reading the signal…
Signals / Object / Mapped places
in Köln, NW·counted·31 all time
A small stone block used for paving, commonly arranged in tightly fitted rows or patterns.
Counted, not streamed: Sett 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.