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
36%
9/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
63%
42/67 runs under 3 min
RT coverage: 67 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +3 min
P90
+8min
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
- Mon 7 Sept Max en route +27 min · last fix heading to Southend Victoria +23 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
- Sat 1 Aug Max en route +12 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
67 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 19% · 13
- On time 43% · 29
- 3–10 min 31% · 21
- 10–30 min 6% · 4
- 30+ min 0% · 0
On-time by weekday
- 64% M n=11
- 70% T n=10
- 50% W n=12
- 67% T n=12
- 82% F n=11
- 45% S n=11
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| 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 |
| Sat 3 Oct | Southend Victoria 00:00 | +3 min | +7 min |
| Fri 2 Oct | Southend Victoria 23:56 | +2 min | +8 min |
| Thu 1 Oct | Southend Victoria 23:57 | +3 min | +9 min |
| Wed 30 Sept | Southend Victoria 00:32 | +6 min | +8 min |
| Tue 29 Sept | Southend Victoria 00:03 | +8 min | +14 min |
| Mon 28 Sept | Southend Victoria 09:47 | +5 min | +5 min |
| Sat 26 Sept | Southend Victoria 00:07 | +10 min | +13 min |
| Fri 25 Sept | Southend Victoria 23:56 | +2 min | +8 min |
| Thu 24 Sept | Southend Victoria 00:01 | +7 min | +13 min |
| Wed 23 Sept | Southend Victoria 00:23 | +7 min | +8 min |
| Tue 22 Sept | Southend Victoria 23:59 | +4 min | +6 min |
| Mon 21 Sept | Southend Victoria 09:46 | +3 min | +5 min |
| Sat 19 Sept | Southend Victoria 00:02 | +5 min | +8 min |
| Fri 18 Sept | Southend Victoria 23:55 | +2 min | +7 min |
| Thu 17 Sept | Southend Victoria 23:57 | +3 min | +8 min |
| Wed 16 Sept | Southend Victoria 00:49 | +11 min | +13 min |
| Tue 15 Sept | Southend Victoria 23:54 | 0 min | +6 min |
| Mon 14 Sept | Southend Victoria 09:43 | +1 min | +4 min |
| Sat 12 Sept | Southend Victoria 00:00 | +3 min | +8 min |
| Fri 11 Sept | Southend Victoria 00:03 | +9 min | +15 min |
| Thu 10 Sept | Southend Victoria 23:54 | 0 min | +6 min |
| Wed 9 Sept | Southend Victoria 23:54 | +1 min | +6 min |
| Tue 8 Sept | Southend Victoria 23:56 | −3 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.