South Western Railway 871A17
View line South Western Railway
Alerts for train 871A17
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
81%
21/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
59%
50/85 runs under 3 min
RT coverage: 85 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +1 min
P90
+8min
9 in 10 runs arrive with less than this
30 days: +5 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
- Mon 7 Sept Max en route +32 min · last fix heading to Alton +32 min
- Sun 23 Aug Max en route +26 min · last fix heading to 87230 +26 min
- Fri 4 Sept Max en route +24 min · last fix heading to Alton +24 min
- Mon 12 Oct Max en route +18 min · last fix heading to Woking +18 min
- Sun 13 Sept Max en route +11 min · last fix heading to 87230 +10 min
Distribution · 90 days
85 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 7% · 6
- On time 52% · 44
- 3–10 min 34% · 29
- 10–30 min 6% · 5
- 30+ min 1% · 1
On-time by weekday
- 62% M n=13
- 46% T n=13
- 54% W n=13
- 67% T n=12
- 75% F n=12
- 70% S n=10
- 42% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 21 Oct | Alton 10:14 | +7 min | +8 min |
| Tue 20 Oct | Alton 10:07 | +1 min | +7 min |
| Mon 19 Oct | Alton 10:07 | +1 min | +2 min |
| Sun 18 Oct | Sydenham 10:56 | 0 min | +1 min |
| Sat 17 Oct | Alton 09:45 | −1 min | +1 min |
| Fri 16 Oct | Alton 10:08 | +1 min | +3 min |
| Thu 15 Oct | Alton 10:08 | +2 min | +3 min |
| Wed 14 Oct | Alton 10:08 | +2 min | +6 min |
| Tue 13 Oct | Alton 10:07 | +1 min | +6 min |
| Mon 12 Oct | Woking 09:37 | +18 min | +18 min |
| Fri 9 Oct | Alton 10:07 | +1 min | +2 min |
| Thu 8 Oct | Alton 10:06 | 0 min | +8 min |
| Wed 7 Oct | Alton 10:09 | +2 min | +3 min |
| Tue 6 Oct | Alton 09:45 | −21 min | +3 min |
| Mon 5 Oct | Alton 10:07 | +1 min | +3 min |
| Sun 4 Oct | 87230 11:06 | −1 min | +2 min |
| Fri 2 Oct | Alton 10:07 | +1 min | +4 min |
| Thu 1 Oct | Alton 10:08 | +2 min | +4 min |
| Wed 30 Sept | Alton 10:11 | +5 min | +5 min |
| Tue 29 Sept | Alton 10:10 | +4 min | +5 min |
| Mon 28 Sept | Alton 10:08 | +2 min | +6 min |
| Sun 27 Sept | 87230 10:57 | +3 min | +5 min |
| Sat 26 Sept | Alton 09:47 | 0 min | +1 min |
| Fri 25 Sept | Alton 09:48 | −18 min | +2 min |
| Thu 24 Sept | Alton 09:47 | −20 min | +2 min |
| Wed 23 Sept | Alton 09:49 | −18 min | +1 min |
| Tue 22 Sept | Alton 09:53 | −14 min | +11 min |
| Mon 21 Sept | Alton 09:48 | −18 min | +5 min |
| Sun 20 Sept | 87230 10:56 | +2 min | +4 min |
| Fri 18 Sept | Alton 10:16 | +2 min | +5 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.