +9 min | +10 min |
| Sat 10 Oct | Portsmouth Harbour 16:38 | +12 min | +12 min |
| Fri 9 Oct | Portsmouth Harbour 16:56 | +7 min | +9 min |
| Thu 8 Oct | Portsmouth Harbour 16:29 | +6 min | +7 min |
| Wed 7 Oct | Portsmouth Harbour 16:27 | 0 min | +2 min |
| Tue 6 Oct | Portsmouth Harbour 16:28 | +1 min | +3 min |
| Mon 5 Oct | Portsmouth Harbour 16:22 | +1 min | +3 min |
| Sat 3 Oct | 86243 15:58 | 0 min | +4 min |
| Fri 2 Oct | Portsmouth Harbour 16:28 | +1 min | +3 min |
| Thu 1 Oct | Portsmouth Harbour 16:32 | +6 min | +7 min |
| Wed 30 Sept | Portsmouth Harbour 16:39 | +12 min | +14 min |
| Tue 29 Sept | Portsmouth Harbour 16:29 | +2 min | +5 min |
| Mon 28 Sept | Portsmouth Harbour 16:27 | 0 min | +2 min |
| Sat 26 Sept | Portsmouth Harbour 16:27 | 0 min | +2 min |
| Fri 25 Sept | Portsmouth Harbour 16:33 | +6 min | +8 min |
| Thu 24 Sept | Portsmouth Harbour 16:36 | +9 min | +10 min |
| Wed 23 Sept | Portsmouth Harbour 16:29 | +2 min | +4 min |
| Tue 22 Sept | Portsmouth Harbour 16:31 | +4 min | +6 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.