Chiltern Railways 631V55
View line Chiltern Railways
Alerts for train 631V55
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Chiltern Railways.
The mini-map returns when the train runs
On-time · 30 days
62%
13/21 runs under 3 min
RT coverage: 21 full · 0 partial · 0 no data
On-time · 90 days
69%
42/61 runs under 3 min
RT coverage: 61 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +1 min
P90
+7min
9 in 10 runs arrive with less than this
30 days: +7 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 16 Oct Max en route +18 min · last fix heading to Aylesbury Vale Parkway +17 min
- Mon 17 Aug Max en route +17 min · last fix heading to Aylesbury Vale Parkway +15 min
- Wed 9 Sept Max en route +14 min · last fix heading to Aylesbury Vale Parkway +11 min
- Tue 20 Oct Max en route +9 min · last fix heading to Aylesbury Vale Parkway +8 min
- Tue 29 Sept Max en route +20 min · last fix heading to Aylesbury Vale Parkway +7 min
Distribution · 90 days
61 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 11% · 7
- On time 57% · 35
- 3–10 min 26% · 16
- 10–30 min 5% · 3
- 30+ min 0% · 0
On-time by weekday
- 58% M n=12
- 62% T n=13
- 75% W n=12
- 75% T n=12
- 75% F n=12
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 20 Oct | Aylesbury Vale Parkway 19:47 | +8 min | +9 min |
| Mon 19 Oct | — 19:38 | −1 min | — |
| Fri 16 Oct | Aylesbury Vale Parkway 19:56 | +17 min | +18 min |
| Thu 15 Oct | Aylesbury Vale Parkway 19:40 | +1 min | +3 min |
| Wed 14 Oct | Aylesbury Vale Parkway 19:43 | +4 min | +5 min |
| Tue 13 Oct | Aylesbury Vale Parkway 19:42 | +3 min | +4 min |
| Mon 12 Oct | Aylesbury Vale Parkway 19:39 | −1 min | +3 min |
| Fri 9 Oct | Aylesbury Vale Parkway 19:40 | +1 min | +5 min |
| Thu 8 Oct | Aylesbury Vale Parkway 19:42 | +2 min | +4 min |
| Wed 7 Oct | Aylesbury Vale Parkway 19:38 | −1 min | +3 min |
| Tue 6 Oct | Aylesbury Vale Parkway 19:39 | −1 min | +2 min |
| Mon 5 Oct | Aylesbury Vale Parkway 19:41 | +2 min | +5 min |
| Fri 2 Oct | Aylesbury Vale Parkway 19:40 | +1 min | +4 min |
| Thu 1 Oct | Aylesbury Vale Parkway 19:39 | −1 min | +2 min |
| Wed 30 Sept | Aylesbury Vale Parkway 19:44 | +4 min | +6 min |
| Tue 29 Sept | Aylesbury Vale Parkway 20:18 | +7 min | +20 min |
| Mon 28 Sept | Aylesbury Vale Parkway 19:44 | +3 min | +6 min |
| Fri 25 Sept | Aylesbury Vale Parkway 19:39 | −1 min | +2 min |
| Thu 24 Sept | Aylesbury Vale Parkway 19:38 | −1 min | +1 min |
| Wed 23 Sept | Aylesbury Vale Parkway 19:41 | +1 min | +4 min |
| Tue 22 Sept | Aylesbury Vale Parkway 19:44 | +4 min | +6 min |
| Mon 21 Sept | Aylesbury Vale Parkway 19:41 | +1 min | +3 min |
| Fri 18 Sept | Aylesbury Vale Parkway 19:42 | +3 min | +7 min |
| Thu 17 Sept | Aylesbury Vale Parkway 19:43 | +4 min | +5 min |
| Wed 16 Sept | Aylesbury Vale Parkway 19:40 | +1 min | +4 min |
| Tue 15 Sept | Aylesbury Vale Parkway 19:39 | −1 min | +3 min |
| Mon 14 Sept | Aylesbury Vale Parkway 19:47 | +7 min | +10 min |
| Fri 11 Sept | Aylesbury Vale Parkway 19:39 | 0 min | +1 min |
| Thu 10 Sept | Aylesbury Vale Parkway 19:41 | +2 min | +4 min |
| Wed 9 Sept | Aylesbury Vale Parkway 19:51 | +11 min | +14 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.