Northern 551Y30
View line Northern
Alerts for train 551Y30
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
63%
52/83 runs under 3 min
RT coverage: 83 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +1 min
P90
+6min
9 in 10 runs arrive with less than this
30 days: +8 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
- Wed 12 Aug Max en route +20 min · last fix heading to 17196 +20 min
- Wed 7 Oct Max en route +19 min · last fix heading to Langley Mill +19 min
- Fri 24 Jul Max en route +19 min · last fix heading to 17196 +17 min
- Sat 12 Sept Max en route +13 min · last fix heading to 17196 +13 min
- Thu 24 Sept Max en route +13 min · last fix heading to 25635 +10 min
Distribution · 90 days
83 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 7% · 6
- On time 55% · 46
- 3–10 min 30% · 25
- 10–30 min 7% · 6
- 30+ min 0% · 0
On-time by weekday
- 58% M n=12
- 92% T n=13
- 69% W n=13
- 54% T n=13
- 77% F n=13
- 30% S n=10
- 44% S n=9
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 10 Oct | — 21:24 | +2 min | +2 min |
| Fri 9 Oct | Langley Mill 21:21 | −2 min | +1 min |
| Thu 8 Oct | Langley Mill 21:25 | +1 min | +4 min |
| Wed 7 Oct | Langley Mill 21:42 | +19 min | +19 min |
| Tue 6 Oct | Langley Mill 21:20 | −3 min | +2 min |
| Mon 5 Oct | Langley Mill 21:29 | +6 min | +11 min |
| Sun 4 Oct | 17196 21:21 | +1 min | +2 min |
| Sat 3 Oct | 17196 21:17 | 0 min | +2 min |
| Fri 2 Oct | 17196 21:23 | 0 min | +4 min |
| Thu 1 Oct | 17196 21:24 | 0 min | +5 min |
| Wed 30 Sept | 17196 21:23 | 0 min | +4 min |
| Tue 29 Sept | 17196 21:23 | 0 min | +2 min |
| Mon 28 Sept | 17196 21:32 | +8 min | +10 min |
| Sun 27 Sept | 17196 21:24 | +3 min | +5 min |
| Sat 26 Sept | 17196 21:26 | +4 min | +7 min |
| Fri 25 Sept | 17196 21:24 | 0 min | +7 min |
| Thu 24 Sept | 25635 20:30 | +10 min | +13 min |
| Wed 23 Sept | 17196 21:26 | +2 min | +7 min |
| Tue 22 Sept | 17196 21:24 | +1 min | +4 min |
| Mon 21 Sept | 17196 21:23 | −1 min | +4 min |
| Sun 20 Sept | 17196 21:23 | +3 min | +7 min |
| Sat 19 Sept | 17196 21:27 | +6 min | +8 min |
| Fri 18 Sept | 17196 21:23 | 0 min | +4 min |
| Thu 17 Sept | 17196 21:27 | +4 min | +13 min |
| Wed 16 Sept | 17196 21:22 | −1 min | +5 min |
| Tue 15 Sept | 17196 21:27 | +4 min | +4 min |
| Mon 14 Sept | 17196 21:23 | −1 min | +2 min |
| Sun 13 Sept | 17196 21:25 | +4 min | +5 min |
| Sat 12 Sept | 17196 21:35 | +13 min | +13 min |
| Fri 11 Sept | 17196 21:25 | 0 min | +6 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.