C4a 20309
View line C4a
Alerts for train 20309
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line C4a.
The mini-map returns when the train runs
On-time · 30 days
30%
6/20 runs under 3 min
RT coverage: 20 full · 0 partial · 0 no data
On-time · 90 days
17%
11/63 runs under 3 min
RT coverage: 63 full · 0 partial · 0 no data
Typical delay
+11min
Median at arrival, 90 days
30 days: +8 min
P90
+25min
9 in 10 runs arrive with less than this
30 days: +21 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 14 Sept Max en route +92 min · last fix heading to Parla +92 min
- Fri 11 Sept Max en route +92 min · last fix heading to Parla +92 min
- Mon 31 Aug Max en route +92 min · last fix heading to Parla +92 min
- Tue 4 Aug Max en route +84 min · last fix heading to Alcobendas-San Sebastián de los Reyes +83 min
- Fri 18 Sept Max en route +54 min · last fix heading to Madrid-Chamartín-Clara Campoamor +53 min
Distribution · 90 days
63 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 17% · 11
- 3–10 min 29% · 18
- 10–30 min 46% · 29
- 30+ min 8% · 5
On-time by weekday
- 8% M n=12
- 15% T n=13
- 23% W n=13
- 31% T n=13
- 8% F n=12
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 22 Oct | Valdelasfuentes 21:10 | +21 min | +22 min |
| Wed 21 Oct | Alcobendas-San Sebastián de los Reyes 20:54 | +1 min | +9 min |
| Tue 20 Oct | Valdelasfuentes 20:57 | +6 min | +11 min |
| Mon 19 Oct | Valdelasfuentes 20:57 | +6 min | +11 min |
| Fri 16 Oct | Valdelasfuentes 21:11 | +23 min | +23 min |
| Thu 15 Oct | Valdelasfuentes 20:55 | 0 min | +7 min |
| Wed 14 Oct | Valdelasfuentes 21:08 | +15 min | +18 min |
| Tue 13 Oct | Alcobendas-San Sebastián de los Reyes 20:54 | +1 min | +10 min |
| Fri 9 Oct | Valdelasfuentes 21:13 | +20 min | +23 min |
| Thu 8 Oct | Alcobendas-San Sebastián de los Reyes 20:53 | +1 min | +6 min |
| Wed 7 Oct | Valdelasfuentes 21:02 | +14 min | +14 min |
| Tue 6 Oct | Valdelasfuentes 21:12 | +20 min | +23 min |
| Mon 5 Oct | Valdelasfuentes 20:55 | 0 min | +10 min |
| Fri 2 Oct | Valdelasfuentes 21:09 | +15 min | +19 min |
| Thu 1 Oct | Alcobendas-San Sebastián de los Reyes 20:54 | 0 min | +16 min |
| Wed 30 Sept | Valdelasfuentes 20:56 | +7 min | +14 min |
| Tue 29 Sept | Madrid-Chamartín-Clara Campoamor 20:58 | +25 min | +25 min |
| Mon 28 Sept | Valdelasfuentes 20:56 | +8 min | +18 min |
| Fri 25 Sept | Valdelasfuentes 20:54 | +6 min | +8 min |
| Thu 24 Sept | Valdelasfuentes 20:57 | +8 min | +12 min |
| Wed 23 Sept | Valdelasfuentes 20:58 | +10 min | +13 min |
| Tue 22 Sept | Valdelasfuentes 20:56 | +8 min | +15 min |
| Mon 21 Sept | Valdelasfuentes 21:09 | +20 min | +24 min |
| Fri 18 Sept | Madrid-Chamartín-Clara Campoamor 21:22 | +53 min | +54 min |
| Thu 17 Sept | Valdelasfuentes 20:52 | +3 min | +10 min |
| Wed 16 Sept | Valdelasfuentes 20:55 | +7 min | +29 min |
| Tue 15 Sept | Valdelasfuentes 21:02 | +14 min | +15 min |
| Mon 14 Sept | Parla 21:22 | +92 min | +92 min |
| Fri 11 Sept | Parla 21:21 | +92 min | +92 min |
| Thu 10 Sept | Valdelasfuentes 21:03 | +15 min | +18 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.