Operational quality of a truck in expert's assessment
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Mechanical Engineering Faculty, Lublin University of Technology, Polska
Faculty of Administration and Social Science, University of Economics and Innovation in Lublin, Polska
Director for Development, Motor Transport Institute, Polska
Faculty of Transport and Computer Science, University of Economics and Innovation in Lublin, Polska
Faculty of Traffic and Transport Engineering, University of Belgrade, Vojvode Stepe 305, 161904 Belgrade, Serbia
Department of Automobile Engineering, Vilnius Gediminas Technical University, Saulėtekio al. 11, Vilnius 10221, Lithuania
Submission date: 2018-12-06
Final revision date: 2019-02-07
Acceptance date: 2019-02-19
Publication date: 2019-03-29
Corresponding author
Piotr Ignaciuk   

Mechanical Engineering Faculty, Lublin University of Technology, Nadbystrzycka 36, 20-618, Lublin, Polska
The Archives of Automotive Engineering – Archiwum Motoryzacji 2019;83(1):87-101
The article presents the results of expert assessment of the quality of three different branch of trucks in terms of their suitability for long-term rental. The expert assessment is faster and cheaper compared to the analogous evaluation obtained on the basis of operational tests, hence the purpose of this article is to assess the accuracy of the results obtained in expert studies. The reliability characteristics of vehicles, such as: readiness, probability of first failure and distribution of mileage between successive repairs, were used as parameters for empirical quality assessment. Operational tests covered three groups of 30 vehicles. As part of the research, changes in vehicle technical readiness occurring during operation were also assessed. The failures of individual functional systems of the vehicle were also analyzed, which were compared with the results of expert studies. The expert assessment was based on a questionnaire regarding the overall assessment of the reliability and performance of cars. 32 experts - appraisers, with good knowledge of the construction of cars of the tested brands participated in these studies. On the basis of comparisons of the results of the expert assessment with the results of empirical studies, conclusions were drawn regarding the correctness of the assessment made by experts.
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