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Show . Highway speed limit warning signs are not a motorist's best guide to safe speeds on snow-covered r icy roadways warns the Utah Safety Council. ActuaL'y, it may be dangerous at times to travel at even half the speed allowed al-lowed by law. The winter-wise motorist carefully adjusts his rate of movement to compensate for any dangerous highway conditions. con-ditions. And under extreme snow and ice conditions, he knoVs he'll be safer using tire chains. National Safety Council tests proved chains cut braking distance dis-tance in half. |