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SKID RESISTANCE TESTING
D F Mason
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Abstract
THE EFFECTS ARE EXAMINED OF ROAD SURFACING ON SKIDDING AND THE METHODS OF EVALUATING THIS. A BRIEF RESUME OF THE VARIOUS METHODS OF MEASURING SKID RESISTANCE IS INCLUDED, TOGETHER WITH RESULTS OF LIMITED TESTING WHICH HAS BEEN CARRIED OUT IN BRITISH COLUMBIA. THE FOUR MAIN METHODS OF MEASURING THE SKID RESISTANCE OF PAVEMENT SURFACES ARE: (1) THE STOPPING DISTANCE METHOD, (2) SKIDDING TRAILER TECHNIQUES, (3) THE INCLINED WHEEL TEST METHODS, AND (4) PORTABLE AND LABORATORY INSTRUMENTS, THE MOST WIDELY USED OF WHICH IS THE PORTABLE SKID RESISTANCE TESTER. THE TESTING PROGRAM USED THIS APPARATUS TO EVALUATE DIFFERENCES IN SKID RESISTANCE BETWEEN HOT MIX AND SEAL COATED PAVEMENTS AT VARIOUS AGES. /CGRA/