reading the signal…
Signals / Event / Building permits stream
in Minneapolis, MN·counted·21K all time
Permission to build or modify a garage, usually shown as an approval document with property and construction details.
Counted, not streamed: Garage 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.