It is in particular older cars, with no ABS or anti-lock breaking system, where the studded tires have an effect. The critics of the ban also say that not enough is known about the polluting effect of the studded tyres.
A ban on studded tires was introduced last winter at Hornsgatan in central Stockholm, and now Uppsala and Gothenburg are following suit in their most busy roads in the city centers.
According to Swedish Radio News, the air around Hornsgatan has not improved significantly after the introduction of the ban, but there have been very few police checks, so many people have continued driving with the studded tires. Only 174 drivers have been fined for ignoring the ban.
Studded winter tires are generally allowed in Sweden between October 1st of October and April th.