Transport for Wales 421J88
View line Transport for Wales
Alerts for train 421J88
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 · 30 days
53%
9/17 runs under 3 min
RT coverage: 17 full · 0 partial · 0 no data
On-time · 90 days
47%
21/45 runs under 3 min
RT coverage: 45 full · 0 partial · 0 no data
Typical delay
+4min
Median at arrival, 90 days
30 days: +1 min
P90
+14min
9 in 10 runs arrive with less than this
30 days: +10 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
- Thu 13 Aug Max en route +23 min · last fix heading to 40238 +20 min
- Mon 10 Aug Max en route +22 min · last fix heading to 40238 +19 min
- Wed 29 Jul Max en route +19 min · last fix heading to 40238 +17 min
- Tue 4 Aug Max en route +18 min · last fix heading to 40238 +16 min
- Wed 23 Sept Max en route +15 min · last fix heading to 40238 +14 min
Distribution · 90 days
45 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 16% · 7
- On time 31% · 14
- 3–10 min 27% · 12
- 10–30 min 27% · 12
- 30+ min 0% · 0
On-time by weekday
- 50% M n=8
- 63% T n=8
- 38% W n=8
- 44% T n=9
- 45% F n=11
- 0% S n=1
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 19 Oct | — 00:00 | 0 min | — |
| Fri 16 Oct | — 00:23 | +6 min | +9 min |
| Thu 15 Oct | — 00:04 | +4 min | +4 min |
| Wed 14 Oct | — 00:00 | 0 min | — |
| Tue 13 Oct | — 00:12 | +12 min | +12 min |
| Mon 12 Oct | — 00:01 | +1 min | +1 min |
| Fri 9 Oct | — 00:15 | −3 min | — |
| Fri 2 Oct | 40238 00:15 | −2 min | — |
| Thu 1 Oct | 40238 00:22 | +5 min | +5 min |
| Wed 30 Sept | 40238 00:22 | +4 min | +6 min |
| Tue 29 Sept | 40238 00:01 | +1 min | +1 min |
| Mon 28 Sept | 40238 00:17 | 0 min | +2 min |
| Fri 25 Sept | 40238 00:15 | −3 min | — |
| Thu 24 Sept | 40238 00:26 | +8 min | +10 min |
| Wed 23 Sept | 40238 00:32 | +14 min | +15 min |
| Tue 22 Sept | 40238 00:18 | 0 min | +3 min |
| Mon 21 Sept | 40238 00:21 | +3 min | +6 min |
| Fri 18 Sept | 40238 00:19 | +2 min | +3 min |
| Thu 17 Sept | 40238 00:18 | 0 min | +3 min |
| Wed 16 Sept | 40238 00:25 | +7 min | +9 min |
| Tue 15 Sept | 40238 00:16 | −2 min | — |
| Mon 14 Sept | 40238 00:26 | +8 min | +10 min |
| Fri 11 Sept | 40238 00:28 | +10 min | +13 min |
| Fri 4 Sept | 40238 00:21 | +4 min | +4 min |
| Thu 3 Sept | 40238 00:20 | +2 min | +4 min |
| Wed 2 Sept | 40238 00:19 | +2 min | +3 min |
| Tue 1 Sept | 40238 00:19 | +1 min | +3 min |
| Mon 31 Aug | 40238 00:27 | +9 min | +12 min |
| Fri 14 Aug | 40238 00:20 | +2 min | +4 min |
| Thu 13 Aug | 40238 00:38 | +20 min | +23 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.