reading the signal…
Signals / Object / Mapped places
in Watertown, SD·counted·39 all time
A movable railway mechanism that directs trains from one track to another, using rails and switching components.
Counted, not streamed: Railway Switch 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.