reading the signal…
Signals / Object / Mapped places
in Dortmund, NW·counted·3.2K all time
A lowered curb, where the sidewalk slopes down smoothly to meet the street or crossing.
Counted, not streamed: Lowered Kerb 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.