Greater Anglia 501K81
View line Greater Anglia
Alerts for train 501K81
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Greater Anglia.
The mini-map returns when the train runs
On-time · 30 days
92%
22/24 runs under 3 min
RT coverage: 24 full · 0 partial · 0 no data
On-time · 90 days
89%
58/65 runs under 3 min
RT coverage: 65 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+4min
9 in 10 runs arrive with less than this
30 days: +2 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
- Fri 7 Aug Max en route +97 min · last fix heading to London Liverpool Street +96 min
- Fri 4 Sept Max en route +14 min · last fix heading to London Liverpool Street +13 min
- Fri 28 Aug Max en route +11 min · last fix heading to London Liverpool Street +11 min
- Fri 9 Oct Max en route +10 min · last fix heading to London Liverpool Street +10 min
- Wed 7 Oct Max en route +8 min · last fix heading to London Liverpool Street +8 min
Distribution · 90 days
65 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 18% · 12
- On time 71% · 46
- 3–10 min 5% · 3
- 10–30 min 5% · 3
- 30+ min 2% · 1
On-time by weekday
- 100% M n=11
- 100% T n=10
- 92% W n=12
- 82% T n=11
- 60% F n=10
- 100% S n=11
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 28 Oct | London Liverpool Street 16:35 | −1 min | +3 min |
| Tue 27 Oct | London Liverpool Street 16:35 | −2 min | +1 min |
| Mon 26 Oct | London Liverpool Street 16:35 | −1 min | +1 min |
| Sat 24 Oct | Billericay 16:37 | +1 min | +3 min |
| Fri 23 Oct | London Liverpool Street 16:35 | −1 min | +2 min |
| Thu 22 Oct | London Liverpool Street 16:35 | −1 min | +3 min |
| Wed 21 Oct | London Liverpool Street 16:35 | −1 min | +2 min |
| Tue 20 Oct | Billericay 16:38 | +1 min | +3 min |
| Mon 19 Oct | Billericay 16:37 | +1 min | +3 min |
| Sat 17 Oct | Ilford 16:38 | +2 min | +4 min |
| Fri 16 Oct | Billericay 16:36 | 0 min | +2 min |
| Thu 15 Oct | Billericay 16:37 | 0 min | +3 min |
| Wed 14 Oct | Billericay 16:37 | +1 min | +3 min |
| Tue 13 Oct | London Liverpool Street 16:35 | −1 min | +2 min |
| Mon 12 Oct | Billericay 16:39 | +2 min | +4 min |
| Sat 10 Oct | Billericay 16:36 | 0 min | +3 min |
| Fri 9 Oct | London Liverpool Street 16:47 | +10 min | +10 min |
| Thu 8 Oct | Billericay 16:37 | 0 min | +3 min |
| Wed 7 Oct | London Liverpool Street 16:44 | +8 min | +8 min |
| Mon 5 Oct | Billericay 16:27 | −1 min | +3 min |
| Sat 3 Oct | London Liverpool Street 16:35 | −2 min | +3 min |
| Fri 2 Oct | London Liverpool Street 16:34 | −2 min | +3 min |
| Thu 1 Oct | London Liverpool Street 16:35 | −1 min | +2 min |
| Wed 30 Sept | London Liverpool Street 16:35 | −1 min | +3 min |
| Tue 29 Sept | London Liverpool Street 16:36 | 0 min | +3 min |
| Mon 28 Sept | London Liverpool Street 16:36 | −1 min | +3 min |
| Sat 26 Sept | London Liverpool Street 16:38 | +2 min | +6 min |
| Fri 25 Sept | London Liverpool Street 16:38 | +2 min | +5 min |
| Thu 24 Sept | London Liverpool Street 16:35 | −1 min | +2 min |
| Wed 23 Sept | London Liverpool Street 16:36 | 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.