Northern 551Y28
View line Northern
Alerts for train 551Y28
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
61%
51/83 runs under 3 min
RT coverage: 83 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +2 min
P90
+12min
9 in 10 runs arrive with less than this
30 days: +14 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 11 Aug Max en route +22 min · last fix heading to 17196 +22 min
- Sat 24 Oct Max en route +21 min · last fix heading to Langley Mill +21 min
- Wed 28 Oct Max en route +20 min · last fix heading to Langley Mill +17 min
- Fri 9 Oct Max en route +18 min · last fix heading to Langley Mill +16 min
- Sat 26 Sept Max en route +14 min · last fix heading to 17196 +14 min
Distribution · 90 days
83 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 5% · 4
- On time 57% · 47
- 3–10 min 23% · 19
- 10–30 min 16% · 13
- 30+ min 0% · 0
On-time by weekday
- 62% M n=13
- 62% T n=13
- 67% W n=12
- 83% T n=12
- 69% F n=13
- 30% S n=10
- 50% S n=10
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 3 Nov | Langley Mill 20:12 | −1 min | +5 min |
| Mon 2 Nov | Langley Mill 20:14 | 0 min | +4 min |
| Sun 1 Nov | Langley Mill 20:14 | +1 min | +7 min |
| Sat 31 Oct | — 20:28 | +7 min | +7 min |
| Fri 30 Oct | — 20:20 | −1 min | +6 min |
| Thu 29 Oct | Langley Mill 20:24 | +2 min | +9 min |
| Wed 28 Oct | Langley Mill 20:39 | +17 min | +20 min |
| Tue 27 Oct | Langley Mill 20:23 | +1 min | +7 min |
| Mon 26 Oct | Langley Mill 20:33 | +12 min | +12 min |
| Sun 25 Oct | Langley Mill 20:32 | +9 min | +11 min |
| Sat 24 Oct | Langley Mill 20:42 | +21 min | +21 min |
| Fri 23 Oct | Langley Mill 20:23 | +1 min | +2 min |
| Thu 22 Oct | Langley Mill 20:22 | 0 min | +1 min |
| Wed 21 Oct | — 20:24 | +2 min | +6 min |
| Tue 20 Oct | Langley Mill 20:25 | +3 min | +5 min |
| Mon 19 Oct | Langley Mill 20:26 | +3 min | +8 min |
| Sun 18 Oct | Langley Mill 19:26 | +4 min | +4 min |
| Sat 17 Oct | Langley Mill 20:27 | +5 min | +8 min |
| Fri 16 Oct | Langley Mill 20:23 | +2 min | +6 min |
| Thu 15 Oct | Langley Mill 20:21 | −1 min | +4 min |
| Wed 14 Oct | Langley Mill 20:24 | +2 min | +8 min |
| Tue 13 Oct | Langley Mill 20:24 | +2 min | +5 min |
| Mon 12 Oct | Langley Mill 20:21 | 0 min | +2 min |
| Sun 11 Oct | Langley Mill 20:20 | −2 min | +3 min |
| Sat 10 Oct | Langley Mill 20:34 | +13 min | +13 min |
| Fri 9 Oct | Langley Mill 20:37 | +16 min | +18 min |
| Thu 8 Oct | Langley Mill 20:22 | +1 min | +5 min |
| Wed 7 Oct | Langley Mill 20:24 | +3 min | +7 min |
| Tue 6 Oct | Langley Mill 20:23 | +2 min | +3 min |
| Mon 5 Oct | Langley Mill 20:24 | +3 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.