Northern 172B21
View line Northern
Alerts for train 172B21
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
90%
26/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
74%
65/88 runs under 3 min
RT coverage: 88 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+5min
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
- Tue 1 Sept Max en route +30 min · last fix heading to Doncaster +28 min
- Fri 21 Aug Max en route +25 min · last fix heading to Doncaster +23 min
- Sun 16 Aug Max en route +29 min · last fix heading to Doncaster +22 min
- Mon 12 Oct Max en route +14 min · last fix heading to Doncaster +12 min
- Thu 20 Aug Max en route +11 min · last fix heading to Doncaster +11 min
Distribution · 90 days
88 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 23% · 20
- On time 51% · 45
- 3–10 min 20% · 18
- 10–30 min 6% · 5
- 30+ min 0% · 0
On-time by weekday
- 69% M n=13
- 85% T n=13
- 58% W n=12
- 45% T n=11
- 85% F n=13
- 77% S n=13
- 92% S n=13
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 20 Oct | Doncaster 16:15 | 0 min | +3 min |
| Mon 19 Oct | Doncaster 16:15 | +2 min | +4 min |
| Sun 18 Oct | Doncaster 16:16 | +2 min | +4 min |
| Sat 17 Oct | Doncaster 16:11 | −2 min | +1 min |
| Fri 16 Oct | Doncaster 16:15 | +1 min | +3 min |
| Thu 15 Oct | Bentley (S Yorks) 16:14 | 0 min | +2 min |
| Wed 14 Oct | Doncaster 16:14 | 0 min | +3 min |
| Tue 13 Oct | Doncaster 16:16 | +2 min | +3 min |
| Mon 12 Oct | Doncaster 16:26 | +12 min | +14 min |
| Sun 11 Oct | Doncaster 16:15 | +1 min | +3 min |
| Sat 10 Oct | Doncaster 16:16 | +3 min | +5 min |
| Fri 9 Oct | Doncaster 16:12 | −2 min | +3 min |
| Thu 8 Oct | Doncaster 16:14 | 0 min | +1 min |
| Wed 7 Oct | Doncaster 16:11 | −3 min | — |
| Tue 6 Oct | Doncaster 16:11 | −3 min | — |
| Mon 5 Oct | Doncaster 16:11 | −3 min | — |
| Sun 4 Oct | Doncaster 16:16 | +2 min | +4 min |
| Sat 3 Oct | Doncaster 16:11 | −3 min | +1 min |
| Fri 2 Oct | Doncaster 16:17 | +3 min | +6 min |
| Thu 1 Oct | Doncaster 16:15 | +1 min | +4 min |
| Wed 30 Sept | Doncaster 16:12 | −2 min | +1 min |
| Tue 29 Sept | Doncaster 16:13 | −1 min | +2 min |
| Mon 28 Sept | Doncaster 16:12 | −2 min | +1 min |
| Sun 27 Sept | Doncaster 16:14 | +1 min | +4 min |
| Sat 26 Sept | Doncaster 16:15 | +1 min | +1 min |
| Fri 25 Sept | Doncaster 16:14 | 0 min | +3 min |
| Thu 24 Sept | Doncaster 16:14 | 0 min | +3 min |
| Wed 23 Sept | Doncaster 16:14 | 0 min | +2 min |
| Tue 22 Sept | Doncaster 16:14 | 0 min | +2 min |
| Mon 21 Sept | Doncaster 16:22 | +7 min | +10 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.