reading the signal…
Signals / Object / Street-level imagery
in San Jose, CA·counted·40 all time
Metal roll-down shutters or similar security coverings visibly installed over a storefront.
Counted, not streamed: Storefront Security Shutters 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.