reading the signal…
Signals / Object / Street-level imagery
in Madera, CA·counted·55 all time
A roadway marked by spilled or accumulated oil, typically showing dark slicks and stained pavement.
Counted, not streamed: Oil Stained Roadway 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.