At the civic clock at South Arch, Adrian Veil puts clock calibration cards and service boards that use the signal beside the clock is adjusted while transit notices remain posted. The detail is easy to miss in a summary, but it determines whether a posted rule describes the place people actually use.

Adrian Veil is the city services correspondent. On this long dusk visit, the work begins with a dated entry and ends with a second check from someone who did not make the first one.

The clock calibration cards and service boards that use the signal lists 44 service boards with a matching calibration date; the previous window lists 40. Adrian Veil checked both against dated handoffs followed from dispatch to the last public stop. The number is one part of a larger handoff between the office, the people who use the service and the staff expected to maintain it.

The clock keeper trusts the calibration card. Residents rely on the displayed signal at the route entrance. Residents and workers have asked the clerk to keep their accounts beside the source count rather than turn them into a single average.

The service board posts the result and its first operating date. The responsible office has begun the follow-up set by the board, which adopted an amended service interval for the next window.