South Western Railway 871A12
View line South Western Railway
Alerts for train 871A12
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
68%
19/28 runs under 3 min
RT coverage: 28 full · 0 partial · 0 no data
On-time · 90 days
77%
67/87 runs under 3 min
RT coverage: 87 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: +1 min
P90
+4min
9 in 10 runs arrive with less than this
30 days: +4 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
- Sun 23 Aug Max en route +50 min · last fix heading to Brighton +46 min
- Fri 31 Jul Max en route +31 min · last fix heading to 87286 +19 min
- Tue 20 Oct Max en route +13 min · last fix heading to Clapham Jn. C.S. +13 min
- Sun 9 Aug Max en route +10 min · last fix heading to Brighton +9 min
- Sun 13 Sept Max en route +8 min · last fix heading to Brighton +8 min
Distribution · 90 days
87 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 13% · 11
- On time 64% · 56
- 3–10 min 20% · 17
- 10–30 min 2% · 2
- 30+ min 1% · 1
On-time by weekday
- 85% M n=13
- 69% T n=13
- 92% W n=12
- 92% T n=12
- 85% F n=13
- 83% S n=12
- 33% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 20 Oct | Clapham Jn. C.S. 07:17 | +13 min | +13 min |
| Mon 19 Oct | Clapham Jn. C.S. 07:06 | +2 min | +2 min |
| Sun 18 Oct | Preston Park 11:13 | 0 min | +1 min |
| Sat 17 Oct | Wimbledon 07:14 | +3 min | +3 min |
| Fri 16 Oct | Clapham Jn. C.S. 07:05 | +1 min | +1 min |
| Thu 15 Oct | Clapham Jn. C.S. 07:06 | +1 min | +2 min |
| Wed 14 Oct | Clapham Jn. C.S. 07:04 | −1 min | +1 min |
| Tue 13 Oct | Clapham Jn. C.S. 07:08 | +4 min | +4 min |
| Mon 12 Oct | Clapham Jn. C.S. 07:07 | +3 min | +3 min |
| Sat 10 Oct | Clapham Jn. C.S. 07:11 | +1 min | +2 min |
| Fri 9 Oct | Clapham Jn. C.S. 07:05 | +1 min | +1 min |
| Thu 8 Oct | Clapham Jn. C.S. 07:04 | 0 min | +1 min |
| Wed 7 Oct | Clapham Jn. C.S. 07:03 | −1 min | — |
| Tue 6 Oct | Clapham Jn. C.S. 07:06 | +2 min | +3 min |
| Mon 5 Oct | 87286 07:04 | 0 min | +1 min |
| Sun 4 Oct | Brighton 11:21 | −1 min | +2 min |
| Sat 3 Oct | 87286 07:19 | +4 min | +5 min |
| Fri 2 Oct | 87286 07:08 | +4 min | +4 min |
| Thu 1 Oct | 87286 07:06 | +2 min | +3 min |
| Wed 30 Sept | 87286 07:05 | +1 min | +2 min |
| Tue 29 Sept | 87286 07:06 | +1 min | +1 min |
| Mon 28 Sept | 87286 07:04 | 0 min | +1 min |
| Sun 27 Sept | Brighton 11:21 | +4 min | +6 min |
| Sat 26 Sept | 87286 07:09 | −2 min | +3 min |
| Fri 25 Sept | 87286 07:04 | 0 min | +2 min |
| Thu 24 Sept | 87286 07:07 | +3 min | +4 min |
| Wed 23 Sept | 87286 07:02 | −2 min | +1 min |
| Tue 22 Sept | 87286 07:11 | +7 min | +7 min |
| Mon 21 Sept | 87286 07:08 | +3 min | +3 min |
| Sun 20 Sept | Brighton 11:24 | +2 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.