South Western Railway 871D17
View line South Western Railway
Alerts for train 871D17
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
67%
20/30 runs under 3 min
RT coverage: 30 full · 0 partial · 0 no data
On-time · 90 days
81%
71/88 runs under 3 min
RT coverage: 88 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: +2 min
P90
+5min
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
- Sun 25 Oct Max en route +19 min · last fix heading to Box Hill & Westhumble +17 min
- Wed 30 Sept Max en route +15 min · last fix heading to Dorking +8 min
- Sat 8 Aug Max en route +7 min · last fix heading to Dorking +7 min
- Tue 11 Aug Max en route +7 min · last fix heading to Dorking +6 min
- Wed 28 Oct Max en route +8 min · last fix heading to Dorking +5 min
Distribution · 90 days
88 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 23% · 20
- On time 58% · 51
- 3–10 min 18% · 16
- 10–30 min 1% · 1
- 30+ min 0% · 0
On-time by weekday
- 85% M n=13
- 85% T n=13
- 69% W n=13
- 75% T n=12
- 77% F n=13
- 85% S n=13
- 91% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 28 Oct | Dorking 10:29 | +5 min | +8 min |
| Tue 27 Oct | Box Hill & Westhumble 10:29 | +5 min | +5 min |
| Mon 26 Oct | Dorking 10:25 | +1 min | +3 min |
| Sun 25 Oct | Box Hill & Westhumble 10:21 | +17 min | +19 min |
| Sat 24 Oct | Dorking 10:22 | −2 min | — |
| Fri 23 Oct | Dorking 10:30 | +5 min | +6 min |
| Thu 22 Oct | Dorking 10:29 | +5 min | +7 min |
| Wed 21 Oct | Dorking 10:29 | +5 min | +6 min |
| Tue 20 Oct | Dorking 10:26 | +2 min | +4 min |
| Mon 19 Oct | Dorking 10:22 | −3 min | — |
| Sun 18 Oct | Dorking 10:06 | +2 min | +4 min |
| Sat 17 Oct | Dorking 10:24 | −1 min | — |
| Fri 16 Oct | Dorking 10:27 | +2 min | +4 min |
| Thu 15 Oct | Box Hill & Westhumble 10:23 | −2 min | — |
| Wed 14 Oct | Dorking 10:25 | +1 min | +3 min |
| Tue 13 Oct | Dorking 10:22 | −2 min | — |
| Mon 12 Oct | Dorking 10:22 | −2 min | — |
| Sun 11 Oct | Box Hill & Westhumble 10:03 | −2 min | +2 min |
| Sat 10 Oct | Dorking 10:22 | −2 min | — |
| Fri 9 Oct | Box Hill & Westhumble 10:27 | +3 min | +5 min |
| Thu 8 Oct | Box Hill & Westhumble 10:29 | +4 min | +8 min |
| Wed 7 Oct | Dorking 10:27 | +2 min | +4 min |
| Tue 6 Oct | Box Hill & Westhumble 10:23 | −1 min | +3 min |
| Mon 5 Oct | Dorking 10:26 | +2 min | +3 min |
| Sun 4 Oct | Dorking 10:06 | +1 min | +2 min |
| Sat 3 Oct | Dorking 10:21 | −4 min | +1 min |
| Fri 2 Oct | Dorking 10:29 | +4 min | +5 min |
| Thu 1 Oct | Dorking 10:24 | 0 min | +2 min |
| Wed 30 Sept | Dorking 10:32 | +8 min | +15 min |
| Tue 29 Sept | Dorking 10:25 | 0 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.