Northern 172A21
View line Northern
Alerts for train 172A21
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Northern.
The mini-map returns when the train runs
On-time · 30 days
72%
18/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
72%
55/76 runs under 3 min
RT coverage: 76 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: 0 min
P90
+4min
9 in 10 runs arrive with less than this
30 days: +4 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
- Mon 21 Sept Max en route +15 min · last fix heading to 18016 +13 min
- Sat 8 Aug Max en route +14 min · last fix heading to 18016 +12 min
- Tue 18 Aug Max en route +12 min · last fix heading to 18016 +8 min
- Tue 25 Aug Max en route +8 min · last fix heading to 18016 +7 min
- Sat 19 Sept Max en route +9 min · last fix heading to 18016 +6 min
Distribution · 90 days
76 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 17% · 13
- On time 55% · 42
- 3–10 min 25% · 19
- 10–30 min 3% · 2
- 30+ min 0% · 0
On-time by weekday
- 50% M n=12
- 77% T n=13
- 92% W n=13
- 67% T n=12
- 92% F n=13
- 54% S n=13
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 17 Oct | Pontefract Monkhill 16:24 | +4 min | +7 min |
| Fri 16 Oct | Pontefract Monkhill 16:24 | +4 min | +8 min |
| Thu 15 Oct | Pontefract Tanshelf 16:17 | −2 min | +1 min |
| Wed 14 Oct | Pontefract Tanshelf 16:18 | −2 min | — |
| Tue 13 Oct | Pontefract Tanshelf 16:23 | +3 min | +5 min |
| Mon 12 Oct | Pontefract Monkhill 16:22 | +2 min | +3 min |
| Sat 10 Oct | Pontefract Tanshelf 16:17 | −2 min | +1 min |
| Fri 9 Oct | Pontefract Monkhill 16:20 | 0 min | +2 min |
| Thu 8 Oct | Pontefract Monkhill 16:21 | +1 min | +2 min |
| Wed 7 Oct | Pontefract Monkhill 16:21 | +1 min | +4 min |
| Tue 6 Oct | Pontefract Monkhill 16:19 | −1 min | +1 min |
| Mon 5 Oct | Pontefract Tanshelf 16:18 | −2 min | — |
| Sat 3 Oct | 18016 16:23 | +4 min | +5 min |
| Fri 2 Oct | 18016 16:21 | +2 min | +3 min |
| Thu 1 Oct | 18016 16:19 | −1 min | +2 min |
| Wed 30 Sept | 18016 16:19 | −1 min | +2 min |
| Tue 29 Sept | 18016 16:20 | 0 min | +2 min |
| Mon 28 Sept | 18016 16:18 | −2 min | — |
| Sat 26 Sept | 18016 16:19 | −1 min | +2 min |
| Fri 25 Sept | 18016 16:20 | 0 min | +2 min |
| Thu 24 Sept | 18016 16:23 | +3 min | +6 min |
| Wed 23 Sept | 18016 16:22 | +2 min | +4 min |
| Tue 22 Sept | 18016 16:19 | −1 min | +1 min |
| Mon 21 Sept | 18016 16:33 | +13 min | +15 min |
| Sat 19 Sept | 18016 16:26 | +6 min | +9 min |
| Fri 18 Sept | 18016 16:18 | −1 min | +1 min |
| Thu 17 Sept | 18016 16:23 | +3 min | +5 min |
| Wed 16 Sept | 18016 16:21 | +1 min | +3 min |
| Tue 15 Sept | 18016 16:19 | −1 min | +2 min |
| Mon 14 Sept | 18016 16:19 | −1 min | +3 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.