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Curious to hear your thoughts on the "Bridge Freezes Before Road Surface" signs.

To me, that seems like a sign where the "let nature sort it out" way of learning is too dangerous to just YOLO it sign-less (despite generally agreeing that we have too many warning signs).




If there’s an invisible danger, that could realistically cause a serious accident, then a sign makes sense.

Only ever seen that sign in the US (driving through the Sierras). Never seen a similar UK version. I guess we must have superior bridges ;)


;) I doubt it's a difference in chemistry or physics. Ambient temps play a large role, so the Gulf Stream's and elevation's influence does as well (dry adiabatic lapse rate is 5.5°F per 1000 ft or 9.8°C per km).




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