reading the signal…
Signals / Object / Street-level imagery
in São Paulo, SP·counted·328 all time
Critical infrastructure includes essential facilities such as hospitals, fire stations, treatment plants, communication towers, and emergency shelters.
Counted, not streamed: Critical Infrastructure 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.