West Midlands Trains 421U36
View line West Midlands Trains
Alerts for train 421U36
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line West Midlands Trains.
The mini-map returns when the train runs
On-time · 30 days
12%
3/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
19%
16/85 runs under 3 min
RT coverage: 85 full · 0 partial · 0 no data
Typical delay
+7min
Median at arrival, 90 days
30 days: +6 min
P90
+23min
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
- Mon 3 Aug Max en route +40 min · last fix heading to Bletchley +40 min
- Fri 21 Aug Max en route +33 min · last fix heading to Bletchley +31 min
- Sat 3 Oct Max en route +30 min · last fix heading to 72268 +28 min
- Thu 10 Sept Max en route +27 min · last fix heading to Bletchley +27 min
- Sun 16 Aug Max en route +27 min · last fix heading to 72268 +26 min
Distribution · 90 days
85 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 5% · 4
- On time 14% · 12
- 3–10 min 45% · 38
- 10–30 min 34% · 29
- 30+ min 2% · 2
On-time by weekday
- 0% M n=12
- 8% T n=12
- 8% W n=13
- 23% T n=13
- 23% F n=13
- 36% S n=11
- 36% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 25 Oct | Harrow & Wealdstone 17:33 | 0 min | — |
| Sat 24 Oct | Harrow & Wealdstone 17:40 | +7 min | +9 min |
| Fri 23 Oct | Wembley Central 17:53 | +21 min | +21 min |
| Thu 22 Oct | Harrow & Wealdstone 17:49 | +17 min | +19 min |
| Wed 21 Oct | Harrow & Wealdstone 17:56 | +24 min | +24 min |
| Tue 20 Oct | Wembley Central 17:43 | +11 min | +11 min |
| Mon 19 Oct | Harrow & Wealdstone 17:35 | +4 min | +4 min |
| Fri 16 Oct | Wembley Central 17:51 | +19 min | +19 min |
| Thu 15 Oct | Harrow & Wealdstone 17:35 | +3 min | +6 min |
| Wed 14 Oct | Wembley Central 17:39 | +6 min | +7 min |
| Tue 13 Oct | Harrow & Wealdstone 17:38 | +6 min | +6 min |
| Mon 12 Oct | Wembley Central 17:38 | +6 min | +6 min |
| Fri 9 Oct | Harrow & Wealdstone 17:41 | +9 min | +9 min |
| Thu 8 Oct | Harrow & Wealdstone 17:37 | +6 min | +6 min |
| Wed 7 Oct | Harrow & Wealdstone 17:37 | +5 min | +5 min |
| Tue 6 Oct | Harrow & Wealdstone 17:34 | +3 min | +5 min |
| Mon 5 Oct | Wembley Central 17:35 | +4 min | +4 min |
| Sun 4 Oct | 72268 17:38 | +5 min | +8 min |
| Sat 3 Oct | 72268 18:00 | +28 min | +30 min |
| Fri 2 Oct | 72268 17:51 | +19 min | +20 min |
| Thu 1 Oct | 72268 17:33 | +1 min | +4 min |
| Wed 30 Sept | 72268 17:46 | +15 min | +15 min |
| Tue 29 Sept | 72268 17:33 | +1 min | +2 min |
| Mon 28 Sept | 72268 17:40 | +9 min | +11 min |
| Sun 27 Sept | 72268 17:50 | +17 min | +21 min |
| Sat 26 Sept | 72268 17:33 | +1 min | +3 min |
| Fri 25 Sept | 72268 17:32 | 0 min | +3 min |
| Thu 24 Sept | 72268 17:35 | +3 min | +6 min |
| Wed 23 Sept | 72268 17:39 | +8 min | +8 min |
| Tue 22 Sept | 72268 17:35 | +3 min | +4 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.