GWR 771L17
View line GWR
Alerts for train 771L17
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
49%
22/45 runs under 3 min
RT coverage: 45 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +9 min
P90
+15min
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 16 Oct Max en route +41 min · last fix heading to Maidenhead +41 min
- Fri 14 Aug Max en route +28 min · last fix heading to 73251 +28 min
- Thu 13 Aug Max en route +22 min · last fix heading to 73251 +22 min
- Mon 10 Aug Max en route +24 min · last fix heading to 73251 +21 min
- Fri 2 Oct Max en route +16 min · last fix heading to 73251 +15 min
Distribution · 90 days
45 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 4% · 2
- On time 44% · 20
- 3–10 min 20% · 9
- 10–30 min 29% · 13
- 30+ min 2% · 1
On-time by weekday
- 38% M n=8
- 50% T n=10
- 63% W n=8
- 70% T n=10
- 22% F n=9
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 16 Oct | Maidenhead 14:34 | +41 min | +41 min |
| Thu 15 Oct | Slough 13:57 | +4 min | +4 min |
| Wed 14 Oct | Maidenhead 13:52 | −1 min | +3 min |
| Tue 13 Oct | Slough 14:02 | +9 min | +9 min |
| Mon 12 Oct | Slough 13:57 | +3 min | +3 min |
| Fri 9 Oct | Slough 14:04 | +11 min | +11 min |
| Thu 8 Oct | Slough 14:04 | +11 min | +14 min |
| Wed 7 Oct | Slough 14:05 | +12 min | +12 min |
| Tue 6 Oct | Maidenhead 14:05 | +12 min | +16 min |
| Mon 5 Oct | Maidenhead 14:03 | +10 min | +10 min |
| Fri 2 Oct | 73251 14:08 | +15 min | +16 min |
| Thu 1 Oct | 73251 13:53 | 0 min | +2 min |
| Wed 30 Sept | 73251 13:59 | +5 min | +7 min |
| Tue 29 Sept | 73251 14:03 | +10 min | +11 min |
| Mon 28 Sept | 73251 13:51 | −2 min | +2 min |
| Fri 25 Sept | 73251 14:08 | +15 min | +15 min |
| Thu 24 Sept | 73251 13:52 | −1 min | +3 min |
| Tue 22 Sept | 73251 13:52 | −1 min | +1 min |
| Mon 21 Sept | 73251 13:52 | −2 min | +1 min |
| Thu 17 Sept | 73251 13:54 | +1 min | +2 min |
| Wed 16 Sept | 73251 14:00 | +7 min | +9 min |
| Tue 15 Sept | 73251 13:52 | −1 min | +1 min |
| Fri 11 Sept | 73251 13:53 | 0 min | +2 min |
| Thu 10 Sept | 73251 13:53 | 0 min | +3 min |
| Wed 9 Sept | 73251 13:55 | +1 min | +5 min |
| Tue 8 Sept | 73251 13:52 | −1 min | +2 min |
| Mon 7 Sept | 73251 14:01 | +8 min | +8 min |
| Fri 4 Sept | 73251 13:56 | +3 min | +5 min |
| Thu 3 Sept | 73251 13:53 | 0 min | +2 min |
| Wed 2 Sept | 73251 13:54 | +1 min | +3 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.