GWR 671P20
View line GWR
Alerts for train 671P20
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line GWR.
The mini-map returns when the train runs
On-time · 30 days
24%
6/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
31%
23/75 runs under 3 min
RT coverage: 75 full · 0 partial · 0 no data
Typical delay
+6min
Median at arrival, 90 days
30 days: +6 min
P90
+19min
9 in 10 runs arrive with less than this
30 days: +23 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
- Wed 9 Sept Max en route +32 min · last fix heading to 73251 +32 min
- Mon 7 Sept Max en route +32 min · last fix heading to 73251 +32 min
- Sat 24 Oct Max en route +30 min · last fix heading to Maidenhead +30 min
- Thu 13 Aug Max en route +30 min · last fix heading to 73251 +30 min
- Thu 15 Oct Max en route +28 min · last fix heading to Slough +25 min
Distribution · 90 days
75 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 31% · 23
- 3–10 min 33% · 25
- 10–30 min 31% · 23
- 30+ min 5% · 4
On-time by weekday
- 18% M n=11
- 31% T n=13
- 38% W n=13
- 42% T n=12
- 38% F n=13
- 15% S n=13
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 24 Oct | Maidenhead 13:01 | +30 min | +30 min |
| Fri 23 Oct | Maidenhead 12:35 | +4 min | +6 min |
| Thu 22 Oct | Slough 12:37 | +4 min | +7 min |
| Wed 21 Oct | Slough 12:34 | +1 min | +3 min |
| Tue 20 Oct | Slough 12:43 | +10 min | +12 min |
| Mon 19 Oct | Slough 12:37 | +6 min | +6 min |
| Sat 17 Oct | Maidenhead 12:45 | +14 min | +14 min |
| Fri 16 Oct | Slough 12:43 | +10 min | +14 min |
| Thu 15 Oct | Slough 12:58 | +25 min | +28 min |
| Wed 14 Oct | Slough 12:43 | +10 min | +12 min |
| Tue 13 Oct | Maidenhead 12:36 | +3 min | +4 min |
| Mon 12 Oct | Slough 12:58 | +25 min | +25 min |
| Sat 10 Oct | Maidenhead 12:33 | +2 min | +3 min |
| Fri 9 Oct | Slough 16:45 | 0 min | +3 min |
| Thu 8 Oct | Slough 13:20 | +1 min | +4 min |
| Wed 7 Oct | Slough 12:42 | +11 min | +12 min |
| Tue 6 Oct | Slough 12:33 | +2 min | +2 min |
| Mon 5 Oct | Maidenhead 12:36 | +6 min | +6 min |
| Sat 3 Oct | 73251 13:05 | +1 min | +2 min |
| Fri 2 Oct | 73251 12:38 | +7 min | +9 min |
| Thu 1 Oct | 73251 12:38 | +7 min | +9 min |
| Wed 30 Sept | 73251 12:39 | +7 min | +7 min |
| Tue 29 Sept | 73251 12:47 | +3 min | +4 min |
| Mon 28 Sept | 73251 12:51 | +20 min | +20 min |
| Sat 26 Sept | 73251 12:38 | +6 min | +7 min |
| Fri 25 Sept | 73251 12:37 | +7 min | +8 min |
| Thu 24 Sept | 73251 12:31 | 0 min | +2 min |
| Wed 23 Sept | 74444 11:40 | +1 min | +4 min |
| Tue 22 Sept | 73251 12:35 | +4 min | +5 min |
| Mon 21 Sept | 73251 12:37 | +3 min | +8 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.