Open AccessProper use of technical risk assessment tools as an element of the railway safety culture
Author(s) -
O. I. Verevkina,
I A Veprinyak
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1151/1/012001
Subject(s) - matrix (chemical analysis) , scale (ratio) , statement (logic) , risk analysis (engineering) , risk assessment , computer science , reliability engineering , mathematical optimization , mathematics , engineering , geography , medicine , materials science , cartography , computer security , political science , law , composite material
The work is aimed at developing ideas and improving the technical means of risk assessment – the risk matrix. A typical risk matrix defined by regulatory sources is considered. An original approach to evaluating the effectiveness of the risk matrix with associated scales is proposed. The definition of the risk matrix with minimum scale spacing is introduced and the existence of this matrix is proved. It is shown by example that a matrix with minimum scale spacing is a more accurate tool for determining the risk category compared to matrices with wider scale spacing. The problem of finding the parameters of such a matrix from the initial data in a mathematical statement is formulated. One of the branches of the developed simplified algorithm for constructing such a matrix is given.