C4b 20505
View line C4b
Alerts for train 20505
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
75%
15/20 runs under 3 min
RT coverage: 20 full · 0 partial · 0 no data
On-time · 90 days
50%
32/64 runs under 3 min
RT coverage: 64 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +1 min
P90
+25min
9 in 10 runs arrive with less than this
30 days: +8 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
- Mon 31 Aug Max en route +99 min · last fix heading to Parla +99 min
- Tue 28 Jul Max en route +51 min · last fix heading to Madrid-Chamartín-Clara Campoamor +45 min
- Fri 18 Sept Max en route +32 min · last fix heading to Tres Cantos +30 min
- Thu 20 Aug Max en route +30 min · last fix heading to Tres Cantos +30 min
- Tue 4 Aug Max en route +37 min · last fix heading to Colmenar Viejo +28 min
Distribution · 90 days
64 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 50% · 32
- 3–10 min 23% · 15
- 10–30 min 20% · 13
- 30+ min 6% · 4
On-time by weekday
- 42% M n=12
- 38% T n=13
- 54% W n=13
- 46% T n=13
- 69% F n=13
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 23 Oct | Colmenar Viejo 20:09 | +12 min | +15 min |
| Thu 22 Oct | Tres Cantos 20:08 | +3 min | +17 min |
| Wed 21 Oct | Tres Cantos 20:08 | +3 min | +11 min |
| Tue 20 Oct | Tres Cantos 19:58 | +8 min | +8 min |
| Mon 19 Oct | Colmenar Viejo 19:58 | +2 min | +6 min |
| Fri 16 Oct | Colmenar Viejo 19:59 | +2 min | +6 min |
| Thu 15 Oct | Tres Cantos 20:03 | 0 min | +8 min |
| Wed 14 Oct | Tres Cantos 20:23 | +18 min | +27 min |
| Tue 13 Oct | Colmenar Viejo 20:02 | +5 min | +10 min |
| Fri 9 Oct | Tres Cantos 20:02 | 0 min | +30 min |
| Thu 8 Oct | Colmenar Viejo 19:56 | 0 min | +6 min |
| Wed 7 Oct | Colmenar Viejo 19:57 | 0 min | +5 min |
| Tue 6 Oct | Colmenar Viejo 20:00 | +3 min | +10 min |
| Mon 5 Oct | Colmenar Viejo 19:58 | +2 min | +7 min |
| Fri 2 Oct | Colmenar Viejo 20:00 | +1 min | +9 min |
| Thu 1 Oct | Colmenar Viejo 19:58 | 0 min | +8 min |
| Wed 30 Sept | Colmenar Viejo 19:59 | 0 min | +8 min |
| Tue 29 Sept | Colmenar Viejo 19:58 | 0 min | +9 min |
| Mon 28 Sept | Colmenar Viejo 20:00 | +1 min | +9 min |
| Fri 25 Sept | Colmenar Viejo 19:56 | 0 min | +6 min |
| Thu 24 Sept | Madrid-Chamartín-Clara Campoamor 19:52 | +18 min | +18 min |
| Wed 23 Sept | Colmenar Viejo 19:58 | 0 min | +7 min |
| Tue 22 Sept | Colmenar Viejo 19:57 | 0 min | +6 min |
| Mon 21 Sept | Colmenar Viejo 20:15 | +16 min | +24 min |
| Fri 18 Sept | Tres Cantos 20:21 | +30 min | +32 min |
| Thu 17 Sept | Colmenar Viejo 20:08 | +9 min | +18 min |
| Wed 16 Sept | Colmenar Viejo 20:07 | +8 min | +16 min |
| Tue 15 Sept | Colmenar Viejo 19:58 | 0 min | +10 min |
| Mon 14 Sept | Colmenar Viejo 19:58 | 0 min | +7 min |
| Fri 11 Sept | Parla 20:29 | +25 min | +27 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.