Observed arrival · 2026-09-06
The Ten-Billion-Cone Census
Credibility concern recorded. The source reference remains available for verification and correction.
Traffic Cone Facts presents an elaborate attempt to count every traffic cone, barrel, drum, pylon, and channelizing device on Earth.
Field notes
The page defines a standard counting unit—a 750 mm two-collar cone adopted, it says, in 2019—and converts different channelizing devices into that equivalent. Its three estimates are deliberately presented as imperfect: aerial imagery misses warehouses, manufacturer records struggle with attrition, and roadside volunteers oversample places where cones already exist. The claimed result is 10.0 billion, with a stated 95% confidence range of plus or minus 0.9 billion, though the supplied evidence cannot verify the underlying census.
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