Greater Anglia 521B66
View line Greater Anglia
Alerts for train 521B66
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.
✓ Today’s run finished
Today, last fix heading to Stansted Mountfitchet at 13:44 −1 min
The mini-map returns when the train runs
On-time · 30 days
90%
27/30 runs under 3 min
RT coverage: 30 full · 0 partial · 0 no data
On-time · 90 days
79%
71/90 runs under 3 min
RT coverage: 90 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: −1 min
P90
+5min
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 24 Jul Max en route +64 min · last fix heading to 50499 +64 min
- Wed 12 Aug Max en route +18 min · last fix heading to 47346 +18 min
- Wed 9 Sept Max en route +13 min · last fix heading to 47346 +11 min
- Fri 17 Jul Max en route +10 min · last fix heading to Southend East +10 min
- Thu 1 Oct Max en route +16 min · last fix heading to 50499 +9 min
Distribution · 90 days
90 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 9% · 8
- On time 70% · 63
- 3–10 min 17% · 15
- 10–30 min 3% · 3
- 30+ min 1% · 1
On-time by weekday
- 85% M n=13
- 69% T n=13
- 75% W n=12
- 62% T n=13
- 77% F n=13
- 92% S n=13
- 92% S n=13
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 13 Oct | Stansted Mountfitchet 13:44 | −1 min | +2 min |
| Mon 12 Oct | Southend East 17:36 | −2 min | +2 min |
| Sun 11 Oct | Stansted Mountfitchet 13:51 | −2 min | +1 min |
| Sat 10 Oct | Stansted Mountfitchet 13:44 | −1 min | — |
| Fri 9 Oct | Thorpe Bay 17:38 | +2 min | +5 min |
| Thu 8 Oct | Southend East 17:39 | +3 min | +5 min |
| Wed 7 Oct | Thorpe Bay 17:36 | −1 min | — |
| Tue 6 Oct | Southend East 17:35 | −2 min | +1 min |
| Mon 5 Oct | Thorpe Bay 17:36 | 0 min | +2 min |
| Sun 4 Oct | 47346 13:51 | −1 min | +2 min |
| Sat 3 Oct | 47346 13:45 | 0 min | +1 min |
| Fri 2 Oct | 50499 17:35 | −2 min | +1 min |
| Thu 1 Oct | 50499 17:46 | +9 min | +16 min |
| Wed 30 Sept | 50499 17:34 | −3 min | +2 min |
| Tue 29 Sept | 50499 17:36 | −1 min | +2 min |
| Mon 28 Sept | 50499 17:36 | −1 min | +1 min |
| Sun 27 Sept | 47346 13:44 | −1 min | +1 min |
| Sat 26 Sept | 47346 13:45 | −1 min | +1 min |
| Fri 25 Sept | 50499 17:35 | −2 min | +1 min |
| Thu 24 Sept | 50499 17:40 | +3 min | +3 min |
| Wed 23 Sept | 50499 17:37 | 0 min | +4 min |
| Tue 22 Sept | 50499 17:37 | 0 min | +4 min |
| Mon 21 Sept | 50499 17:40 | +2 min | +4 min |
| Sun 20 Sept | Leigh-on-Sea 00:12 | 0 min | +2 min |
| Sat 19 Sept | 47346 13:48 | +2 min | +5 min |
| Fri 18 Sept | 50499 17:36 | −1 min | +3 min |
| Thu 17 Sept | 50499 17:38 | +1 min | +5 min |
| Wed 16 Sept | 50499 17:36 | −1 min | +1 min |
| Tue 15 Sept | 50499 17:36 | −1 min | +2 min |
| Mon 14 Sept | 50499 17:37 | 0 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.