%0 Journal Article
%T Development of an objective determination of a slip with a portable inclineable articulated strut slip tester (PIAST)
%J Safety science
%D 2010
%A Chang, Wen-Ruey
%A Brunette, Christopher
%A Chang, C. C.
%V 48
%N 1
%P 100-109
%X A portable inclineable articulated strut slip tester (PIAST) is a slipmeter that is widely used in the USA to measure coefficient of friction (COF) at the shoe sole and floor interface. A determination of a slip at the measurement interface, which is currently judged subjectively by operators, plays a crucial role in deciding the outcomes of a PIAST measurement. The goal of this study was to develop an objective determination of a slip based on the movement of the weight used by the slipmeter. The displacement of the weight and the time duration of consecutive strikes in a measurement were used to derive the objective slip criterion. Various footwear materials, floor materials and surface conditions were used to cover a wide range of COF values. The results of the regression analysis indicated that the objective COF predicted by the method developed in the current study was significant (R2 = 0.997, β = 0.991, p < 0.001) in predicting the subjective COF determined by the operator.<p />
%G en
%I Elsevier Publishing
%@ 0925-7535
%U http://dx.doi.org/10.1016/j.ssci.2009.07.001