reading the signal…
Signals / Object / Street-level imagery
in Rancho Cordova, CA·counted·81 all time
Parallel steel rails fixed to sleepers, forming the trackway used by trains.
Counted, not streamed: Rail Track 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.