Northern 551Y24
View line Northern
Alerts for train 551Y24
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
66%
19/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
60%
50/83 runs under 3 min
RT coverage: 83 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +1 min
P90
+11min
9 in 10 runs arrive with less than this
30 days: +10 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
- Sun 4 Oct Max en route +33 min · last fix heading to 17196 +30 min
- Thu 30 Jul Max en route +22 min · last fix heading to 17196 +20 min
- Fri 4 Sept Max en route +18 min · last fix heading to 17196 +18 min
- Thu 17 Sept Max en route +13 min · last fix heading to 17196 +13 min
- Fri 16 Oct Max en route +12 min · last fix heading to Langley Mill +12 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 55% · 46
- 3–10 min 27% · 22
- 10–30 min 12% · 10
- 30+ min 1% · 1
On-time by weekday
- 46% M n=13
- 62% T n=13
- 69% W n=13
- 69% T n=13
- 38% F n=13
- 67% S n=9
- 78% S n=9
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 23 Oct | Langley Mill 18:25 | +3 min | +3 min |
| Thu 22 Oct | Langley Mill 18:24 | +1 min | +5 min |
| Wed 21 Oct | Langley Mill 18:33 | +10 min | +10 min |
| Tue 20 Oct | Langley Mill 18:25 | +2 min | +4 min |
| Mon 19 Oct | Langley Mill 18:22 | −1 min | +2 min |
| Sun 18 Oct | Langley Mill 18:23 | 0 min | +8 min |
| Sat 17 Oct | Langley Mill 18:23 | +1 min | +4 min |
| Fri 16 Oct | Langley Mill 18:34 | +12 min | +12 min |
| Thu 15 Oct | Langley Mill 18:25 | +3 min | +7 min |
| Wed 14 Oct | Langley Mill 18:23 | +1 min | +1 min |
| Tue 13 Oct | Langley Mill 18:27 | +5 min | +5 min |
| Mon 12 Oct | — 18:29 | +6 min | +6 min |
| Sun 11 Oct | Langley Mill 18:22 | −1 min | +8 min |
| Sat 10 Oct | — 18:22 | −1 min | +4 min |
| Fri 9 Oct | Langley Mill 18:23 | 0 min | — |
| Thu 8 Oct | Langley Mill 18:25 | +2 min | +6 min |
| Wed 7 Oct | Langley Mill 18:27 | +4 min | +4 min |
| Tue 6 Oct | Langley Mill 18:28 | +6 min | +6 min |
| Mon 5 Oct | Langley Mill 18:23 | 0 min | +4 min |
| Sun 4 Oct | 17196 18:52 | +30 min | +33 min |
| Sat 3 Oct | 17196 18:23 | +1 min | +5 min |
| Fri 2 Oct | 17196 18:22 | 0 min | +8 min |
| Thu 1 Oct | 17196 18:20 | −2 min | +5 min |
| Wed 30 Sept | 17196 18:24 | +1 min | +2 min |
| Tue 29 Sept | 17196 18:22 | −1 min | +2 min |
| Mon 28 Sept | 17196 18:24 | +2 min | +7 min |
| Sun 27 Sept | 17196 18:21 | −1 min | +2 min |
| Sat 26 Sept | 17196 18:35 | +12 min | +12 min |
| Fri 25 Sept | 17196 18:22 | −1 min | +3 min |
| Thu 24 Sept | 17196 18:22 | 0 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.