reading the signal…
Signals / Object / Street-level imagery
in Paris, IDF·counted·94 all time
A fire extinguisher is a portable emergency device, typically a pressurized red cylinder with a hose or handle.
Counted, not streamed: Fire Extinguisher has no time series, so it is read as a footprint across places. All-time count by city.
Things that physically exist: street furniture, signs, buildings. All-time counts.