Show Synthetic Tire Skids Farther Safety Council Cites Driving Test on Ice The National Safety Council warned motorists that the war-born war use of ot cold synthetic rubber in most I tires now being produced has increased increased in in- creased the danger of skidding because because be be- cause of less effective atop stop and and go traction ability on snow and ice As A. an early winter battered much of the nation the council said ex ex- winter driving tests Conducted con Con- ducted earlier this year had proved the need for motorists to drive more cautiously with synthetic tires Prot A. A H. H Easton director of of the University of bf Wisconsin's truck truck research project and chairman of tests for the councils council's committee on winter driving hazards was tech supervisor of 01 the latest series aeries of experiments on stopping and traction trac trac- tion Uon abilities of various types type of Urea tires on packed hard snow Natural rubber tires Ures maniac hired before defense requirements forced tire companies into using more synthetic rubber were eight per cent superior to similar present day synthetic tires in stopping on snow mow and 47 per cent cen better In traction ability On glare Ice natural rubber tread treads were 10 0 per cent better in stopping ability nd 26 15 per cent be better I fent er in hl traction The tests tet indicated that on snow and ice even the tho specialized tires Ure winter now appearing on the ma market market showed relatively little overall Improvement improvement im- im provement over conventional tires Ures in comparison with the stopping and traction ability by bl u using reinforced Ur tire chains Prot Prof ProE Easton said The tes test teat report defined types type M of tires special of winter conventional tries win three tread containing embedded materials tine One or snow lacerations and cuts cuts mud tires tire characterized by a deep tread pattern or lug design win snow mud tires Ure combining deep tread with the meat lacerating treats |