Northern 172P21
View line Northern
Alerts for train 172P21
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 ยท 30 days
90%
27/30 runs under 3 min
RT coverage: 30 full ยท 0 partial ยท 0 no data
On-time ยท 90 days
94%
80/85 runs under 3 min
RT coverage: 85 full ยท 0 partial ยท 0 no data
Typical delay
โ1min
Median at arrival, 90 days
30 days: โ1 min
P90
+1min
9 in 10 runs arrive with less than this
30 days: +1 min
Last 30 days
Delay at the end of each run, in minutes. One bar per run.
- On time (<3 min)
- 3โ10 min
- 10โ30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Fri 4 Sept Max en route +40 min ยท last fix heading to 17136 +40 min
- Mon 12 Oct Max en route +7 min ยท last fix heading to Frizinghall +6 min
- Sun 20 Sept Max en route +5 min ยท last fix heading to 17136 +5 min
- Mon 21 Sept Max en route +3 min ยท last fix heading to 17136 +3 min
- Tue 8 Sept Max en route +3 min ยท last fix heading to 17136 +3 min
Distribution ยท 90 days
85 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 2% ยท 2
- On time 92% ยท 78
- 3โ10 min 5% ยท 4
- 10โ30 min 0% ยท 0
- 30+ min 1% ยท 1
On-time by weekday
- 83% M n=12
- 92% T n=13
- 100% W n=13
- 100% T n=12
- 92% F n=13
- 100% S n=12
- 90% S n=10
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 14 Oct | Frizinghall 07:26 | โ1 min | โ |
| Tue 13 Oct | Frizinghall 07:27 | โ1 min | โ |
| Mon 12 Oct | Frizinghall 07:34 | +6 min | +7 min |
| Sun 11 Oct | Shipley 18:48 | +1 min | +2 min |
| Sat 10 Oct | Frizinghall 07:26 | โ1 min | โ |
| Fri 9 Oct | Frizinghall 07:27 | 0 min | โ |
| Thu 8 Oct | โ 07:27 | โ1 min | โ |
| Wed 7 Oct | Frizinghall 07:27 | 0 min | โ |
| Tue 6 Oct | Frizinghall 07:27 | โ1 min | โ |
| Mon 5 Oct | 17136 07:27 | 0 min | +1 min |
| Sun 4 Oct | 17136 18:47 | โ1 min | +1 min |
| Sat 3 Oct | 17136 07:28 | 0 min | โ |
| Fri 2 Oct | 17136 07:27 | โ1 min | โ |
| Thu 1 Oct | 17136 07:27 | 0 min | +1 min |
| Wed 30 Sept | 17136 07:27 | 0 min | +1 min |
| Tue 29 Sept | 17136 07:28 | 0 min | +1 min |
| Mon 28 Sept | 17136 07:28 | 0 min | +1 min |
| Sun 27 Sept | 17136 18:47 | 0 min | +1 min |
| Sat 26 Sept | 17136 07:27 | โ1 min | โ |
| Fri 25 Sept | 17136 07:27 | โ1 min | โ |
| Thu 24 Sept | 17136 07:27 | โ1 min | โ |
| Wed 23 Sept | 17136 07:27 | โ1 min | โ |
| Tue 22 Sept | 17136 07:27 | 0 min | +1 min |
| Mon 21 Sept | 17136 07:31 | +3 min | +3 min |
| Sun 20 Sept | 17136 18:52 | +5 min | +5 min |
| Sat 19 Sept | 17136 07:27 | โ1 min | โ |
| Fri 18 Sept | 17136 07:27 | โ1 min | โ |
| Thu 17 Sept | 17136 07:27 | โ1 min | โ |
| Wed 16 Sept | 17136 07:26 | โ1 min | โ |
| Tue 15 Sept | 17136 07:27 | โ1 min | โ |
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.