Comments by "Roger Scott Cathey" (@rogerscottcathey) on "Centerline: The Surprising History of Lane Markings" video.

  1. Cant find national average of paint and glass beads used to mark lanes, but deriving from Pennsylvania and simply multiplying by 50, approx. 80,000,000 gallons of paint constitute our national paint coverage and 275 tons of reflector beads. No idea how far off that est. is.
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