Start with signal patterns, maintenance cards and changes submitted by route crews. It is the source used to decide how route users can distinguish two signals when the branches share an echo; it is not the decision itself. The rule only works if the source describes conditions at the signal board at Three Roots Junction.
Known: the current file counts 84 signals with a dated source and a matching branch label, compared with 90 in the prior window. The clerk closes this route file and gives the next window a fresh walk. The entries have dates and a named clerk.
Disputed: The registry follows the written pattern. Route crews say an echo changes how the pause is heard at the junction. One side emphasizes the posted total; the other points to two adjacent branches use a different pause after the second knock.
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 sign question to a new route review without reopening this one. The next window starts with a fresh record.
