Originally Posted by
Hypno Toad
Name just one source of liquid water in the over night hours when ambient temps are below 0f, besides car exhaust, that would cause ice to form at intersections?? Without another source of liquid water, you have nothing to create ice on the road surface.
Moisture is in the air... And if you giving black ice example only at intersections, you probably never went outside your city to see miles, and miles of black ice on freeways...
Ice on the roads can form from condensation from hot/warm tires rolling on a very cold road surface...
And now little fine print... I'm pretty sure cyccommute knows what he is talking about. You also have some interesting points... I just use common sense regarding this topic...nothing more, nothing less...