reading the signal…
Signals / Event / Building permits stream
in Minneapolis, MN·counted·71K all time
Official permission for interior remodeling or renovation, usually represented by construction paperwork, plans, or work-in-progress interiors.
Counted, not streamed: Alteration Permit has no time series, so it is read as a footprint across places. All-time count by city.
Things that happen: permits, collisions, crimes, inspections. All-time counts.