Transport for Wales 781M40
View line Transport for Wales
Alerts for train 781M40
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
96%
23/24 runs under 3 min
RT coverage: 24 full · 0 partial · 0 no data
On-time · 90 days
95%
71/75 runs under 3 min
RT coverage: 75 full · 0 partial · 0 no data
Typical delay
−1min
Median at arrival, 90 days
30 days: −1 min
P90
+2min
9 in 10 runs arrive with less than this
30 days: +1 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
- Wed 16 Sept Max en route +98 min · last fix heading to Merthyr Tydfil +98 min
- Sat 5 Sept Max en route +14 min · last fix heading to Merthyr Tydfil +14 min
- Sat 17 Oct Max en route +8 min · last fix heading to Merthyr Tydfil +7 min
- Tue 25 Aug Max en route +5 min · last fix heading to Abercynon +5 min
Distribution · 90 days
75 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 41% · 31
- On time 53% · 40
- 3–10 min 3% · 2
- 10–30 min 1% · 1
- 30+ min 1% · 1
On-time by weekday
- 100% M n=13
- 92% T n=13
- 91% W n=11
- 100% T n=13
- 100% F n=13
- 83% S n=12
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 6 Nov | Merthyr Tydfil 16:32 | −1 min | +2 min |
| Thu 5 Nov | Pentre-Bach 16:34 | +1 min | +3 min |
| Wed 4 Nov | Merthyr Tydfil 16:34 | 0 min | +3 min |
| Tue 3 Nov | Merthyr Tydfil 16:32 | −2 min | +2 min |
| Mon 2 Nov | Merthyr Tydfil 16:29 | 0 min | +1 min |
| Sat 31 Oct | Pentre-Bach 16:43 | +2 min | +7 min |
| Fri 30 Oct | Merthyr Tydfil 16:40 | −2 min | +4 min |
| Thu 29 Oct | Pentre-Bach 16:42 | 0 min | +6 min |
| Wed 28 Oct | Merthyr Tydfil 16:40 | −2 min | +3 min |
| Tue 27 Oct | Merthyr Tydfil 16:42 | 0 min | +5 min |
| Mon 26 Oct | Merthyr Tydfil 16:39 | −2 min | +4 min |
| Sat 24 Oct | Merthyr Tydfil 16:40 | −2 min | +1 min |
| Fri 23 Oct | Merthyr Tydfil 16:41 | −1 min | +5 min |
| Thu 22 Oct | Merthyr Tydfil 16:40 | −1 min | +2 min |
| Wed 21 Oct | Merthyr Tydfil 16:40 | −2 min | +1 min |
| Tue 20 Oct | Merthyr Tydfil 16:41 | −1 min | +2 min |
| Mon 19 Oct | Pentre-Bach 16:41 | −1 min | +2 min |
| Sat 17 Oct | Merthyr Tydfil 23:01 | +7 min | +8 min |
| Fri 16 Oct | Merthyr Tydfil 16:41 | 0 min | +2 min |
| Thu 15 Oct | Merthyr Tydfil 16:39 | −2 min | +1 min |
| Tue 13 Oct | Pentre-Bach 16:41 | 0 min | +2 min |
| Mon 12 Oct | Merthyr Tydfil 16:40 | −2 min | +2 min |
| Sat 10 Oct | Merthyr Tydfil 16:40 | −2 min | +1 min |
| Fri 9 Oct | Merthyr Tydfil 16:40 | −2 min | +2 min |
| Thu 8 Oct | Merthyr Tydfil 16:39 | −2 min | +2 min |
| Wed 7 Oct | Merthyr Tydfil 16:41 | 0 min | +2 min |
| Tue 6 Oct | Pentre-Bach 16:42 | 0 min | +3 min |
| Mon 5 Oct | Troed-y-Rhiw 16:22 | 0 min | +3 min |
| Sat 3 Oct | Merthyr Tydfil 16:40 | −2 min | +2 min |
| Fri 2 Oct | Merthyr Tydfil 16:40 | −2 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.