A decision on the public clock calibration should be judged at the civic clock at South Arch, where the rule changes an ordinary route, shift or service. Date every record and distinguish a current rule from a custom that has simply lasted a long time. The current file is the Year second, late winter window 3 review, not a permanent settlement of every future case.

The clock calibration cards and service boards that use the signal lists 34 service boards with a matching calibration date; the previous window lists 40. Sera Voss checked both against service hours compared with arrival records from the same window. The difference matters because how a service announces its time while the public clock is being calibrated.

The clock keeper trusts the calibration card. Residents rely on the displayed signal at the route entrance. Those objections deserve a clear answer. They are not a reason to keep an uncheckable rule simply because its wording is familiar.

A useful decision names who will do the work, which count will change and when the result comes back to the public table. In this case, the clock is adjusted while transit notices remain posted.

The board recorded the outcome that it adopted an amended service interval for the next window.