GWR 791L18
View line GWR
Alerts for train 791L18
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
40%
10/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
38%
29/76 runs under 3 min
RT coverage: 76 full · 0 partial · 0 no data
Typical delay
+5min
Median at arrival, 90 days
30 days: +4 min
P90
+23min
9 in 10 runs arrive with less than this
30 days: +21 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
- Mon 14 Sept Max en route +44 min · last fix heading to 73251 +44 min
- Fri 28 Aug Max en route +39 min · last fix heading to 73251 +39 min
- Mon 24 Aug Max en route +44 min · last fix heading to 73251 +39 min
- Fri 11 Sept Max en route +31 min · last fix heading to 73251 +31 min
- Tue 20 Oct Max en route +30 min · last fix heading to Slough +30 min
Distribution · 90 days
76 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 1% · 1
- On time 37% · 28
- 3–10 min 29% · 22
- 10–30 min 26% · 20
- 30+ min 7% · 5
On-time by weekday
- 33% M n=12
- 54% T n=13
- 54% W n=13
- 33% T n=12
- 15% F n=13
- 38% S n=13
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 4 Nov | Maidenhead 14:14 | −1 min | +2 min |
| Tue 3 Nov | Slough 14:19 | +3 min | +8 min |
| Mon 2 Nov | Maidenhead 14:14 | +3 min | +4 min |
| Sat 31 Oct | Maidenhead 14:50 | −2 min | +2 min |
| Fri 30 Oct | Maidenhead 16:43 | +24 min | +28 min |
| Thu 29 Oct | Slough 14:27 | +6 min | +6 min |
| Wed 28 Oct | Maidenhead 14:21 | +1 min | +4 min |
| Tue 27 Oct | Maidenhead 14:20 | 0 min | +5 min |
| Sat 24 Oct | Slough 14:37 | +16 min | +16 min |
| Fri 23 Oct | Maidenhead 14:34 | +14 min | +15 min |
| Thu 22 Oct | Maidenhead 14:37 | +17 min | +17 min |
| Wed 21 Oct | Slough 14:37 | +17 min | +20 min |
| Tue 20 Oct | Slough 14:50 | +30 min | +30 min |
| Mon 19 Oct | Maidenhead 14:21 | +1 min | +3 min |
| Sat 17 Oct | Slough 14:24 | +4 min | +4 min |
| Fri 16 Oct | Slough 14:50 | +26 min | +31 min |
| Thu 15 Oct | Slough 14:33 | +9 min | +9 min |
| Wed 14 Oct | Maidenhead 14:24 | 0 min | +7 min |
| Tue 13 Oct | Slough 14:35 | +11 min | +12 min |
| Mon 12 Oct | Slough 14:23 | −1 min | +5 min |
| Sat 10 Oct | Slough 14:21 | +1 min | +4 min |
| Fri 9 Oct | Slough 14:34 | +14 min | +14 min |
| Thu 8 Oct | Maidenhead 14:21 | +1 min | +4 min |
| Wed 7 Oct | Slough 14:27 | +7 min | +8 min |
| Tue 6 Oct | Maidenhead 14:20 | 0 min | +2 min |
| Mon 5 Oct | Maidenhead 14:24 | +4 min | +8 min |
| Sat 3 Oct | 73251 14:26 | +6 min | +6 min |
| Fri 2 Oct | 73251 14:22 | +2 min | +4 min |
| Thu 1 Oct | 73251 14:29 | +7 min | +7 min |
| Wed 30 Sept | 76089 15:29 | +9 min | +9 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.