reading the signal…
Signals / Object / Street-level imagery
in Baltimore, MD·counted·221 all time
A checkpoint where vehicles pay before passing, typically showing booths, barriers, lanes, and overhead signs.
Counted, not streamed: Toll Gate 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.