C4b 20515
View line C4b
Alerts for train 20515
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
50%
10/20 runs under 3 min
RT coverage: 20 full · 0 partial · 0 no data
On-time · 90 days
31%
20/64 runs under 3 min
RT coverage: 64 full · 0 partial · 0 no data
Typical delay
+4min
Median at arrival, 90 days
30 days: +3 min
P90
+15min
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
- Mon 31 Aug Max en route +98 min · last fix heading to Parla +98 min
- Tue 4 Aug Max en route +55 min · last fix heading to Madrid-Chamartín-Clara Campoamor +55 min
- Tue 8 Sept Max en route +30 min · last fix heading to Tres Cantos +26 min
- Thu 3 Sept Max en route +24 min · last fix heading to Tres Cantos +24 min
- Tue 21 Jul Max en route +26 min · last fix heading to Colmenar Viejo +18 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 31% · 20
- 3–10 min 48% · 31
- 10–30 min 17% · 11
- 30+ min 3% · 2
On-time by weekday
- 25% M n=12
- 25% T n=12
- 23% W n=13
- 31% T n=13
- 46% F n=13
- 100% S n=1
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 9 Oct | Tres Cantos 21:29 | 0 min | +12 min |
| Thu 8 Oct | Colmenar Viejo 21:25 | +5 min | +10 min |
| Wed 7 Oct | Colmenar Viejo 21:35 | +15 min | +21 min |
| Tue 6 Oct | Colmenar Viejo 21:30 | +9 min | +13 min |
| Mon 5 Oct | Colmenar Viejo 21:24 | +3 min | +14 min |
| Fri 2 Oct | Colmenar Viejo 21:28 | +5 min | +14 min |
| Thu 1 Oct | Colmenar Viejo 21:24 | +1 min | +13 min |
| Wed 30 Sept | Colmenar Viejo 21:24 | +1 min | +11 min |
| Tue 29 Sept | Colmenar Viejo 21:25 | +2 min | +10 min |
| Mon 28 Sept | Colmenar Viejo 21:24 | +2 min | +15 min |
| Fri 25 Sept | Colmenar Viejo 21:24 | +2 min | +15 min |
| Thu 24 Sept | Colmenar Viejo 21:27 | +4 min | +15 min |
| Wed 23 Sept | Colmenar Viejo 21:24 | +1 min | +15 min |
| Tue 22 Sept | Colmenar Viejo 21:28 | +5 min | +14 min |
| Mon 21 Sept | Colmenar Viejo 21:24 | +1 min | +9 min |
| Fri 18 Sept | Colmenar Viejo 21:35 | +12 min | +20 min |
| Thu 17 Sept | Colmenar Viejo 21:25 | +2 min | +11 min |
| Wed 16 Sept | Colmenar Viejo 21:31 | +8 min | +16 min |
| Tue 15 Sept | Colmenar Viejo 21:24 | +2 min | +14 min |
| Mon 14 Sept | Colmenar Viejo 21:30 | +8 min | +16 min |
| Fri 11 Sept | Colmenar Viejo 21:33 | +10 min | +19 min |
| Thu 10 Sept | Colmenar Viejo 21:31 | +9 min | +17 min |
| Wed 9 Sept | Colmenar Viejo 21:26 | +3 min | +11 min |
| Tue 8 Sept | Tres Cantos 21:55 | +26 min | +30 min |
| Mon 7 Sept | Colmenar Viejo 21:31 | +9 min | +17 min |
| Fri 4 Sept | Colmenar Viejo 21:24 | +2 min | +10 min |
| Thu 3 Sept | Tres Cantos 21:40 | +24 min | +24 min |
| Wed 2 Sept | Colmenar Viejo 21:26 | +3 min | +15 min |
| Tue 1 Sept | Colmenar Viejo 21:24 | +2 min | +13 min |
| Mon 31 Aug | Parla 21:52 | +98 min | +98 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.