LIRR 831
View line LIRR
Alerts for train 831
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line LIRR.
It does not run today
Last recorded run: Friday 2 October −2 min
The mini-map returns when the train runs
On-time · 30 days
82%
14/17 runs under 3 min
RT coverage: 17 full · 0 partial · 0 no data
On-time · 90 days
87%
48/55 runs under 3 min
RT coverage: 55 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+4min
9 in 10 runs arrive with less than this
30 days: +4 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
- Tue 14 Jul Max en route +11 min · last fix heading to 237 +11 min
- Tue 11 Aug Max en route +8 min · last fix heading to 237 +6 min
- Wed 2 Sept Max en route +8 min · last fix heading to 237 +6 min
- Thu 3 Sept Max en route +6 min · last fix heading to 237 +5 min
- Fri 25 Sept Max en route +5 min · last fix heading to 237 +4 min
Distribution · 90 days
55 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 27% · 15
- On time 60% · 33
- 3–10 min 11% · 6
- 10–30 min 2% · 1
- 30+ min 0% · 0
On-time by weekday
- 100% M n=9
- 82% T n=11
- 75% W n=12
- 92% T n=12
- 91% F n=11
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 2 Oct | 237 10:09 | −2 min | +2 min |
| Thu 1 Oct | 237 10:08 | 0 min | +2 min |
| Wed 30 Sept | 237 10:09 | −1 min | +2 min |
| Tue 29 Sept | 237 10:10 | −1 min | +2 min |
| Mon 28 Sept | 237 10:08 | −2 min | +3 min |
| Fri 25 Sept | 237 10:09 | +4 min | +5 min |
| Thu 24 Sept | 237 10:08 | 0 min | +3 min |
| Wed 23 Sept | 237 10:09 | −1 min | +2 min |
| Tue 22 Sept | 237 10:09 | 0 min | +2 min |
| Mon 21 Sept | NEC-1851-03 11:38 | 0 min | +6 min |
| Fri 18 Sept | 237 10:08 | +3 min | +6 min |
| Thu 17 Sept | 237 10:08 | 0 min | +2 min |
| Wed 16 Sept | 237 10:08 | +4 min | +5 min |
| Fri 11 Sept | 237 10:09 | 0 min | +2 min |
| Thu 10 Sept | 237 10:09 | −1 min | +3 min |
| Wed 9 Sept | 237 10:09 | +3 min | +5 min |
| Tue 8 Sept | 237 10:11 | +1 min | +4 min |
| Fri 4 Sept | 237 10:09 | −1 min | +2 min |
| Thu 3 Sept | 237 10:11 | +5 min | +6 min |
| Wed 2 Sept | 237 10:09 | +6 min | +8 min |
| Tue 1 Sept | 237 10:09 | +2 min | +4 min |
| Mon 31 Aug | 237 10:09 | 0 min | +2 min |
| Fri 28 Aug | 237 10:10 | 0 min | +1 min |
| Thu 27 Aug | 237 10:10 | −2 min | +2 min |
| Wed 26 Aug | 237 10:10 | +1 min | +2 min |
| Tue 25 Aug | 237 10:10 | −1 min | +2 min |
| Mon 24 Aug | 237 10:09 | +2 min | +4 min |
| Fri 21 Aug | 237 10:09 | −1 min | +1 min |
| Thu 20 Aug | NEC-2276-01 10:38 | 0 min | +2 min |
| Wed 19 Aug | 237 10:09 | −1 min | +2 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 10 July 2026.