CCTV-monitored manual barrier level crossing on the Anglia route (ELR HEB).
Information only — always follow the signals and barriers at the crossing. Predictions may be wrong.
| 15:15 | 🚆 2O39 | Hertford East → London Liverpool Street Up (N → S) | active |
| 15:20 | 🚆 2O38 | London Liverpool Street → Hertford East Down (S → N) | approaching |
On today’s timetable, St Margarets crossing is predicted to be closed for about 4 h 42 min between 06:00 and 22:00, across roughly 47 closures. The longest single predicted closure is 10 minutes. Freight paths scheduled “as required” — most don’t run on any given day — aren’t counted here; when one does run, the live timeline above shows it.
Longest closure so far today: 6.9 min (07:12–07:19, 2 trains), timed from trains actually seen on the signalling wire — the window edges use the same per-type margins as the forecast, since barrier positions aren't in any feed we can read.
Closures cluster around 07:00–08:00 in the morning and around 12:03–13:03 in the middle of the day. Gaps between closures are longest outside those windows. Other days run a different timetable, so the peaks move.
St Margarets is a cctv-monitored manual barrier crossing (CCTV) on the Broxbourne–Hertford East line (Anglia route · ELR HEB). A signaller monitors the crossing, confirms it is clear, and lowers the barriers ahead of each train. Forecasts here combine the working timetable with live train-movement data (and live signalling where the crossing has it), so they reflect actual running including delays and freight — though they can still be wrong when the network is disrupted.
We score this page against what actually happened on the railway — over the last 7 days that covered 548 trains through this crossing.
100.0% of observed passes were being warned about on this page when they passed, and 99.6% of the warnings we could verify came true.
Typical timing error was ±10s (9 in 10 within 146s). This scores when trains pass — barrier movements aren't in the public feeds we can score against.