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PhysicsIsFun t1_j11b69g wrote

I don't think they used salt on the roads in Wisconsin when I was a kid (50s and 60s). The roads seemed to always have packed snow on them. I lived in LaCrosse and we would sled down roads on the bluffs. They did spread sand. Which was no doubt more environmentally sound, but did not do a good job of clearing the ice and packed snow.

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DangoQueenFerris t1_j12fmvy wrote

I was under the impression sand was just to give traction. Nothing to do with melting snow.

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RadomirPutnik t1_j12oweg wrote

It can help melt ever so slightly with some sunlight (due to the darker color), but you are correct that melting is not really part of the equation.

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