West Midlands Trains 421U42
View line West Midlands Trains
Alerts for train 421U42
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
37%
10/27 runs under 3 min
RT coverage: 27 full · 0 partial · 0 no data
On-time · 90 days
27%
23/85 runs under 3 min
RT coverage: 85 full · 0 partial · 0 no data
Typical delay
+5min
Median at arrival, 90 days
30 days: +3 min
P90
+17min
9 in 10 runs arrive with less than this
30 days: +12 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 21 Aug Max en route +60 min · last fix heading to 72268 +59 min
- Sat 25 Jul Max en route +42 min · last fix heading to 72268 +42 min
- Tue 28 Jul Max en route +37 min · last fix heading to Bletchley +37 min
- Thu 10 Sept Max en route +31 min · last fix heading to 72268 +30 min
- Wed 5 Aug Max en route +23 min · last fix heading to 72268 +23 min
Distribution · 90 days
85 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 4% · 3
- On time 24% · 20
- 3–10 min 47% · 40
- 10–30 min 21% · 18
- 30+ min 5% · 4
On-time by weekday
- 23% M n=13
- 17% T n=12
- 15% W n=13
- 38% T n=13
- 25% F n=12
- 30% S n=10
- 42% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 15 Oct | Wembley Central 20:33 | +1 min | +5 min |
| Wed 14 Oct | Harrow & Wealdstone 20:37 | +5 min | +6 min |
| Tue 13 Oct | Wembley Central 20:39 | +7 min | +7 min |
| Mon 12 Oct | Harrow & Wealdstone 20:46 | +14 min | +14 min |
| Fri 9 Oct | Harrow & Wealdstone 20:45 | +13 min | +14 min |
| Thu 8 Oct | Harrow & Wealdstone 20:38 | +6 min | +12 min |
| Wed 7 Oct | Wembley Central 20:33 | +1 min | +2 min |
| Tue 6 Oct | Harrow & Wealdstone 20:34 | +2 min | +5 min |
| Mon 5 Oct | Harrow & Wealdstone 20:35 | +3 min | +5 min |
| Sun 4 Oct | 72268 20:39 | +6 min | +9 min |
| Sat 3 Oct | 72268 20:50 | +3 min | +10 min |
| Fri 2 Oct | 72268 20:31 | −1 min | +1 min |
| Thu 1 Oct | 72268 20:46 | +13 min | +18 min |
| Wed 30 Sept | 72268 21:21 | +4 min | +8 min |
| Tue 29 Sept | 72268 20:36 | +4 min | +6 min |
| Mon 28 Sept | 72268 20:43 | +11 min | +13 min |
| Sun 27 Sept | 72268 20:34 | +1 min | +6 min |
| Sat 26 Sept | 72268 20:50 | +3 min | +7 min |
| Fri 25 Sept | 72268 20:45 | +2 min | +3 min |
| Thu 24 Sept | 72268 20:34 | +1 min | +7 min |
| Wed 23 Sept | 72268 20:30 | −2 min | +6 min |
| Tue 22 Sept | 72268 20:35 | +3 min | +3 min |
| Mon 21 Sept | 72268 20:34 | +1 min | +4 min |
| Sun 20 Sept | 72268 20:32 | −1 min | +1 min |
| Sat 19 Sept | 72268 20:50 | +3 min | +3 min |
| Fri 18 Sept | 72268 20:35 | +4 min | +5 min |
| Thu 17 Sept | 72268 20:43 | +10 min | +16 min |
| Wed 16 Sept | 72268 20:38 | +5 min | +11 min |
| Tue 15 Sept | 72268 20:40 | +8 min | +10 min |
| Mon 14 Sept | 72268 20:43 | +11 min | +12 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.