Open AccessEvaluation of heuristic procedures formation results to select and justify composition of defectiveness parameters of road pavement affecting reliability indicators
Author(s) -
Anatoly Bazhanov
Publication year - 2020
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/832/1/012039
Subject(s) - reliability (semiconductor) , heuristic , selection (genetic algorithm) , statistics , variance (accounting) , delphi method , rank (graph theory) , distribution (mathematics) , computer science , mathematics , operations research , reliability engineering , econometrics , engineering , artificial intelligence , mathematical analysis , power (physics) , physics , accounting , quantum mechanics , combinatorics , business
The research presents effective solution to the problem of evaluation of Heuristic procedures formation results, obtained by the Delphi approach, during the selection and justification of the composition of defectiveness determining parameters of road pavement that affect the indicators of their reliability. The article presents the parameters of the defects of road surfaces of the Penza agglomeration, obtained by diagnostics in order to identify the most important of these parameters in the questionnaire of experts and a single matrix of expert assessments. The author developed the algorithm processing the results of the selection of a subgroup of experts with a close opinion, including the need to conduct expert evaluation of the rank type. According to the variance analysis (presented by the author), a statistical assessment of the significance of differences in the distribution of defectiveness parameters of road pavements affecting some generalized indicator of their reliability, the structure of their influence is determined, while the parameters of the distribution of differences of significant and insignificant differences are assigned to different groups by their degree of influence. The structure of their influence is determined, at the same time parameters that have essential and non-essential difference in the distributions according to the degree of their influence are assigned to different groups. This approach allowed leveling the significance of differences in the assessment of the distribution of defectiveness parameters of road pavements that affect some generalized indicator of their reliability, with the assessment of differences in the average values of the ranks. The comparison of the evaluation of parameters that have an insignificant difference in the average values of ranks assigned to one group, with an estimate for the parameters for the average degree of influence attributed to another group, showing their practical unambiguity. The final structure of groups of defectiveness parameters of road pavements is established, taking into account the priority of their influence on the generalized indicator of reliability of these roads. This heuristic analysis made allowed identifying the most essential parameters affecting the quality of road pavements and their reliability.