Northern 172L81
View line Northern
Alerts for train 172L81
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
68%
17/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
63%
48/76 runs under 3 min
RT coverage: 76 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +1 min
P90
+7min
9 in 10 runs arrive with less than this
30 days: +5 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
- Sat 8 Aug Max en route +39 min · last fix heading to 25319 +33 min
- Fri 4 Sept Max en route +19 min · last fix heading to 25319 +19 min
- Sat 3 Oct Max en route +27 min · last fix heading to 25319 +18 min
- Sat 1 Aug Max en route +13 min · last fix heading to 25319 +13 min
- Thu 6 Aug Max en route +11 min · last fix heading to 25319 +11 min
Distribution · 90 days
76 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 16% · 12
- On time 47% · 36
- 3–10 min 30% · 23
- 10–30 min 5% · 4
- 30+ min 1% · 1
On-time by weekday
- 85% M n=13
- 62% T n=13
- 69% W n=13
- 58% T n=12
- 42% F n=12
- 62% S n=13
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 21 Oct | Chapeltown 22:01 | −1 min | — |
| Tue 20 Oct | Chapeltown 22:03 | +1 min | +3 min |
| Mon 19 Oct | Chapeltown 22:00 | −1 min | — |
| Sat 17 Oct | Chapeltown 22:03 | −3 min | — |
| Fri 16 Oct | Chapeltown 22:03 | +2 min | +2 min |
| Thu 15 Oct | Chapeltown 22:04 | +3 min | +3 min |
| Wed 14 Oct | Chapeltown 22:02 | 0 min | +1 min |
| Tue 13 Oct | Chapeltown 22:03 | +2 min | +2 min |
| Mon 12 Oct | Chapeltown 22:02 | +1 min | +1 min |
| Sat 10 Oct | Chapeltown 22:12 | +5 min | +13 min |
| Fri 9 Oct | Chapeltown 21:59 | −2 min | +1 min |
| Thu 8 Oct | Chapeltown 22:06 | +5 min | +5 min |
| Wed 7 Oct | Chapeltown 22:10 | +9 min | +9 min |
| Tue 6 Oct | Chapeltown 22:05 | +4 min | +4 min |
| Mon 5 Oct | Chapeltown 22:03 | +2 min | +2 min |
| Sat 3 Oct | 25319 22:24 | +18 min | +27 min |
| Fri 2 Oct | 25319 22:01 | 0 min | +2 min |
| Thu 1 Oct | 25319 22:04 | +2 min | +2 min |
| Wed 30 Sept | 25319 22:03 | +1 min | +5 min |
| Tue 29 Sept | 25319 21:59 | −2 min | — |
| Mon 28 Sept | 25319 22:01 | −1 min | — |
| Sat 26 Sept | 25319 22:03 | −3 min | +4 min |
| Fri 25 Sept | 25319 22:04 | +3 min | +4 min |
| Thu 24 Sept | 25319 22:05 | +3 min | +4 min |
| Wed 23 Sept | 25319 22:00 | −1 min | +3 min |
| Tue 22 Sept | 25319 22:05 | +4 min | +5 min |
| Mon 21 Sept | 25319 22:05 | +3 min | +6 min |
| Sat 19 Sept | 25319 22:04 | −2 min | +1 min |
| Fri 18 Sept | 25319 22:01 | 0 min | +1 min |
| Thu 17 Sept | 25319 22:04 | +2 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.