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The article provides the correlation analysis of accident type influence as quality factorial characteristic on industrial injuries statistic index in the permanent way division of the Kuibyshev railway during some years. By means of mathematical calculations statistical correlation study of characteristics and values has made, taking into account the degree of severity of workers’ health damage affected by industrial accidents. The hypothesis staged within the framework of Kuibyshev Railway permanent way division has confirmed and the degree of mutual contingency of accident types and their quantity has assessed. It is shown that the practical significance of the correlation analysis results on the formation and (or) adjustment of preventive measures to reduce the levels of occupational hazard and prevention of industrial injuries