Four custodial machines oversee the loop line, each from an outdoor service yard reached through a street-level arch. Their methods are procedural: lighting, cleaning, warning and routing. Each keeps a manual isolation point, and answering one in its yard is how its district is acknowledged on the Night Circuit.
The four
| Supervisor | Method | Isolation point |
|---|---|---|
| The Lamplighter | Lighting. A locked beam and low sweeps. | An exposed collar, reached by climbing |
| The Street Sweeper | Cleaning. It charges, and stops against striped barriers. | The rear motor, exposed after a barrier |
| The Bellkeeper | Warning. Bell pulses from three landings. | Its clamps, while the bell rests |
| The Dispatcher | Routing. Platforms, shutters and moving bogies. | Its controls, behind the open shutters |
Notes left in the yards
Reyes, who used to take all sixteen district sheets home himself, left his broom against loading barrier three. A Mrs Vale asked for the bell to be delayed until her grandson was asleep, and the request is still on the night sheet though her flat is empty.
See also
Records cited
- The Night Circuit (Beyond Dawn)
- The Last Broom and A Quiet Hour, recovered fragments