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Multiattribute Selection from Alternative Designs of Infrastructure Components for Accidental Situations
Author(s) -
Zavadskas Edmundas K.,
Vaidogas Egidijus R.
Publication year - 2009
Publication title -
computer‐aided civil and infrastructure engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.773
H-Index - 82
eISSN - 1467-8667
pISSN - 1093-9687
DOI - 10.1111/j.1467-8667.2009.00593.x
Subject(s) - selection (genetic algorithm) , accidental , computer science , risk analysis (engineering) , business , artificial intelligence , physics , acoustics
The design of infrastructure systems for “accidental” situations, i.e., abnormal service conditions, may include a comparison of alternative design solutions of system components. These solutions are compared by means of applying a universal methodology known as a multiattribute selection (MAS). The alternative designs are described by a number of attributes that characterize each of them. Failure probability and quantitative measure of the risk are used as safety‐related attributes of the alternative designs. This article shows how to carry out the MAS in the presence of epistemic uncertainties in safety‐related attributes. Distributions of epistemic uncertainties are specified by means of methods used for quantitative risk assessment. The MAS is carried out as a propagation of these uncertainties. The Monte Carlo simulation is used to propagate uncertainties through the algorithm of MAS. The approach proposed in this article is illustrated by two examples, which consider alternative designs of a protective barrier and alternative sprinkler systems.