Greater Anglia 521F20
View line Greater Anglia
Alerts for train 521F20
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
58%
15/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
59%
44/75 runs under 3 min
RT coverage: 75 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +1 min
P90
+9min
9 in 10 runs arrive with less than this
30 days: +11 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 8 Oct Max en route +27 min · last fix heading to Thorpe Bay +23 min
- Wed 7 Oct Max en route +20 min · last fix heading to Colchester +18 min
- Sat 10 Oct Max en route +18 min · last fix heading to Colchester +14 min
- Mon 7 Sept Max en route +15 min · last fix heading to 50499 +13 min
- Tue 8 Sept Max en route +12 min · last fix heading to 50499 +10 min
Distribution · 90 days
75 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 1% · 1
- On time 57% · 43
- 3–10 min 35% · 26
- 10–30 min 7% · 5
- 30+ min 0% · 0
On-time by weekday
- 50% M n=12
- 54% T n=13
- 54% W n=13
- 58% T n=12
- 62% F n=13
- 75% S n=12
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 28 Oct | Colchester 12:55 | −1 min | +1 min |
| Tue 27 Oct | Colchester 12:56 | +1 min | +5 min |
| Mon 26 Oct | Colchester 12:54 | −1 min | +2 min |
| Sat 24 Oct | Colchester 12:55 | −1 min | +3 min |
| Fri 23 Oct | Southend East 23:11 | +8 min | +9 min |
| Thu 22 Oct | Colchester 12:55 | −1 min | +2 min |
| Wed 21 Oct | Colchester 12:54 | −1 min | +2 min |
| Tue 20 Oct | Colchester 12:55 | 0 min | +2 min |
| Mon 19 Oct | Colchester 12:55 | 0 min | +2 min |
| Sat 17 Oct | Colchester 12:54 | −1 min | +3 min |
| Fri 16 Oct | Southend East 23:03 | 0 min | +2 min |
| Thu 15 Oct | Thorpe Bay 23:09 | +6 min | +7 min |
| Wed 14 Oct | Thorpe Bay 23:03 | 0 min | +2 min |
| Tue 13 Oct | Southend East 23:09 | +6 min | +6 min |
| Mon 12 Oct | Thorpe Bay 23:06 | +3 min | +4 min |
| Sat 10 Oct | Colchester 13:09 | +14 min | +18 min |
| Fri 9 Oct | Thorpe Bay 23:05 | +1 min | +3 min |
| Thu 8 Oct | Thorpe Bay 00:50 | +23 min | +27 min |
| Wed 7 Oct | Colchester 13:03 | +18 min | +20 min |
| Tue 6 Oct | Southend East 23:05 | +2 min | +4 min |
| Mon 5 Oct | Colchester 12:36 | +3 min | +4 min |
| Sat 3 Oct | 50036 12:54 | 0 min | +1 min |
| Fri 2 Oct | 50499 23:03 | 0 min | +2 min |
| Thu 1 Oct | 50499 23:07 | +3 min | +4 min |
| Wed 30 Sept | 50499 23:06 | +3 min | +3 min |
| Tue 29 Sept | 50499 23:06 | +3 min | +3 min |
| Mon 28 Sept | 50499 23:09 | +6 min | +6 min |
| Sat 26 Sept | 50036 12:55 | 0 min | +1 min |
| Fri 25 Sept | 50499 23:12 | +9 min | +11 min |
| Thu 24 Sept | 50499 23:05 | +2 min | +4 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.