Start with switch checks, arrival cards and the outgoing crew’s handoff note. It is the source used to decide how the next operator verifies a signal check made by a temporary relief worker; it is not the decision itself. The rule only works if the source describes conditions at the rail switch at Blackglass Junction.
Known: the current file counts 58 departures with a signed signal check before the next crew arrives, compared with 58 in the prior window. The clerk closes this docket and assigns the next window a fresh scope. The entries have dates and a named clerk.
Disputed: The rail board accepts both marks. Carriers want the name and time attached to each one. One side emphasizes the posted total; the other points to a relief worker uses a different mark from the full-time switch crew.
Why it matters: the decision determines which residents can rely on the service and which staff must carry out the change. The file does not settle that by itself.
Next: The board closed this docket after it sent a separate contract question to a new hearing without reopening this file. The next window starts with a fresh record.
