Greater Anglia 521N66
View line Greater Anglia
Alerts for train 521N66
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
78%
21/27 runs under 3 min
RT coverage: 27 full · 0 partial · 0 no data
On-time · 90 days
81%
68/84 runs under 3 min
RT coverage: 84 full · 0 partial · 0 no data
Typical delay
−1min
Median at arrival, 90 days
30 days: 0 min
P90
+5min
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
- Thu 24 Sept Max en route +33 min · last fix heading to 50036 +33 min
- Wed 16 Sept Max en route +13 min · last fix heading to Clacton-on-Sea +11 min
- Tue 22 Sept Max en route +11 min · last fix heading to Clacton-on-Sea +9 min
- Tue 29 Sept Max en route +10 min · last fix heading to Clacton-on-Sea +8 min
- Sat 29 Aug Max en route +13 min · last fix heading to Clacton-on-Sea +8 min
Distribution · 90 days
84 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 31% · 26
- On time 50% · 42
- 3–10 min 17% · 14
- 10–30 min 1% · 1
- 30+ min 1% · 1
On-time by weekday
- 82% M n=11
- 83% T n=12
- 77% W n=13
- 85% T n=13
- 92% F n=13
- 77% S n=13
- 67% S n=9
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 10 Oct | Colchester 00:24 | 0 min | +1 min |
| Fri 9 Oct | Clacton-on-Sea 01:00 | −2 min | +2 min |
| Thu 8 Oct | Clacton-on-Sea 01:07 | −1 min | +2 min |
| Wed 7 Oct | Clacton-on-Sea 01:03 | +1 min | +7 min |
| Tue 6 Oct | Clacton-on-Sea 01:07 | +2 min | +10 min |
| Mon 5 Oct | Clacton-on-Sea 01:00 | −1 min | +2 min |
| Sun 4 Oct | — 01:00 | −2 min | — |
| Sat 3 Oct | Clacton-on-Sea 00:59 | −2 min | +1 min |
| Fri 2 Oct | Clacton-on-Sea 00:59 | −1 min | +1 min |
| Thu 1 Oct | Clacton-on-Sea 00:59 | 0 min | +2 min |
| Wed 30 Sept | Clacton-on-Sea 00:59 | −2 min | +8 min |
| Tue 29 Sept | Clacton-on-Sea 00:59 | +8 min | +10 min |
| Mon 28 Sept | Clacton-on-Sea 00:59 | −2 min | +1 min |
| Sat 26 Sept | — 01:00 | −2 min | — |
| Fri 25 Sept | Clacton-on-Sea 00:59 | −2 min | +39 min |
| Thu 24 Sept | 50036 00:59 | +33 min | +33 min |
| Wed 23 Sept | Clacton-on-Sea 00:59 | −3 min | +9 min |
| Tue 22 Sept | Clacton-on-Sea 00:59 | +9 min | +11 min |
| Mon 21 Sept | Clacton-on-Sea 00:59 | +5 min | +8 min |
| Sun 20 Sept | — 01:02 | 0 min | — |
| Sat 19 Sept | Clacton-on-Sea 00:59 | 0 min | +3 min |
| Fri 18 Sept | Clacton-on-Sea 00:59 | +1 min | +3 min |
| Thu 17 Sept | Clacton-on-Sea 00:59 | −2 min | +11 min |
| Wed 16 Sept | Clacton-on-Sea 00:59 | +11 min | +13 min |
| Tue 15 Sept | Clacton-on-Sea 00:59 | −1 min | +4 min |
| Mon 14 Sept | Clacton-on-Sea 00:59 | 0 min | +2 min |
| Sun 13 Sept | — 01:05 | +3 min | +3 min |
| Sat 12 Sept | Clacton-on-Sea 00:59 | +3 min | +5 min |
| Fri 11 Sept | Clacton-on-Sea 00:59 | +2 min | +4 min |
| Thu 10 Sept | Clacton-on-Sea 00:59 | −3 min | +2 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.