This article focuses on the issue of pavement wear, but it turns out in a lot of situations studded tires are less safe than studless tires, a thread....
“For the majority of test results reviewed for snow, and for ice at lower temperatures, studded tires performed as well as or worse than the Blizzak tire.” wsdot.wa.gov/research/repor…
Studded tires cause your ABS brakes to be less effective researchgate.net/publication/31…
Studded tires cost more lives than they save (thanks to increased emissions and the impact of mining the cobalt needed for the studs) sciencedaily.com/releases/2018/…
Turns out there’s only one narrow set of circumstances where studs are better
“Studs are most effective on ice at or near (zero) and lose their efficacy as temperatures drop and the ice becomes too hard for the studs to grip or when temperatures rise and ice melts to slush...”
“Studs are most effective on ice at or near (zero) and lose their efficacy as temperatures drop and the ice becomes too hard for the studs to grip or when temperatures rise and ice melts to slush...”
Sure but we get a lot of ice, right? I couldn’t find stats for NL but even in Alaska those conditions where studs are better is 6% of the time. In Ontario, 2%. That means the rest of the time you’d be better with studless tires
Tire companies have invested a lot in creating modern rubber compounds that stay sticky in cold temperatures, to the point they now outperform ye olde studded tires 
Some people have been talking of banning studded tires. If the concern is they damage roads, why not quantify that damage and add an additional fee? People who really need them will still get them, government gets $$ to repair the damage, everyone else goes studless
