Transport for Wales 781A20

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Running now · updated 11:21

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

89%

67/75 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

+3min

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

Fri 7 Aug Max en route +4 min · last fix heading to Radyr +4 min
Mon 12 Oct Max en route +8 min · last fix heading to Fernhill +3 min
Wed 23 Sept Max en route +15 min · last fix heading to 78102 +3 min
Fri 14 Aug Max en route +4 min · last fix heading to Radyr +3 min
Thu 13 Aug Max en route +5 min · last fix heading to Radyr +3 min

Distribution · 90 days

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

Early 17% · 13
On time 72% · 54
3–10 min 11% · 8
10–30 min 0% · 0
30+ min 0% · 0

On-time by weekday

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

Recent runs

Date	Last stop	Final	Max
Tue 13 Oct	Abercynon 11:19	0 min	+2 min
Mon 12 Oct	Fernhill 11:58	+3 min	+8 min
Sat 10 Oct	Mountain Ash 11:53	−1 min	+1 min
Fri 9 Oct	Mountain Ash 11:55	−1 min	—
Thu 8 Oct	Mountain Ash 11:53	−2 min	—
Wed 7 Oct	Mountain Ash 11:54	−1 min	+1 min
Tue 6 Oct	Fernhill 11:53	−2 min	+1 min
Mon 5 Oct	Mountain Ash 11:53	−2 min	+1 min
Sat 3 Oct	78102 11:57	+2 min	+5 min
Fri 2 Oct	78102 11:54	−1 min	+2 min
Thu 1 Oct	78102 11:55	0 min	+3 min
Wed 30 Sept	78102 11:54	−1 min	+1 min
Tue 29 Sept	78102 11:53	−2 min	—
Mon 28 Sept	78102 11:53	−2 min	+4 min
Sat 26 Sept	78102 11:53	−2 min	+1 min
Fri 25 Sept	78102 11:54	−1 min	+2 min
Thu 24 Sept	78102 11:54	−1 min	+2 min
Wed 23 Sept	78102 11:58	+3 min	+15 min
Tue 22 Sept	78102 11:54	−1 min	+1 min
Mon 21 Sept	78102 11:53	−2 min	+1 min
Sat 19 Sept	78102 11:54	−1 min	+1 min
Fri 18 Sept	78102 11:56	+1 min	+3 min
Thu 17 Sept	78102 11:54	−1 min	+3 min
Wed 16 Sept	78102 11:53	−2 min	—
Tue 15 Sept	78102 11:54	−1 min	+1 min
Mon 14 Sept	78102 11:53	−2 min	—
Sat 12 Sept	78102 11:54	−2 min	+2 min
Fri 11 Sept	78102 11:55	−1 min	+1 min
Thu 10 Sept	78102 11:54	−1 min	+1 min
Wed 9 Sept	78102 11:55	0 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.