reading the signal…
Signals / Object / Street-level imagery
in Greenfield, WI·counted·133 all time
The sheltered space beneath a bridge, typically forming a passage for roads, paths, or railways.
Counted, not streamed: Bridge Underpass 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.