London Underground 512I21
View line London Underground
Alerts for train 512I21
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 Underground.
It does not run today
Last recorded run: Thursday 29 October +1 min
The mini-map returns when the train runs
On-time ยท 30 days
100%
14/14 runs under 3 min
RT coverage: 14 full ยท 0 partial ยท 0 no data
On-time ยท 90 days
93%
43/46 runs under 3 min
RT coverage: 46 full ยท 0 partial ยท 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: +2 min
Last 30 days
Delay at the end of each run, in minutes. One bar per run.
- On time (<3 min)
- 3โ10 min
- 10โ30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Wed 19 Aug Max en route +8 min ยท last fix heading to 87130 +8 min
- Tue 8 Sept Max en route +5 min ยท last fix heading to 87130 +5 min
- Mon 7 Sept Max en route +5 min ยท last fix heading to 87130 +5 min
Distribution ยท 90 days
46 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 2% ยท 1
- On time 91% ยท 42
- 3โ10 min 7% ยท 3
- 10โ30 min 0% ยท 0
- 30+ min 0% ยท 0
On-time by weekday
- 86% M n=7
- 90% T n=10
- 90% W n=10
- 100% T n=10
- 100% F n=9
- โ S n=0
- โ S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 29 Oct | Gunnersbury 07:06 | +1 min | +1 min |
| Wed 28 Oct | โ 07:05 | 0 min | โ |
| Fri 23 Oct | Kew Gardens 07:06 | +1 min | +1 min |
| Thu 22 Oct | โ 07:06 | +1 min | +1 min |
| Wed 21 Oct | Gunnersbury 07:07 | +2 min | +4 min |
| Tue 20 Oct | โ 07:05 | 0 min | โ |
| Thu 15 Oct | Kew Gardens 07:05 | 0 min | โ |
| Wed 14 Oct | Gunnersbury 07:06 | +1 min | +1 min |
| Tue 13 Oct | Kew Gardens 07:05 | 0 min | โ |
| Mon 12 Oct | Gunnersbury 07:07 | +2 min | +4 min |
| Fri 9 Oct | Kew Gardens 07:05 | 0 min | โ |
| Thu 8 Oct | โ 12:59 | 0 min | โ |
| Tue 6 Oct | Kew Gardens 07:05 | 0 min | โ |
| Mon 5 Oct | Kew Gardens 14:33 | โ4 min | โ |
| Fri 2 Oct | 87130 07:06 | 0 min | +1 min |
| Tue 29 Sept | 87130 12:38 | 0 min | โ |
| Mon 28 Sept | 87130 07:05 | 0 min | โ |
| Fri 25 Sept | 87130 07:05 | 0 min | โ |
| Thu 24 Sept | 87130 07:06 | +1 min | +1 min |
| Wed 23 Sept | 87132 06:46 | +2 min | +3 min |
| Tue 22 Sept | 87130 07:06 | +1 min | +1 min |
| Mon 21 Sept | 87130 07:05 | 0 min | โ |
| Thu 17 Sept | 87130 13:06 | 0 min | +11 min |
| Fri 11 Sept | 87130 07:05 | 0 min | +1 min |
| Thu 10 Sept | 87130 07:06 | +1 min | +1 min |
| Wed 9 Sept | 87130 07:06 | +1 min | +1 min |
| Tue 8 Sept | 87130 07:10 | +5 min | +5 min |
| Mon 7 Sept | 87130 07:10 | +5 min | +5 min |
| Fri 4 Sept | 87130 07:06 | +1 min | +1 min |
| Thu 3 Sept | 87130 07:06 | +1 min | +1 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.