Chiltern Railways 631T48
View line Chiltern Railways
Alerts for train 631T48
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
81%
17/21 runs under 3 min
RT coverage: 21 full · 0 partial · 0 no data
On-time · 90 days
73%
46/63 runs under 3 min
RT coverage: 63 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+8min
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 13 Aug Max en route +37 min · last fix heading to 74425 +36 min
- Fri 23 Oct Max en route +32 min · last fix heading to Oxford Parkway +32 min
- Mon 21 Sept Max en route +27 min · last fix heading to 74425 +27 min
- Mon 26 Oct Max en route +23 min · last fix heading to Oxford Parkway +23 min
- Wed 14 Oct Max en route +13 min · last fix heading to Oxford Parkway +11 min
Distribution · 90 days
63 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 17% · 11
- On time 56% · 35
- 3–10 min 17% · 11
- 10–30 min 6% · 4
- 30+ min 3% · 2
On-time by weekday
- 69% M n=13
- 77% T n=13
- 85% W n=13
- 75% T n=12
- 58% F n=12
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 4 Nov | Oxford Parkway 17:54 | +1 min | +2 min |
| Tue 3 Nov | Oxford Parkway 17:54 | −1 min | +1 min |
| Mon 2 Nov | Oxford Parkway 18:04 | +6 min | +6 min |
| Fri 30 Oct | Oxford Parkway 18:04 | −1 min | +2 min |
| Thu 29 Oct | Oxford Parkway 18:04 | −1 min | +2 min |
| Wed 28 Oct | Oxford Parkway 18:06 | 0 min | +3 min |
| Tue 27 Oct | Oxford Parkway 18:05 | 0 min | +3 min |
| Mon 26 Oct | Oxford Parkway 18:18 | +23 min | +23 min |
| Fri 23 Oct | Oxford Parkway 18:28 | +32 min | +32 min |
| Thu 22 Oct | Oxford Parkway 18:03 | −2 min | +1 min |
| Wed 21 Oct | Oxford Parkway 18:04 | −1 min | +1 min |
| Tue 20 Oct | Oxford Parkway 18:03 | −2 min | — |
| Mon 19 Oct | Oxford Parkway 18:07 | +2 min | +7 min |
| Fri 16 Oct | Oxford Parkway 18:07 | +2 min | +2 min |
| Thu 15 Oct | Oxford Parkway 18:05 | 0 min | +2 min |
| Wed 14 Oct | Oxford Parkway 18:16 | +11 min | +13 min |
| Tue 13 Oct | Oxford Parkway 18:03 | −2 min | +1 min |
| Mon 12 Oct | Oxford Parkway 18:06 | +1 min | +2 min |
| Fri 9 Oct | Oxford Parkway 18:05 | 0 min | +2 min |
| Thu 8 Oct | Oxford Parkway 18:03 | −2 min | +1 min |
| Wed 7 Oct | Oxford Parkway 18:03 | −2 min | +1 min |
| Tue 6 Oct | Oxford Parkway 18:13 | +8 min | +10 min |
| Mon 5 Oct | Oxford Parkway 18:03 | −2 min | — |
| Fri 2 Oct | 74425 18:11 | +6 min | +10 min |
| Thu 1 Oct | 74425 18:04 | −1 min | +2 min |
| Wed 30 Sept | 74425 18:03 | −2 min | — |
| Tue 29 Sept | 74425 18:07 | +2 min | +7 min |
| Mon 28 Sept | 74425 18:07 | +2 min | +6 min |
| Fri 25 Sept | 74425 18:03 | −2 min | +1 min |
| Thu 24 Sept | 74425 18:13 | +8 min | +11 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.