reading the signal…
Signals / Object / Street-level imagery
in Austin, TX·counted·422 all time
Loose rocks or boulders visibly fallen onto a roadway from an adjacent slope or cliff.
Counted, not streamed: Rockfall on Road 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.