GWR 771L27
View line GWR
Alerts for train 771L27
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
32%
6/19 runs under 3 min
RT coverage: 19 full · 0 partial · 0 no data
On-time · 90 days
18%
8/44 runs under 3 min
RT coverage: 44 full · 0 partial · 0 no data
Typical delay
+7min
Median at arrival, 90 days
30 days: +5 min
P90
+19min
9 in 10 runs arrive with less than this
30 days: +15 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 25 Sept Max en route +30 min · last fix heading to 73251 +30 min
- Tue 15 Sept Max en route +29 min · last fix heading to 73251 +29 min
- Mon 17 Aug Max en route +24 min · last fix heading to 73251 +24 min
- Fri 21 Aug Max en route +20 min · last fix heading to 73251 +20 min
- Tue 6 Oct Max en route +19 min · last fix heading to Slough +19 min
Distribution · 90 days
44 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 18% · 8
- 3–10 min 41% · 18
- 10–30 min 39% · 17
- 30+ min 2% · 1
On-time by weekday
- 22% M n=9
- 33% T n=9
- 25% W n=8
- 11% T n=9
- 0% F n=9
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 16 Oct | Slough 19:02 | +13 min | +13 min |
| Thu 15 Oct | Slough 18:52 | +3 min | +3 min |
| Wed 14 Oct | Slough 19:03 | +14 min | +14 min |
| Tue 13 Oct | Maidenhead 18:50 | 0 min | +1 min |
| Mon 12 Oct | Maidenhead 18:51 | +2 min | +3 min |
| Fri 9 Oct | Slough 18:54 | +5 min | +5 min |
| Thu 8 Oct | Maidenhead 18:54 | +5 min | +5 min |
| Wed 7 Oct | Maidenhead 18:52 | +3 min | +3 min |
| Tue 6 Oct | Slough 19:08 | +19 min | +19 min |
| Mon 5 Oct | Maidenhead 18:38 | −1 min | +1 min |
| Fri 2 Oct | 73251 18:52 | +3 min | +3 min |
| Thu 1 Oct | 73251 18:51 | +2 min | +3 min |
| Wed 30 Sept | 73251 18:54 | +1 min | +3 min |
| Tue 29 Sept | 73251 18:58 | +9 min | +9 min |
| Mon 28 Sept | 73251 18:59 | +10 min | +10 min |
| Fri 25 Sept | 73251 19:19 | +30 min | +30 min |
| Thu 24 Sept | 73251 19:02 | +13 min | +13 min |
| Tue 22 Sept | 74331 17:57 | 0 min | — |
| Mon 21 Sept | 73251 18:58 | +9 min | +9 min |
| Fri 18 Sept | 73251 19:02 | +14 min | +14 min |
| Thu 17 Sept | 73251 18:53 | +4 min | +4 min |
| Wed 16 Sept | 73251 18:50 | 0 min | +3 min |
| Tue 15 Sept | 73251 19:18 | +29 min | +29 min |
| Fri 11 Sept | 73251 18:54 | +5 min | +5 min |
| Thu 10 Sept | 73251 18:59 | +10 min | +10 min |
| Wed 9 Sept | 73251 18:55 | +6 min | +7 min |
| Tue 8 Sept | 73251 18:52 | +3 min | +6 min |
| Mon 7 Sept | 73251 18:58 | +8 min | +8 min |
| Fri 4 Sept | 73251 18:59 | +10 min | +10 min |
| Thu 3 Sept | 73251 18:53 | +4 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.