C4b 27421
View line C4b
Alerts for train 27421
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line C4b.
The mini-map returns when the train runs
On-time · 30 days
14%
1/7 runs under 3 min
RT coverage: 7 full · 0 partial · 0 no data
On-time · 90 days
42%
8/19 runs under 3 min
RT coverage: 19 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +4 min
P90
+9min
9 in 10 runs arrive with less than this
30 days: +9 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 9 Aug Max en route +24 min · last fix heading to Parla +22 min
- Mon 12 Oct Max en route +11 min · last fix heading to Parla +9 min
- Sun 20 Sept Max en route +17 min · last fix heading to Colmenar Viejo +9 min
- Sat 15 Aug Max en route +16 min · last fix heading to Colmenar Viejo +8 min
- Sun 27 Sept Max en route +13 min · last fix heading to Colmenar Viejo +5 min
Distribution · 90 days
19 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 42% · 8
- 3–10 min 53% · 10
- 10–30 min 5% · 1
- 30+ min 0% · 0
On-time by weekday
- 0% M n=1
- — T n=0
- — W n=0
- — T n=0
- — F n=0
- 38% S n=8
- 50% S n=10
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 12 Oct | Parla 09:12 | +9 min | +11 min |
| Sun 11 Oct | Colmenar Viejo 08:43 | +3 min | +7 min |
| Sat 10 Oct | Colmenar Viejo 08:43 | +4 min | +7 min |
| Sun 4 Oct | Colmenar Viejo 08:41 | 0 min | +10 min |
| Sun 27 Sept | Colmenar Viejo 08:47 | +5 min | +13 min |
| Sun 20 Sept | Colmenar Viejo 08:50 | +9 min | +17 min |
| Sat 19 Sept | Colmenar Viejo 08:45 | +3 min | +11 min |
| Sun 13 Sept | Colmenar Viejo 08:40 | 0 min | +8 min |
| Sat 12 Sept | Colmenar Viejo 08:44 | +3 min | +10 min |
| Sun 23 Aug | Colmenar Viejo 08:45 | +4 min | +12 min |
| Sat 22 Aug | Colmenar Viejo 08:46 | +4 min | +13 min |
| Sun 16 Aug | Colmenar Viejo 08:39 | 0 min | +9 min |
| Sat 15 Aug | Colmenar Viejo 08:49 | +8 min | +16 min |
| Sun 9 Aug | Parla 09:12 | +22 min | +24 min |
| Sat 8 Aug | Colmenar Viejo 08:44 | +2 min | +9 min |
| Sun 2 Aug | Colmenar Viejo 08:42 | +1 min | +9 min |
| Sat 1 Aug | Colmenar Viejo 08:43 | +2 min | +9 min |
| Sun 26 Jul | Colmenar Viejo 08:39 | 0 min | +10 min |
| Sat 25 Jul | Colmenar Viejo 08:42 | +1 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.