Transport for Wales 781M12
View line Transport for Wales
Alerts for train 781M12
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
92%
24/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
92%
69/75 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: +2 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 23 Sept Max en route +14 min · last fix heading to Troed-y-Rhiw +14 min
- Tue 8 Sept Max en route +14 min · last fix heading to Troed-y-Rhiw +13 min
- Fri 7 Aug Max en route +12 min · last fix heading to 78527 +9 min
- Sat 3 Oct Max en route +7 min · last fix heading to Merthyr Tydfil +7 min
- Wed 26 Aug Max en route +7 min · last fix heading to Merthyr Tydfil +6 min
Distribution · 90 days
75 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 49% · 37
- On time 43% · 32
- 3–10 min 5% · 4
- 10–30 min 3% · 2
- 30+ min 0% · 0
On-time by weekday
- 100% M n=12
- 92% T n=13
- 85% W n=13
- 92% T n=12
- 92% F n=13
- 92% S n=12
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 21 Oct | Merthyr Tydfil 09:40 | −2 min | +2 min |
| Tue 20 Oct | Merthyr Tydfil 09:41 | −1 min | +2 min |
| Mon 19 Oct | Merthyr Tydfil 09:41 | −1 min | +3 min |
| Sat 17 Oct | Merthyr Tydfil 09:40 | −2 min | +1 min |
| Fri 16 Oct | Merthyr Tydfil 09:40 | −1 min | +2 min |
| Thu 15 Oct | Pentre-Bach 09:44 | +2 min | +4 min |
| Wed 14 Oct | Merthyr Tydfil 09:40 | −2 min | +2 min |
| Tue 13 Oct | Merthyr Tydfil 09:41 | 0 min | +3 min |
| Mon 12 Oct | Merthyr Tydfil 09:41 | −1 min | +2 min |
| Sat 10 Oct | Merthyr Tydfil 09:41 | −1 min | +1 min |
| Fri 9 Oct | Pentre-Bach 09:42 | +1 min | +4 min |
| Thu 8 Oct | Merthyr Tydfil 09:40 | −2 min | +2 min |
| Wed 7 Oct | Pentre-Bach 09:39 | −3 min | +3 min |
| Tue 6 Oct | Merthyr Tydfil 09:41 | −1 min | +8 min |
| Mon 5 Oct | Merthyr Tydfil 09:40 | −2 min | +2 min |
| Sat 3 Oct | Merthyr Tydfil 13:59 | +7 min | +7 min |
| Fri 2 Oct | Merthyr Tydfil 09:40 | −2 min | +4 min |
| Thu 1 Oct | Merthyr Tydfil 09:40 | −1 min | +2 min |
| Wed 30 Sept | Merthyr Tydfil 09:42 | +1 min | +6 min |
| Tue 29 Sept | Merthyr Tydfil 09:40 | −2 min | +2 min |
| Mon 28 Sept | Merthyr Tydfil 09:41 | 0 min | +2 min |
| Sat 26 Sept | Merthyr Tydfil 09:40 | −2 min | +2 min |
| Fri 25 Sept | Merthyr Tydfil 09:41 | −1 min | +2 min |
| Thu 24 Sept | Merthyr Tydfil 09:42 | 0 min | +2 min |
| Wed 23 Sept | Troed-y-Rhiw 09:43 | +14 min | +14 min |
| Tue 22 Sept | Merthyr Tydfil 09:39 | −2 min | +1 min |
| Mon 21 Sept | Merthyr Tydfil 09:40 | −2 min | +2 min |
| Sat 19 Sept | Merthyr Tydfil 09:40 | −2 min | +1 min |
| Fri 18 Sept | Merthyr Tydfil 10:16 | 0 min | +1 min |
| Thu 17 Sept | Merthyr Tydfil 09:41 | −1 min | +2 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.