Transport for Wales 421J78
View line Transport for Wales
Alerts for train 421J78
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Transport for Wales.
The mini-map returns when the train runs
On-time ยท 30 days
48%
12/25 runs under 3 min
RT coverage: 25 full ยท 0 partial ยท 0 no data
On-time ยท 90 days
48%
31/65 runs under 3 min
RT coverage: 65 full ยท 0 partial ยท 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +3 min
P90
+8min
9 in 10 runs arrive with less than this
30 days: +8 min
Last 30 days
Delay at the end of each run, in minutes. One bar per run.
- On time (<3 min)
- 3โ10 min
- 10โ30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Fri 23 Oct Max en route +60 min ยท last fix heading to โ +60 min
- Tue 22 Sept Max en route +16 min ยท last fix heading to 40238 +16 min
- Mon 21 Sept Max en route +13 min ยท last fix heading to 40238 +13 min
- Thu 6 Aug Max en route +15 min ยท last fix heading to 40238 +12 min
- Thu 8 Oct Max en route +9 min ยท last fix heading to โ +9 min
Distribution ยท 90 days
65 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 12% ยท 8
- On time 35% ยท 23
- 3โ10 min 46% ยท 30
- 10โ30 min 5% ยท 3
- 30+ min 2% ยท 1
On-time by weekday
- 55% M n=11
- 60% T n=10
- 36% W n=11
- 45% T n=11
- 27% F n=11
- 64% S n=11
- โ S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 2 Nov | โ 19:18 | โ1 min | +4 min |
| Sat 31 Oct | โ 19:15 | +7 min | +9 min |
| Fri 30 Oct | โ 19:31 | +5 min | +5 min |
| Thu 29 Oct | โ 19:32 | +6 min | +6 min |
| Wed 28 Oct | โ 19:30 | +3 min | +3 min |
| Tue 27 Oct | โ 19:26 | 0 min | +3 min |
| Mon 26 Oct | โ 19:24 | โ2 min | +5 min |
| Sat 24 Oct | โ 19:13 | +5 min | +7 min |
| Fri 23 Oct | โ 20:27 | +60 min | +60 min |
| Thu 22 Oct | โ 19:24 | โ2 min | +3 min |
| Wed 21 Oct | โ 19:35 | +8 min | +8 min |
| Tue 20 Oct | โ 19:26 | 0 min | +2 min |
| Mon 19 Oct | โ 19:26 | โ1 min | +4 min |
| Sat 17 Oct | โ 19:06 | โ1 min | โ |
| Fri 16 Oct | โ 19:31 | +5 min | +5 min |
| Thu 15 Oct | โ 19:35 | +8 min | +12 min |
| Wed 14 Oct | โ 19:26 | โ1 min | +5 min |
| Tue 13 Oct | โ 19:27 | 0 min | +5 min |
| Mon 12 Oct | โ 19:31 | +5 min | +5 min |
| Sat 10 Oct | โ 19:08 | +1 min | +3 min |
| Fri 9 Oct | โ 19:32 | +6 min | +6 min |
| Thu 8 Oct | โ 19:36 | +9 min | +9 min |
| Wed 7 Oct | โ 19:33 | +6 min | +7 min |
| Tue 6 Oct | โ 19:25 | โ2 min | +1 min |
| Mon 5 Oct | โ 19:24 | โ3 min | +1 min |
| Sat 3 Oct | 40238 19:06 | โ2 min | โ |
| Fri 2 Oct | 40238 19:30 | +3 min | +3 min |
| Thu 1 Oct | 40238 19:26 | โ1 min | +1 min |
| Wed 30 Sept | 40238 19:29 | +3 min | +11 min |
| Tue 29 Sept | 40238 19:31 | +4 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.