Northern 171Y23
View line Northern
Alerts for train 171Y23
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
59%
17/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
58%
52/89 runs under 3 min
RT coverage: 89 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +1 min
P90
+7min
9 in 10 runs arrive with less than this
30 days: +7 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 24 Aug Max en route +19 min · last fix heading to 56550 +18 min
- Mon 31 Aug Max en route +12 min · last fix heading to 56550 +12 min
- Thu 27 Aug Max en route +14 min · last fix heading to 56550 +12 min
- Mon 14 Sept Max en route +11 min · last fix heading to 56550 +11 min
- Fri 18 Sept Max en route +13 min · last fix heading to 56550 +10 min
Distribution · 90 days
89 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 4% · 4
- On time 54% · 48
- 3–10 min 36% · 32
- 10–30 min 6% · 5
- 30+ min 0% · 0
On-time by weekday
- 50% M n=12
- 67% T n=12
- 62% W n=13
- 69% T n=13
- 46% F n=13
- 62% S n=13
- 54% S n=13
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 11 Oct | Ilkeston 17:05 | −1 min | — |
| Sat 10 Oct | Ilkeston 17:05 | −3 min | — |
| Fri 9 Oct | Ilkeston 17:12 | +4 min | +6 min |
| Thu 8 Oct | Ilkeston 17:10 | +2 min | +2 min |
| Wed 7 Oct | Ilkeston 17:07 | −1 min | +2 min |
| Tue 6 Oct | Ilkeston 17:09 | +1 min | +2 min |
| Mon 5 Oct | Ilkeston 17:07 | 0 min | +4 min |
| Sun 4 Oct | 56550 17:13 | +7 min | +8 min |
| Sat 3 Oct | 25705 16:15 | +3 min | +3 min |
| Fri 2 Oct | 56550 17:09 | +1 min | +3 min |
| Thu 1 Oct | 56550 17:09 | +1 min | +2 min |
| Wed 30 Sept | 56550 17:07 | −1 min | +1 min |
| Tue 29 Sept | 56550 17:07 | −1 min | +2 min |
| Mon 28 Sept | 56550 17:08 | 0 min | +4 min |
| Sun 27 Sept | 56550 19:08 | 0 min | — |
| Sat 26 Sept | 56550 17:06 | −2 min | +1 min |
| Fri 25 Sept | 56550 17:12 | +4 min | +4 min |
| Thu 24 Sept | 56550 17:07 | −1 min | +1 min |
| Wed 23 Sept | 56550 17:11 | +3 min | +5 min |
| Tue 22 Sept | 56550 17:14 | +6 min | +6 min |
| Mon 21 Sept | 56550 17:10 | +2 min | +2 min |
| Sun 20 Sept | 56550 17:13 | +7 min | +10 min |
| Sat 19 Sept | 56550 17:16 | +8 min | +8 min |
| Fri 18 Sept | 56550 17:18 | +10 min | +13 min |
| Thu 17 Sept | 56550 17:07 | −1 min | +1 min |
| Wed 16 Sept | 56550 17:08 | 0 min | +1 min |
| Tue 15 Sept | 56550 17:11 | +3 min | +6 min |
| Mon 14 Sept | 56550 17:19 | +11 min | +11 min |
| Sun 13 Sept | 56550 17:13 | +7 min | +11 min |
| Sat 12 Sept | 56550 17:07 | −1 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.