The Traffic Accident Reconstruction Origin -ARnews-

Tire wear and skidding friction on snow

Alan Billing (arcon@pathcom.com)
Wed, 8 Jan 1997 09:18:54 -0500 (EST)

Has anyone data on the effect of tread wear on skidding
friction of car tires on tracked/compacted snow or packed
snow/ice? Effects on wet pavement are well known. Data
I have on ice is conflicting - 40% reduction on ice arena
tests in SAE 960959, and near zero effect quoted in
SAE 960657. However, the latter's authors would expect
a considerable difference in performance for used vs. new
tires on packed snow where the tread would interact with
the snow , but unfortunately present no data. Any help,
and any vaguely relevant sources of data, will be very
welcome.

Alan Billing
arcon@pathcom.com

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