fried1765
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That must be some sort of west coast/intermountain west thing. On a couple road trips back in the 70s/80s I noticed lots of signs (mostly federal highways in the middle of nowhere) with "fresh oil" or "sanded oil" signs posted. Never noticed any difference between that section of road and any other. Figured it might be some sort of low budget surface rejuvenation, but wasn't sure.
Don't think I've ever seen that east of the Rockies.
"surface rejuvenation"
Some towns on Cape Cod do this oil/sand or stone surface treatment on their roads, and have been doing so for at least the past 75 years.
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