reading the signal…
Signals / Object / Street-level imagery
in New Orleans, LA·counted·474 all time
A leaf pile is a collection of fallen leaves, typically gathered on lawns, sidewalks, or woodland floors.
Counted, not streamed: Leaf Pile 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.