What has the weather been like in Liverpool? In south Wales, twice this week we have had rain in the evening followed by a heavy frost. Tuesday morning was awful. Sheet of ice on everything. I saw several vehicles, including a bus, slide past the house with all wheels locked. Light snow or frost is easy enough to brush off the third rail. Solid ice, not so easy.
Do any third rail TOCs run ad hoc trains through the night to try and keep things going? I recall chatting to a guard in the 1990s. He worked a pair of EPBs between Victoria and Gillingham overnight.