Browsing by Author "Fourie, Cornelius"

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    An AHP-based evaluation of maintenance excellence cirteria
    (South African Institute for Industrial Engineering, 2014) Tendayi, Tinashe George; Fourie, Cornelius
    ENGLISH ABSTRACT: A state of Maintenance Excellence is when an organisation has achieved best maintenance practice standards and has reached the benchmark for the performance of maintenance operations. Various models exist in literature that highlight what elements need to be present in an organization in order to achieve maintenance excellence standards. However, these standards have to be prioritised according to the current state of the organisation’s operations. The Analytic Hierarchy Process (AHP) is a technique that is useful in establishing the priority and importance of individual decision-making alternatives through pairwise comparisons. In this study, the AHP process is used to evaluate a set of organisation-specific maintenance excellence criteria. A railway rolling stock maintenance organisation in the Western Cape region of South Africa is used as a case study for this exercise. By applying AHP to the results obtained from a survey conducted at the case study, some inconsistencies were found in the judgments made by the respondents. AHP was then used again to revise these judgments to make them more consistent. The end result of the study was a set of weighted and prioritized maintenance excellence criteria which will be useful in the organization’s endeavors to attain maintenance excellence.
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    Quantifying system reliability in rail transportation in an ageing fleet environment
    (SAIIE, 2015) Conradie, P. D. F.; Fourie, Cornelius; Vlok, Pieter; Treurnicht, Nico
    In recent years the management of physical assets has become increasingly important, especially in asset-intensive organisations. This article presents an approach to quantifying the reliability of rolling stock assets in the rail environment, making use of failure statistics. Failure distributions and the interdependency of different systems are used to determine the impact of component failures on overall system reliability, and to determine the reliability of individual train sets. Recommendations about the future planning of maintenance are included in the article.