C4b 27501
View line C4b
Alerts for train 27501
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
78%
7/9 runs under 3 min
RT coverage: 9 full · 0 partial · 0 no data
On-time · 90 days
57%
12/21 runs under 3 min
RT coverage: 21 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +1 min
P90
+21min
9 in 10 runs arrive with less than this
30 days: +5 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
- Sat 8 Aug Max en route +39 min · last fix heading to Colmenar Viejo +31 min
- Sun 9 Aug Max en route +30 min · last fix heading to Parla +30 min
- Sat 15 Aug Max en route +21 min · last fix heading to Tres Cantos +21 min
- Sat 19 Sept Max en route +21 min · last fix heading to Colmenar Viejo +13 min
- Sun 23 Aug Max en route +19 min · last fix heading to Colmenar Viejo +12 min
Distribution · 90 days
21 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 57% · 12
- 3–10 min 14% · 3
- 10–30 min 19% · 4
- 30+ min 10% · 2
On-time by weekday
- 100% M n=1
- — T n=0
- — W n=0
- — T n=0
- — F n=0
- 50% S n=10
- 60% S n=10
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 12 Oct | Colmenar Viejo 22:03 | +1 min | +9 min |
| Sun 11 Oct | Colmenar Viejo 22:01 | 0 min | +6 min |
| Sat 10 Oct | Colmenar Viejo 22:05 | +3 min | +10 min |
| Sun 4 Oct | Colmenar Viejo 22:02 | 0 min | +13 min |
| Sat 3 Oct | Colmenar Viejo 22:03 | 0 min | +8 min |
| Sun 27 Sept | Colmenar Viejo 22:06 | +3 min | +11 min |
| Sat 26 Sept | Colmenar Viejo 22:04 | +1 min | +10 min |
| Sun 20 Sept | Colmenar Viejo 22:03 | 0 min | +11 min |
| Sat 19 Sept | Colmenar Viejo 22:17 | +13 min | +21 min |
| Sun 13 Sept | Colmenar Viejo 22:12 | +9 min | +18 min |
| Sat 12 Sept | Colmenar Viejo 22:04 | 0 min | +9 min |
| Sun 23 Aug | Colmenar Viejo 22:15 | +12 min | +19 min |
| Sat 22 Aug | Colmenar Viejo 22:04 | +1 min | +11 min |
| Sun 16 Aug | Parla 20:56 | +1 min | +1 min |
| Sat 15 Aug | Tres Cantos 22:15 | +21 min | +21 min |
| Sun 9 Aug | Parla 21:25 | +30 min | +30 min |
| Sat 8 Aug | Colmenar Viejo 22:34 | +31 min | +39 min |
| Sun 2 Aug | Colmenar Viejo 22:03 | 0 min | +11 min |
| Sat 1 Aug | Colmenar Viejo 22:15 | +11 min | +20 min |
| Sun 26 Jul | Colmenar Viejo 22:04 | +1 min | +10 min |
| Sat 25 Jul | Colmenar Viejo 22:06 | +3 min | +11 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.