Northern 551Y34
View line Northern
Alerts for train 551Y34
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
32%
8/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
26%
19/73 runs under 3 min
RT coverage: 73 full · 0 partial · 0 no data
Typical delay
+4min
Median at arrival, 90 days
30 days: +3 min
P90
+14min
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
- Tue 8 Sept Max en route +47 min · last fix heading to 17196 +47 min
- Thu 30 Jul Max en route +37 min · last fix heading to 17196 +35 min
- Sat 19 Sept Max en route +34 min · last fix heading to 17196 +31 min
- Wed 26 Aug Max en route +22 min · last fix heading to 17196 +22 min
- Mon 27 Jul Max en route +17 min · last fix heading to 17196 +17 min
Distribution · 90 days
73 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 4% · 3
- On time 22% · 16
- 3–10 min 52% · 38
- 10–30 min 18% · 13
- 30+ min 4% · 3
On-time by weekday
- 31% M n=13
- 17% T n=12
- 33% W n=12
- 15% T n=13
- 23% F n=13
- 40% S n=10
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 12 Oct | — 23:24 | +3 min | +3 min |
| Sat 10 Oct | — 23:24 | +3 min | +5 min |
| Fri 9 Oct | Langley Mill 23:20 | −1 min | +2 min |
| Thu 8 Oct | — 23:24 | +3 min | +3 min |
| Wed 7 Oct | Langley Mill 23:26 | +5 min | +5 min |
| Tue 6 Oct | Langley Mill 23:28 | +8 min | +8 min |
| Mon 5 Oct | Langley Mill 23:22 | +2 min | +4 min |
| Sat 3 Oct | 17196 23:18 | +4 min | +7 min |
| Fri 2 Oct | 17196 23:20 | 0 min | +4 min |
| Thu 1 Oct | 17196 23:23 | +3 min | +5 min |
| Wed 30 Sept | 25635 22:28 | +5 min | +5 min |
| Tue 29 Sept | 17196 23:20 | 0 min | +3 min |
| Mon 28 Sept | 17196 23:24 | +4 min | +5 min |
| Sat 26 Sept | 17196 23:21 | +1 min | +4 min |
| Fri 25 Sept | 17196 23:25 | +4 min | +4 min |
| Thu 24 Sept | 25635 22:34 | +9 min | +15 min |
| Wed 23 Sept | 17196 23:21 | +1 min | +4 min |
| Tue 22 Sept | 17196 23:26 | +5 min | +10 min |
| Mon 21 Sept | 17196 23:23 | +2 min | +6 min |
| Sat 19 Sept | 17196 23:52 | +31 min | +34 min |
| Fri 18 Sept | 17196 23:23 | +3 min | +6 min |
| Thu 17 Sept | 17196 23:25 | +5 min | +10 min |
| Wed 16 Sept | 17196 23:23 | +2 min | +7 min |
| Tue 15 Sept | 17196 23:23 | +3 min | +6 min |
| Mon 14 Sept | 17196 23:27 | +7 min | +7 min |
| Sat 12 Sept | 17196 23:23 | +3 min | +5 min |
| Fri 11 Sept | 17196 23:23 | +3 min | +4 min |
| Thu 10 Sept | 17196 23:26 | +6 min | +11 min |
| Wed 9 Sept | 17196 23:23 | +3 min | +6 min |
| Tue 8 Sept | 17196 00:08 | +47 min | +47 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.