A review of signal patterns, maintenance cards and changes submitted by route crews finds a gap between the total in the public summary and the conditions recorded at the signal board at Three Roots Junction. The difference does not prove that anyone misstated the file. It shows what the public count leaves out: two adjacent branches use a different pause after the second knock.
The signal patterns, maintenance cards and changes submitted by route crews lists 69 signals with a dated source and a matching branch label; the previous window lists 63. Tikka Reed checked both against walk-through notes from every branch paired with the posted passage map. The source was checked against a second copy held by Kip Moss. No dated correction to either copy was present when the comparison closed.
The registry follows the written pattern. Route crews say an echo changes how the pause is heard at the junction. The office has not supplied a separate measure that would settle the disagreement, so the two explanations remain competing accounts.
This report supports a narrower finding: the count is repeatable, but it is not enough to decide how route users can distinguish two signals when the branches share an echo.
Alimited route trial starts with a dated sign at each affected junction. The Year fifth, vent change window 1 file remains open for its scheduled decision. The keeper will test both signals from the approach path and the branch interior.
