More info:
http://www.wsdot.wa.gov/research/reports/fullreports/551.1.pdf
Interesting parts:
Studded tires produce their best traction on snow or ice near the freezing mark
and lose proportionately more of their tractive ability at lower temperatures than
do studless or all-season tires.
2. The traction of studded tires is slightly superior to studless tires only under an
ever-narrowing set of circumstances. With less aggressive (lightweight) studs
being mandated, and with the advent of the new “studless” tire, such as the
Blizzak, since the early 1990s, the traction benefit for studded tires is primarily
evident on clear ice near the freezing mark, a condition whose occurrence is
limited. 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.
For those conditions in which studded tires provided better traction than studless
tires, the increment usually was small.
http://www.wsdot.wa.gov/research/reports/fullreports/551.1.pdf
Interesting parts:
Studded tires produce their best traction on snow or ice near the freezing mark
and lose proportionately more of their tractive ability at lower temperatures than
do studless or all-season tires.
2. The traction of studded tires is slightly superior to studless tires only under an
ever-narrowing set of circumstances. With less aggressive (lightweight) studs
being mandated, and with the advent of the new “studless” tire, such as the
Blizzak, since the early 1990s, the traction benefit for studded tires is primarily
evident on clear ice near the freezing mark, a condition whose occurrence is
limited. 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.
For those conditions in which studded tires provided better traction than studless
tires, the increment usually was small.
