reading the signal…
Signals / Object / Mapped places
in Merzig, SL·counted·38 all time
Steel used as a construction or manufacturing material, typically appearing as sheets, beams, bars, or coils.
Counted, not streamed: Steel 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.