South Western Railway 831L40
View line South Western Railway
Alerts for train 831L40
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
55%
16/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
50%
44/88 runs under 3 min
RT coverage: 88 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +1 min
P90
+20min
9 in 10 runs arrive with less than this
30 days: +11 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
- Sat 5 Sept Max en route +82 min · last fix heading to 86116 +73 min
- Mon 20 Jul Max en route +67 min · last fix heading to Farnborough (Main) +63 min
- Mon 27 Jul Max en route +37 min · last fix heading to 87286 +35 min
- Sun 26 Jul Max en route +27 min · last fix heading to 86116 +27 min
- Fri 24 Jul Max en route +31 min · last fix heading to 87286 +26 min
Distribution · 90 days
88 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 10% · 9
- On time 40% · 35
- 3–10 min 25% · 22
- 10–30 min 22% · 19
- 30+ min 3% · 3
On-time by weekday
- 54% M n=13
- 75% T n=12
- 62% W n=13
- 54% T n=13
- 38% F n=13
- 33% S n=12
- 33% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 12 Oct | Clapham Jn. C.S. 14:08 | +11 min | +14 min |
| Sun 11 Oct | Gillingham (Dorset) 23:15 | +3 min | +9 min |
| Sat 10 Oct | Gillingham (Dorset) 22:58 | +1 min | +4 min |
| Fri 9 Oct | Clapham Jn. C.S. 13:56 | −2 min | +4 min |
| Thu 8 Oct | Wimbledon 13:54 | −4 min | +7 min |
| Wed 7 Oct | Wimbledon 13:54 | −4 min | +2 min |
| Tue 6 Oct | Wimbledon 13:57 | 0 min | +9 min |
| Mon 5 Oct | Wimbledon 13:58 | 0 min | +10 min |
| Sun 4 Oct | 87286 14:06 | +4 min | +9 min |
| Sat 3 Oct | 87286 14:02 | +5 min | +9 min |
| Fri 2 Oct | 87286 14:41 | +21 min | +34 min |
| Thu 1 Oct | 87286 14:47 | +5 min | +10 min |
| Wed 30 Sept | 87286 13:57 | −1 min | +7 min |
| Tue 29 Sept | 87286 13:56 | −1 min | +4 min |
| Mon 28 Sept | 87286 13:58 | +1 min | +9 min |
| Sun 27 Sept | Sherborne 12:04 | +14 min | +14 min |
| Sat 26 Sept | 87286 15:50 | +4 min | +5 min |
| Fri 25 Sept | 87286 15:23 | +3 min | +5 min |
| Thu 24 Sept | 87286 13:53 | −4 min | +8 min |
| Wed 23 Sept | 87286 13:59 | +1 min | +10 min |
| Tue 22 Sept | 87286 13:58 | +1 min | +7 min |
| Mon 21 Sept | 87286 14:02 | +4 min | +19 min |
| Sun 20 Sept | 86069 13:13 | +1 min | +5 min |
| Sat 19 Sept | 87215 14:40 | +12 min | +12 min |
| Fri 18 Sept | 87286 14:02 | +5 min | +10 min |
| Thu 17 Sept | 87286 14:02 | +5 min | +6 min |
| Wed 16 Sept | 87286 13:56 | 0 min | +3 min |
| Tue 15 Sept | 87286 14:41 | 0 min | +6 min |
| Mon 14 Sept | 87286 13:56 | −1 min | +11 min |
| Fri 11 Sept | 87286 14:00 | +2 min | +7 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.