Here they won't admit that salting causes road to become slippery, but there are studies, also there is studies about how mooses are lured to salted road and good % of moose car collisions are because of this, traffic safety department remains silent...
Today they had broken a law again, road near me is not allowed to be salted because of enviromental issues, but they had salted it, lot of slush, everytime car comes from opposite direction windscreen is full of salty goo which is really difficult to remove needs multiple times more washer fluid than normal water spray you get from roads, also lights get covered on that salt water because oncoming traffic, so can't see much of anything, have to stop every 10km to clean lights and windshield, I carry similar brush thingy that there are on petrol stations so cleaning is quite easy, but it is really annoying.
Slush is most dangerous thing, if one needs to drive bit closer to side of road because big truck coming against almost middle of road, then there is 5cm of slush and grip is gone immediately when you hit that, even driving 70kph, much more dangerous than ice.
So I have to call department responsible of contolling salt usage and make a complaint again, last time when I did that caused snow plowing company to be changed, there was lot of other ones complaining about it too.
Only reason why they salt roads is to support those transport companies, so they can use too big trucks and save on tires, slush does not affect those. Also it is cheaper to put salt on road twice a day than plow snow 10 times a day which sometimes is needed because of constant snow fall.
Last winter was good in there that it was too cold for salt most of time, it does not work when it is close to -20C, what was noted is that there was lot less accidents last winter