London Overground 512J20
View line London Overground
Alerts for train 512J20
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line London Overground.
The mini-map returns when the train runs
On-time · 30 days
86%
25/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
91%
78/86 runs under 3 min
RT coverage: 86 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+2min
9 in 10 runs arrive with less than this
30 days: +5 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 3 Aug Max en route +10 min · last fix heading to 63640 +8 min
- Thu 15 Oct Max en route +7 min · last fix heading to Upper Holloway +7 min
- Sun 11 Oct Max en route +7 min · last fix heading to Harringay Green Lanes +7 min
- Fri 2 Oct Max en route +8 min · last fix heading to 63640 +7 min
- Fri 9 Oct Max en route +8 min · last fix heading to Harringay Green Lanes +5 min
Distribution · 90 days
86 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 91% · 78
- 3–10 min 9% · 8
- 10–30 min 0% · 0
- 30+ min 0% · 0
On-time by weekday
- 92% M n=13
- 100% T n=13
- 100% W n=13
- 92% T n=13
- 75% F n=12
- 83% S n=12
- 90% S n=10
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 15 Oct | Upper Holloway 21:27 | +7 min | +7 min |
| Wed 14 Oct | Upper Holloway 21:20 | −1 min | +2 min |
| Tue 13 Oct | Upper Holloway 21:20 | −1 min | +3 min |
| Mon 12 Oct | Upper Holloway 21:20 | −1 min | +2 min |
| Sun 11 Oct | Harringay Green Lanes 12:12 | +7 min | +7 min |
| Sat 10 Oct | Upper Holloway 21:50 | 0 min | — |
| Fri 9 Oct | Harringay Green Lanes 21:25 | +5 min | +8 min |
| Thu 8 Oct | Harringay Green Lanes 21:22 | +1 min | +3 min |
| Wed 7 Oct | Upper Holloway 21:20 | 0 min | +4 min |
| Tue 6 Oct | Upper Holloway 21:20 | −1 min | +6 min |
| Mon 5 Oct | Upper Holloway 21:20 | 0 min | +4 min |
| Sun 4 Oct | 63640 12:05 | −1 min | +1 min |
| Sat 3 Oct | 63640 21:50 | −1 min | +2 min |
| Fri 2 Oct | 63640 21:27 | +7 min | +8 min |
| Thu 1 Oct | 63640 21:20 | 0 min | +3 min |
| Wed 30 Sept | 63640 21:20 | −1 min | +2 min |
| Tue 29 Sept | 63640 21:21 | 0 min | +3 min |
| Mon 28 Sept | 63640 21:20 | 0 min | +2 min |
| Sun 27 Sept | 63640 12:05 | 0 min | — |
| Sat 26 Sept | 63640 21:50 | −1 min | +2 min |
| Fri 25 Sept | 63640 21:23 | +2 min | +4 min |
| Thu 24 Sept | 63640 21:20 | 0 min | +3 min |
| Wed 23 Sept | 63640 21:20 | 0 min | +4 min |
| Tue 22 Sept | 63640 21:20 | −1 min | +3 min |
| Mon 21 Sept | 63640 21:21 | 0 min | +13 min |
| Sun 20 Sept | 63640 12:04 | −1 min | +1 min |
| Sat 19 Sept | 63640 21:50 | 0 min | +1 min |
| Fri 18 Sept | 63640 21:20 | 0 min | +8 min |
| Thu 17 Sept | 63640 21:20 | 0 min | +2 min |
| Wed 16 Sept | 63640 21:22 | +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.