Greater Anglia 521K20
View line Greater Anglia
Alerts for train 521K20
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
44%
11/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
47%
32/68 runs under 3 min
RT coverage: 68 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +3 min
P90
+8min
9 in 10 runs arrive with less than this
30 days: +7 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
- Mon 7 Sept Max en route +27 min · last fix heading to Southend Victoria +23 min
- Wed 21 Oct Max en route +14 min · last fix heading to Southend Airport +13 min
- Wed 16 Sept Max en route +13 min · last fix heading to Southend Victoria +11 min
- Sat 26 Sept Max en route +13 min · last fix heading to Southend Victoria +10 min
- Fri 11 Sept Max en route +15 min · last fix heading to Southend Victoria +9 min
Distribution · 90 days
68 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 6% · 4
- On time 41% · 28
- 3–10 min 47% · 32
- 10–30 min 6% · 4
- 30+ min 0% · 0
On-time by weekday
- 60% M n=10
- 45% T n=11
- 33% W n=12
- 42% T n=12
- 83% F n=12
- 18% S n=11
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 7 Nov | Southend Victoria 23:57 | +8 min | +10 min |
| Fri 6 Nov | Southend Victoria 23:47 | +1 min | +6 min |
| Thu 5 Nov | Southend Victoria 23:44 | +5 min | +6 min |
| Wed 4 Nov | Southend Victoria 23:44 | +6 min | +7 min |
| Tue 3 Nov | Prittlewell 23:54 | +6 min | +11 min |
| Mon 2 Nov | Prittlewell 09:34 | +1 min | +4 min |
| Sat 31 Oct | Prittlewell 00:03 | +6 min | +7 min |
| Fri 30 Oct | Southend Victoria 23:54 | 0 min | +7 min |
| Thu 29 Oct | Prittlewell 23:57 | +3 min | +8 min |
| Wed 28 Oct | Southend Victoria 23:56 | +2 min | +7 min |
| Tue 27 Oct | Southend Victoria 23:55 | +1 min | +6 min |
| Mon 26 Oct | Prittlewell 23:53 | −1 min | +5 min |
| Sat 24 Oct | Prittlewell 00:02 | +5 min | +7 min |
| Fri 23 Oct | Southend Victoria 23:55 | +1 min | +6 min |
| Thu 22 Oct | Prittlewell 23:59 | +5 min | +11 min |
| Wed 21 Oct | Southend Airport 02:04 | +13 min | +14 min |
| Tue 20 Oct | Prittlewell 23:58 | +3 min | +9 min |
| Mon 19 Oct | Shenfield 23:15 | −2 min | +4 min |
| Sat 17 Oct | Southend Victoria 00:02 | +4 min | +6 min |
| Fri 16 Oct | Southend Victoria 23:55 | +1 min | +6 min |
| Thu 15 Oct | Prittlewell 23:54 | 0 min | +7 min |
| Wed 14 Oct | Southend Victoria 02:10 | +7 min | +17 min |
| Tue 13 Oct | Prittlewell 23:58 | +3 min | +9 min |
| Mon 12 Oct | Prittlewell 09:44 | +2 min | +5 min |
| Sat 10 Oct | Prittlewell 00:02 | +5 min | +8 min |
| Fri 9 Oct | Prittlewell 00:02 | +8 min | +13 min |
| Thu 8 Oct | Prittlewell 23:58 | +4 min | +9 min |
| Wed 7 Oct | Southend Victoria 23:56 | +2 min | +7 min |
| Tue 6 Oct | Prittlewell 23:53 | −1 min | +5 min |
| Mon 5 Oct | Southend Victoria 09:44 | +2 min | +5 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.