C4b 20439
View line C4b
Alerts for train 20439
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
18%
3/17 runs under 3 min
RT coverage: 17 full · 0 partial · 0 no data
On-time · 90 days
10%
6/59 runs under 3 min
RT coverage: 59 full · 0 partial · 0 no data
Typical delay
+17min
Median at arrival, 90 days
30 days: +13 min
P90
+39min
9 in 10 runs arrive with less than this
30 days: +35 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 14 Aug Max en route +99 min · last fix heading to Parla +99 min
- Fri 11 Sept Max en route +77 min · last fix heading to Madrid-Chamartín-Clara Campoamor +74 min
- Fri 9 Oct Max en route +82 min · last fix heading to Tres Cantos +73 min
- Tue 4 Aug Max en route +60 min · last fix heading to Madrid-Chamartín-Clara Campoamor +60 min
- Wed 12 Aug Max en route +54 min · last fix heading to Madrid-Chamartín-Clara Campoamor +54 min
Distribution · 90 days
59 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 10% · 6
- 3–10 min 17% · 10
- 10–30 min 54% · 32
- 30+ min 19% · 11
On-time by weekday
- 22% M n=9
- 8% T n=13
- 8% W n=12
- 8% T n=12
- 8% F n=13
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 16 Oct | Colmenar Viejo 09:52 | +10 min | +15 min |
| Thu 15 Oct | Colmenar Viejo 10:02 | +20 min | +25 min |
| Wed 14 Oct | Tres Cantos 10:00 | +8 min | +18 min |
| Tue 13 Oct | Tres Cantos 10:09 | +18 min | +29 min |
| Fri 9 Oct | Tres Cantos 11:04 | +73 min | +82 min |
| Thu 8 Oct | Colmenar Viejo 09:55 | +14 min | +21 min |
| Wed 7 Oct | Colmenar Viejo 10:06 | +25 min | +30 min |
| Tue 6 Oct | Tres Cantos 10:03 | +28 min | +28 min |
| Mon 5 Oct | Colmenar Viejo 09:55 | +11 min | +15 min |
| Fri 2 Oct | Colmenar Viejo 09:57 | +5 min | +16 min |
| Thu 1 Oct | Colmenar Viejo 09:48 | 0 min | +11 min |
| Tue 29 Sept | Colmenar Viejo 09:48 | +5 min | +14 min |
| Fri 25 Sept | Colmenar Viejo 09:57 | +13 min | +21 min |
| Thu 24 Sept | Colmenar Viejo 10:03 | +19 min | +28 min |
| Wed 23 Sept | Colmenar Viejo 09:44 | 0 min | +9 min |
| Tue 22 Sept | Tres Cantos 10:24 | +45 min | +45 min |
| Mon 21 Sept | Colmenar Viejo 09:43 | 0 min | +8 min |
| Fri 18 Sept | Colmenar Viejo 10:03 | +20 min | +28 min |
| Thu 17 Sept | Colmenar Viejo 10:12 | +29 min | +37 min |
| Wed 16 Sept | Colmenar Viejo 10:20 | +36 min | +44 min |
| Tue 15 Sept | Colmenar Viejo 09:56 | +13 min | +21 min |
| Mon 14 Sept | Colmenar Viejo 09:55 | +11 min | +20 min |
| Fri 11 Sept | Madrid-Chamartín-Clara Campoamor 10:33 | +74 min | +77 min |
| Thu 10 Sept | Colmenar Viejo 09:58 | +14 min | +22 min |
| Wed 9 Sept | Colmenar Viejo 10:00 | +17 min | +26 min |
| Tue 8 Sept | Colmenar Viejo 10:02 | +19 min | +27 min |
| Mon 7 Sept | Colmenar Viejo 09:55 | +12 min | +20 min |
| Fri 4 Sept | Colmenar Viejo 09:49 | +5 min | +14 min |
| Thu 3 Sept | Colmenar Viejo 09:49 | +6 min | +14 min |
| Wed 2 Sept | Colmenar Viejo 09:49 | +5 min | +13 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.