C4b 20427
View line C4b
Alerts for train 20427
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
11%
2/19 runs under 3 min
RT coverage: 19 full · 0 partial · 0 no data
On-time · 90 days
5%
3/56 runs under 3 min
RT coverage: 56 full · 0 partial · 0 no data
Typical delay
+13min
Median at arrival, 90 days
30 days: +10 min
P90
+29min
9 in 10 runs arrive with less than this
30 days: +26 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
- Fri 9 Oct Max en route +99 min · last fix heading to Parla +99 min
- Tue 4 Aug Max en route +54 min · last fix heading to Colmenar Viejo +45 min
- Wed 12 Aug Max en route +43 min · last fix heading to Fuencarral +43 min
- Wed 15 Jul Max en route +46 min · last fix heading to Colmenar Viejo +38 min
- Fri 24 Jul Max en route +33 min · last fix heading to Colmenar Viejo +33 min
Distribution · 90 days
56 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 5% · 3
- 3–10 min 29% · 16
- 10–30 min 55% · 31
- 30+ min 11% · 6
On-time by weekday
- 10% M n=10
- 0% T n=12
- 0% W n=10
- 0% T n=12
- 17% F n=12
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 9 Oct | Parla 08:59 | +99 min | +99 min |
| Thu 8 Oct | Tres Cantos 08:48 | +12 min | +21 min |
| Wed 7 Oct | Tres Cantos 08:44 | +7 min | +16 min |
| Tue 6 Oct | Colmenar Viejo 08:37 | +9 min | +13 min |
| Mon 5 Oct | Colmenar Viejo 08:36 | +6 min | +14 min |
| Fri 2 Oct | Colmenar Viejo 08:38 | +1 min | +12 min |
| Thu 1 Oct | Tres Cantos 08:50 | +14 min | +25 min |
| Tue 29 Sept | Colmenar Viejo 08:33 | +3 min | +11 min |
| Fri 25 Sept | Colmenar Viejo 08:30 | +1 min | +9 min |
| Thu 24 Sept | Colmenar Viejo 08:37 | +7 min | +15 min |
| Wed 23 Sept | Colmenar Viejo 08:36 | +7 min | +15 min |
| Tue 22 Sept | Parla 09:00 | +20 min | +22 min |
| Mon 21 Sept | Colmenar Viejo 08:33 | +4 min | +12 min |
| Fri 18 Sept | Tres Cantos 08:51 | +25 min | +25 min |
| Thu 17 Sept | Colmenar Viejo 08:47 | +18 min | +26 min |
| Wed 16 Sept | Parla 09:00 | +32 min | +32 min |
| Tue 15 Sept | Colmenar Viejo 08:49 | +19 min | +27 min |
| Mon 14 Sept | Colmenar Viejo 08:39 | +10 min | +18 min |
| Fri 11 Sept | Colmenar Viejo 08:45 | +16 min | +24 min |
| Thu 10 Sept | Colmenar Viejo 08:43 | +13 min | +21 min |
| Wed 9 Sept | Colmenar Viejo 08:42 | +12 min | +21 min |
| Tue 8 Sept | Parla 09:00 | +24 min | +24 min |
| Mon 7 Sept | Colmenar Viejo 08:36 | +7 min | +16 min |
| Fri 4 Sept | Colmenar Viejo 08:40 | +11 min | +19 min |
| Thu 3 Sept | Colmenar Viejo 08:37 | +7 min | +16 min |
| Wed 2 Sept | Colmenar Viejo 08:38 | +9 min | +16 min |
| Tue 1 Sept | Colmenar Viejo 08:49 | +19 min | +27 min |
| Mon 31 Aug | Colmenar Viejo 08:44 | +15 min | +19 min |
| Fri 28 Aug | Fuencarral 08:21 | +13 min | +15 min |
| Thu 27 Aug | Colmenar Viejo 08:52 | +23 min | +31 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.