South Western Railway 871W83
View line South Western Railway
Alerts for train 871W83
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
41%
9/22 runs under 3 min
RT coverage: 22 full · 0 partial · 0 no data
On-time · 90 days
45%
32/71 runs under 3 min
RT coverage: 71 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +4 min
P90
+23min
9 in 10 runs arrive with less than this
30 days: +21 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 +78 min · last fix heading to 86980 +73 min
- Sat 5 Sept Max en route +51 min · last fix heading to 86980 +47 min
- Fri 7 Aug Max en route +37 min · last fix heading to Weymouth C.H.S. +37 min
- Thu 24 Sept Max en route +37 min · last fix heading to Weymouth C.H.S. +35 min
- Thu 15 Oct Max en route +30 min · last fix heading to Dorchester South +30 min
Distribution · 90 days
71 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 3% · 2
- On time 42% · 30
- 3–10 min 31% · 22
- 10–30 min 17% · 12
- 30+ min 7% · 5
On-time by weekday
- 46% M n=13
- 62% T n=13
- 69% W n=13
- 36% T n=11
- 27% F n=11
- 20% S n=10
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 15 Oct | Dorchester South 00:03 | +30 min | +30 min |
| Wed 14 Oct | Weymouth 23:34 | +1 min | +7 min |
| Tue 13 Oct | Dorchester South 23:38 | +5 min | +8 min |
| Mon 12 Oct | Weymouth 23:35 | +2 min | +12 min |
| Sat 10 Oct | Dorchester South 23:36 | +3 min | +3 min |
| Thu 8 Oct | Dorchester South 23:34 | 0 min | +2 min |
| Wed 7 Oct | Dorchester South 23:32 | −1 min | +8 min |
| Tue 6 Oct | Weymouth 23:37 | +4 min | +7 min |
| Mon 5 Oct | Weymouth 23:36 | +3 min | +3 min |
| Fri 2 Oct | Weymouth C.H.S. 23:39 | +6 min | +7 min |
| Thu 1 Oct | Weymouth C.H.S. 23:38 | +5 min | +12 min |
| Wed 30 Sept | Weymouth C.H.S. 23:55 | +21 min | +22 min |
| Tue 29 Sept | Weymouth C.H.S. 23:54 | +21 min | +21 min |
| Mon 28 Sept | Weymouth C.H.S. 23:32 | −1 min | +3 min |
| Sat 26 Sept | 86980 23:39 | +6 min | +9 min |
| Fri 25 Sept | Weymouth C.H.S. 23:38 | +5 min | +9 min |
| Thu 24 Sept | Weymouth C.H.S. 00:08 | +35 min | +37 min |
| Wed 23 Sept | Weymouth C.H.S. 23:32 | −1 min | +11 min |
| Tue 22 Sept | Weymouth C.H.S. 23:32 | 0 min | +4 min |
| Mon 21 Sept | Weymouth C.H.S. 23:40 | +7 min | +8 min |
| Sat 19 Sept | Weymouth C.H.S. 23:34 | +1 min | +3 min |
| Fri 18 Sept | Weymouth C.H.S. 23:35 | +2 min | +11 min |
| Wed 16 Sept | Weymouth C.H.S. 23:32 | −1 min | +2 min |
| Tue 15 Sept | 86980 23:31 | −2 min | +5 min |
| Mon 14 Sept | Weymouth C.H.S. 23:38 | +5 min | +6 min |
| Sat 12 Sept | 86980 23:44 | +11 min | +12 min |
| Fri 11 Sept | Weymouth C.H.S. 23:57 | +24 min | +24 min |
| Thu 10 Sept | Weymouth C.H.S. 23:37 | +4 min | +11 min |
| Wed 9 Sept | Weymouth C.H.S. 23:32 | −1 min | +2 min |
| Tue 8 Sept | Weymouth C.H.S. 23:36 | +3 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.