reading the signal…
Signals / Event / Building permits stream
in Minneapolis, MN·counted·90K all time
Permission for heating, cooling, ventilation, or equipment work, typically associated with contractors and building systems.
Counted, not streamed: Mechanical 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.