Artwork at the station utilizes electronics to provide waiting passengers with indicators of approaching trains, the wind's direction, and sounds from a neighboring wetlands area.
It only had a single warning bell for approaching trains.
Upon receipt of an order, the operator makes copies and sets the signal to indicate to approaching trains that orders are to be picked up.
They spoke about some of the dangers they have faced underground and the need to be constantly on the alert for approaching trains.
The automatic operation comes from an ability to detect if blocks are occupied or otherwise obstructed and then convey that information to approaching trains.
The rails kinked but did not break, so no fault was indicated for approaching trains.
The lights are meant to alert approaching trains on those tracks that there are workers ahead.
Because it is difficult to see approaching trains, the Sefton triangle depot has a level crossing protected by flashing lights.
In practice it was found that a high embankment obscured vision from approaching trains on both lines.
The guard of the train did not go back to warn approaching trains, as required by the rules.