GWR 811A10
View line GWR
Alerts for train 811A10
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
20%
1/5 runs under 3 min
RT coverage: 5 full · 0 partial · 0 no data
On-time · 90 days
25%
3/12 runs under 3 min
RT coverage: 12 full · 0 partial · 0 no data
Typical delay
+8min
Median at arrival, 90 days
30 days: +10 min
P90
+16min
9 in 10 runs arrive with less than this
30 days: +14 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
- Sun 30 Aug Max en route +26 min · last fix heading to 73251 +25 min
- Sun 9 Aug Max en route +17 min · last fix heading to 73251 +16 min
- Sun 18 Oct Max en route +15 min · last fix heading to Slough +15 min
- Sun 23 Aug Max en route +14 min · last fix heading to 73251 +14 min
- Sun 4 Oct Max en route +15 min · last fix heading to 73251 +13 min
Distribution · 90 days
12 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 25% · 3
- 3–10 min 25% · 3
- 10–30 min 50% · 6
- 30+ min 0% · 0
On-time by weekday
- — M n=0
- — T n=0
- — W n=0
- — T n=0
- — F n=0
- — S n=0
- 25% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 1 Nov | Maidenhead 10:50 | +3 min | +5 min |
| Sun 25 Oct | Maidenhead 10:58 | +10 min | +10 min |
| Sun 18 Oct | Slough 11:03 | +15 min | +15 min |
| Sun 11 Oct | Maidenhead 10:44 | −1 min | +4 min |
| Sun 4 Oct | 73251 10:57 | +13 min | +15 min |
| Sun 27 Sept | 73251 10:50 | +1 min | +4 min |
| Sun 20 Sept | 73251 11:02 | +5 min | +13 min |
| Sun 6 Sept | 73251 11:03 | +6 min | +12 min |
| Sun 30 Aug | 73251 11:09 | +25 min | +26 min |
| Sun 23 Aug | 73251 10:58 | +14 min | +14 min |
| Sun 16 Aug | 73251 10:45 | +1 min | +2 min |
| Sun 9 Aug | 73251 11:00 | +16 min | +17 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.