Transport for Wales 781M34

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Mon, Tue, Wed, Thu, Fri, Sat Transport for Wales

Running now · updated 14:33

Running now 0 min

Today it is running worse than usual: typical arrival delay is −1 min; 92% of the last 26 runs arrived on time.

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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%

71/77 runs under 3 min

RT coverage: 77 full · 0 partial · 0 no data

Typical delay

−1min

Median at arrival, 90 days

30 days: −1 min

P90

+1min

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 14 Oct Max en route +38 min · last fix heading to Waun-gron Park +36 min
Thu 17 Sept Max en route +16 min · last fix heading to Troed-y-Rhiw +16 min
Fri 23 Oct Max en route +10 min · last fix heading to Pentre-Bach +8 min
Sat 22 Aug Max en route +10 min · last fix heading to Merthyr Tydfil +8 min
Wed 2 Sept Max en route +9 min · last fix heading to Merthyr Tydfil +4 min

Distribution · 90 days

77 runs with a known final delay. On time = under 3 min, the same cut the map uses.

Early 40% · 31
On time 52% · 40
3–10 min 5% · 4
10–30 min 1% · 1
30+ min 1% · 1

On-time by weekday

100% M n=13
100% T n=13
83% W n=12
85% T n=13
92% F n=13
92% S n=13
— S n=0

Recent runs

Date	Last stop	Final	Max
Sat 7 Nov	Pontypridd 14:29	0 min	+2 min
Fri 6 Nov	Merthyr Tydfil 14:59	0 min	+2 min
Thu 5 Nov	Merthyr Tydfil 14:59	0 min	+1 min
Wed 4 Nov	Merthyr Tydfil 15:04	0 min	+3 min
Tue 3 Nov	Merthyr Tydfil 15:04	0 min	+1 min
Mon 2 Nov	Pentre-Bach 14:59	−3 min	+2 min
Sat 31 Oct	Merthyr Tydfil 15:09	−3 min	+1 min
Fri 30 Oct	Pentre-Bach 15:12	0 min	+2 min
Thu 29 Oct	Pentre-Bach 15:12	0 min	+4 min
Wed 28 Oct	Merthyr Tydfil 15:11	−1 min	+2 min
Tue 27 Oct	Pentre-Bach 15:13	+1 min	+4 min
Mon 26 Oct	Pentre-Bach 15:13	+2 min	+4 min
Sat 24 Oct	Merthyr Tydfil 15:10	−2 min	+1 min
Fri 23 Oct	Pentre-Bach 15:11	+8 min	+10 min
Thu 22 Oct	Merthyr Tydfil 15:11	−1 min	+2 min
Wed 21 Oct	Merthyr Tydfil 15:09	−2 min	+2 min
Tue 20 Oct	Merthyr Tydfil 15:10	−2 min	+1 min
Mon 19 Oct	Merthyr Tydfil 15:10	−2 min	+1 min
Sat 17 Oct	Merthyr Tydfil 15:10	−1 min	+4 min
Fri 16 Oct	Merthyr Tydfil 15:10	−2 min	+1 min
Thu 15 Oct	Merthyr Tydfil 15:10	−2 min	+2 min
Wed 14 Oct	Waun-gron Park 14:38	+36 min	+38 min
Tue 13 Oct	Merthyr Tydfil 15:11	−1 min	+5 min
Mon 12 Oct	Merthyr Tydfil 15:10	−2 min	+4 min
Sat 10 Oct	Merthyr Tydfil 15:09	−2 min	+2 min
Fri 9 Oct	Merthyr Tydfil 15:10	−2 min	+5 min
Thu 8 Oct	Merthyr Tydfil 15:10	−1 min	+2 min
Wed 7 Oct	Merthyr Tydfil 15:09	−3 min	+1 min
Tue 6 Oct	Merthyr Tydfil 15:10	−2 min	+2 min
Mon 5 Oct	Merthyr Tydfil 15:11	−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.