South Western Railway 871A66
View line South Western Railway
Alerts for train 871A66
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
27%
7/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
35%
27/77 runs under 3 min
RT coverage: 77 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +5 min
P90
+19min
9 in 10 runs arrive with less than this
30 days: +20 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 31 Jul Max en route +36 min · last fix heading to Hassocks +36 min
- Tue 13 Oct Max en route +35 min · last fix heading to — +35 min
- Thu 3 Sept Max en route +28 min · last fix heading to Brighton +27 min
- Mon 12 Oct Max en route +36 min · last fix heading to Clapham Jn. C.S. +25 min
- Wed 2 Sept Max en route +22 min · last fix heading to Brighton +22 min
Distribution · 90 days
77 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 5% · 4
- On time 30% · 23
- 3–10 min 42% · 32
- 10–30 min 21% · 16
- 30+ min 3% · 2
On-time by weekday
- 15% M n=13
- 54% T n=13
- 33% W n=12
- 23% T n=13
- 46% F n=13
- 38% S n=13
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 13 Oct | — 01:32 | +35 min | +35 min |
| Mon 12 Oct | Clapham Jn. C.S. 21:02 | +25 min | +36 min |
| Sat 10 Oct | Three Bridges 00:23 | +3 min | +3 min |
| Fri 9 Oct | Brighton 00:56 | +12 min | +56 min |
| Thu 8 Oct | Preston Park 00:49 | +5 min | +7 min |
| Wed 7 Oct | Preston Park 00:49 | +4 min | +5 min |
| Tue 6 Oct | Brighton 00:45 | +1 min | +2 min |
| Mon 5 Oct | Brighton 00:47 | +3 min | +6 min |
| Sat 3 Oct | Brighton 00:51 | +7 min | +8 min |
| Fri 2 Oct | Brighton 00:46 | +2 min | +4 min |
| Thu 1 Oct | Brighton 00:52 | +5 min | +20 min |
| Wed 30 Sept | Brighton 00:59 | +20 min | +20 min |
| Tue 29 Sept | Brighton 00:55 | +7 min | +7 min |
| Mon 28 Sept | Brighton 00:52 | +3 min | +3 min |
| Sat 26 Sept | Brighton 00:47 | +3 min | +4 min |
| Fri 25 Sept | Brighton 00:51 | +7 min | +8 min |
| Thu 24 Sept | Brighton 00:51 | +6 min | +6 min |
| Wed 23 Sept | Brighton 00:50 | +5 min | +5 min |
| Tue 22 Sept | Brighton 00:46 | +1 min | +3 min |
| Mon 21 Sept | Brighton 00:46 | 0 min | +4 min |
| Sat 19 Sept | Brighton 00:48 | +4 min | +6 min |
| Fri 18 Sept | Brighton 00:44 | 0 min | +10 min |
| Thu 17 Sept | Brighton 00:45 | +1 min | +9 min |
| Wed 16 Sept | Brighton 00:53 | +8 min | +10 min |
| Tue 15 Sept | Brighton 00:44 | 0 min | +19 min |
| Mon 14 Sept | Brighton 00:59 | +19 min | +20 min |
| Sat 12 Sept | Brighton 00:47 | +1 min | +4 min |
| Fri 11 Sept | Brighton 00:51 | +6 min | +8 min |
| Thu 10 Sept | Brighton 00:42 | −1 min | +6 min |
| Wed 9 Sept | Brighton 00:52 | +9 min | +18 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.