Transport for Wales 421J66
View line Transport for Wales
Alerts for train 421J66
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
71%
17/24 runs under 3 min
RT coverage: 24 full ยท 0 partial ยท 0 no data
On-time ยท 90 days
50%
32/64 runs under 3 min
RT coverage: 64 full ยท 0 partial ยท 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +1 min
P90
+14min
9 in 10 runs arrive with less than this
30 days: +18 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
- Sat 19 Sept Max en route +30 min ยท last fix heading to 40238 +30 min
- Sat 18 Jul Max en route +29 min ยท last fix heading to 40238 +29 min
- Mon 14 Sept Max en route +25 min ยท last fix heading to 40238 +24 min
- Thu 17 Sept Max en route +19 min ยท last fix heading to 40238 +19 min
- Sat 10 Oct Max en route +17 min ยท last fix heading to โ +15 min
Distribution ยท 90 days
64 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 8% ยท 5
- On time 42% ยท 27
- 3โ10 min 34% ยท 22
- 10โ30 min 14% ยท 9
- 30+ min 2% ยท 1
On-time by weekday
- 30% M n=10
- 70% T n=10
- 55% W n=11
- 64% T n=11
- 55% F n=11
- 27% S n=11
- โ S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 10 Oct | โ 13:22 | +15 min | +17 min |
| Fri 9 Oct | โ 13:10 | +2 min | +4 min |
| Thu 8 Oct | โ 13:08 | +1 min | +3 min |
| Wed 7 Oct | โ 13:11 | +3 min | +5 min |
| Tue 6 Oct | โ 13:10 | +3 min | +4 min |
| Mon 5 Oct | โ 13:07 | โ1 min | +1 min |
| Sat 3 Oct | 40238 13:09 | +1 min | +3 min |
| Fri 2 Oct | 40238 13:07 | 0 min | +1 min |
| Thu 1 Oct | 40238 13:05 | โ2 min | โ |
| Wed 30 Sept | 40238 13:07 | โ1 min | +1 min |
| Tue 29 Sept | 40238 13:08 | +1 min | +2 min |
| Mon 28 Sept | 40238 13:09 | +1 min | +3 min |
| Sat 26 Sept | 40238 13:08 | 0 min | +2 min |
| Fri 25 Sept | 40238 13:06 | โ2 min | โ |
| Thu 24 Sept | 40238 13:07 | 0 min | +2 min |
| Wed 23 Sept | 40238 13:22 | +14 min | +16 min |
| Tue 22 Sept | 40238 13:06 | โ2 min | โ |
| Mon 21 Sept | 40238 13:07 | โ1 min | +1 min |
| Sat 19 Sept | 40238 13:37 | +30 min | +30 min |
| Fri 18 Sept | 40238 13:09 | +1 min | +1 min |
| Thu 17 Sept | 40238 13:26 | +19 min | +19 min |
| Wed 16 Sept | 40238 13:06 | โ1 min | โ |
| Tue 15 Sept | 40238 13:07 | 0 min | โ |
| Mon 14 Sept | 40238 13:31 | +24 min | +25 min |
| Sat 12 Sept | 40238 13:22 | +15 min | +16 min |
| Fri 11 Sept | 40238 13:19 | +11 min | +11 min |
| Thu 10 Sept | 40238 13:06 | โ1 min | +2 min |
| Wed 9 Sept | 40238 13:13 | +6 min | +7 min |
| Tue 8 Sept | 40238 13:05 | โ2 min | โ |
| Mon 7 Sept | 40238 12:59 | +9 min | +9 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.