reading the signal…
Signals / Object / Mapped places
in Barcelona, CT·counted·88 all time
A road sign displaying a thirty-mile-per-hour speed limit, usually featuring bold numerals and a circular design.
Counted, not streamed: 30 MPH Sign 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.