reading the signal…
Signals / Object / Mapped places
in Mannheim, BW·counted·36 all time
Natural or processed rock used as material, typically appearing as stones, gravel, chunks, slabs, or aggregate.
Counted, not streamed: Rock Material 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.