GWR 791L09
View line GWR
Alerts for train 791L09
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
21%
5/24 runs under 3 min
RT coverage: 24 full · 0 partial · 0 no data
On-time · 90 days
25%
18/72 runs under 3 min
RT coverage: 72 full · 0 partial · 0 no data
Typical delay
+8min
Median at arrival, 90 days
30 days: +8 min
P90
+21min
9 in 10 runs arrive with less than this
30 days: +27 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
- Sat 3 Oct Max en route +49 min · last fix heading to 74233 +49 min
- Sat 22 Aug Max en route +45 min · last fix heading to 73251 +45 min
- Wed 14 Oct Max en route +37 min · last fix heading to Slough +37 min
- Fri 16 Oct Max en route +30 min · last fix heading to Maidenhead +30 min
- Thu 22 Oct Max en route +29 min · last fix heading to Slough +29 min
Distribution · 90 days
72 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 1% · 1
- On time 24% · 17
- 3–10 min 39% · 28
- 10–30 min 31% · 22
- 30+ min 6% · 4
On-time by weekday
- 23% M n=13
- 23% T n=13
- 25% W n=12
- 17% T n=12
- 23% F n=13
- 44% S n=9
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 4 Nov | Slough 09:53 | +8 min | +9 min |
| Tue 3 Nov | Slough 09:59 | +15 min | +21 min |
| Mon 2 Nov | Slough 09:54 | +12 min | +12 min |
| Fri 30 Oct | Maidenhead 09:58 | +6 min | +7 min |
| Thu 29 Oct | Slough 10:11 | +19 min | +19 min |
| Wed 28 Oct | Slough 09:55 | +2 min | +2 min |
| Tue 27 Oct | Maidenhead 10:13 | +21 min | +23 min |
| Mon 26 Oct | Slough 10:04 | +11 min | +13 min |
| Sat 24 Oct | Slough 09:59 | +7 min | +7 min |
| Fri 23 Oct | Maidenhead 09:52 | 0 min | +3 min |
| Thu 22 Oct | Slough 10:22 | +29 min | +29 min |
| Wed 21 Oct | Slough 09:52 | 0 min | +9 min |
| Tue 20 Oct | Pontyclun 08:03 | +8 min | +8 min |
| Mon 19 Oct | Maidenhead 09:56 | +4 min | +4 min |
| Fri 16 Oct | Maidenhead 10:22 | +30 min | +30 min |
| Thu 15 Oct | Slough 10:06 | +13 min | +13 min |
| Wed 14 Oct | Slough 10:29 | +37 min | +37 min |
| Tue 13 Oct | Slough 10:00 | +8 min | +8 min |
| Mon 12 Oct | Maidenhead 09:52 | 0 min | +3 min |
| Sat 10 Oct | Maidenhead 09:58 | +1 min | +1 min |
| Fri 9 Oct | Slough 09:56 | +4 min | +4 min |
| Thu 8 Oct | Slough 09:57 | +5 min | +5 min |
| Wed 7 Oct | Maidenhead 10:04 | +11 min | +11 min |
| Tue 6 Oct | Maidenhead 10:01 | +9 min | +9 min |
| Mon 5 Oct | 73251 09:53 | +1 min | +7 min |
| Sat 3 Oct | 74233 10:16 | +49 min | +49 min |
| Fri 2 Oct | 73251 09:53 | +1 min | +3 min |
| Thu 1 Oct | 73251 09:53 | +1 min | +6 min |
| Wed 30 Sept | 73251 10:07 | +15 min | +15 min |
| Tue 29 Sept | 73251 09:53 | +1 min | +5 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.