C4b 20501
View line C4b
Alerts for train 20501
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
52%
11/21 runs under 3 min
RT coverage: 21 full · 0 partial · 0 no data
On-time · 90 days
38%
25/65 runs under 3 min
RT coverage: 65 full · 0 partial · 0 no data
Typical delay
+4min
Median at arrival, 90 days
30 days: +2 min
P90
+24min
9 in 10 runs arrive with less than this
30 days: +32 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 +55 min · last fix heading to Colmenar Viejo +47 min
- Tue 4 Aug Max en route +45 min · last fix heading to Colmenar Viejo +37 min
- Thu 17 Sept Max en route +60 min · last fix heading to Tres Cantos +35 min
- Fri 18 Sept Max en route +34 min · last fix heading to Madrid-Chamartín-Clara Campoamor +34 min
- Fri 11 Sept Max en route +36 min · last fix heading to Tres Cantos +32 min
Distribution · 90 days
65 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 38% · 25
- 3–10 min 42% · 27
- 10–30 min 12% · 8
- 30+ min 8% · 5
On-time by weekday
- 46% M n=13
- 31% T n=13
- 31% W n=13
- 38% T n=13
- 42% F n=12
- 100% S n=1
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 8 Oct | Colmenar Viejo 19:24 | +5 min | +8 min |
| Wed 7 Oct | Colmenar Viejo 19:26 | +7 min | +14 min |
| Tue 6 Oct | Tres Cantos 19:28 | +1 min | +13 min |
| Mon 5 Oct | Tres Cantos 19:22 | 0 min | +9 min |
| Fri 2 Oct | Colmenar Viejo 19:21 | 0 min | +8 min |
| Thu 1 Oct | Colmenar Viejo 19:36 | +8 min | +25 min |
| Wed 30 Sept | Colmenar Viejo 19:32 | +12 min | +20 min |
| Tue 29 Sept | Colmenar Viejo 19:22 | +2 min | +10 min |
| Mon 28 Sept | Colmenar Viejo 19:20 | 0 min | +8 min |
| Fri 25 Sept | Colmenar Viejo 19:20 | 0 min | +8 min |
| Thu 24 Sept | Colmenar Viejo 19:23 | +2 min | +11 min |
| Wed 23 Sept | Colmenar Viejo 19:25 | +4 min | +12 min |
| Tue 22 Sept | Colmenar Viejo 19:25 | +4 min | +13 min |
| Mon 21 Sept | Colmenar Viejo 19:43 | +22 min | +30 min |
| Fri 18 Sept | Madrid-Chamartín-Clara Campoamor 19:29 | +34 min | +34 min |
| Thu 17 Sept | Tres Cantos 19:46 | +35 min | +60 min |
| Wed 16 Sept | Colmenar Viejo 19:20 | 0 min | +8 min |
| Tue 15 Sept | Colmenar Viejo 19:22 | +2 min | +10 min |
| Mon 14 Sept | Colmenar Viejo 19:20 | 0 min | +8 min |
| Fri 11 Sept | Tres Cantos 19:43 | +32 min | +36 min |
| Thu 10 Sept | Colmenar Viejo 19:20 | 0 min | — |
| Wed 9 Sept | Colmenar Viejo 19:31 | +11 min | +20 min |
| Tue 8 Sept | Colmenar Viejo 19:25 | +5 min | +13 min |
| Mon 7 Sept | Colmenar Viejo 19:24 | +3 min | +12 min |
| Fri 4 Sept | Colmenar Viejo 19:20 | 0 min | +7 min |
| Thu 3 Sept | Colmenar Viejo 19:29 | +8 min | +17 min |
| Wed 2 Sept | Colmenar Viejo 19:18 | 0 min | +7 min |
| Tue 1 Sept | Colmenar Viejo 19:25 | +4 min | +12 min |
| Mon 31 Aug | Colmenar Viejo 20:07 | +47 min | +55 min |
| Fri 28 Aug | Parla 18:13 | +2 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 11 July 2026.