The effectiveness of the traditional risk analysis approach is enhanced by the integration of the fuzzy logic and Multi-Criteria Decision Making (MCDM) methods. In fact, human decisions are ambiguous and blurred and do not fit to express with absolute numerical values. For this reason, it is more realistic to use verbal variables in modeling human decisions. In this paper, a new fuzzy based hazard evaluation approach is proposed to deal with the risk assessment process. The proposed methodology consists on MCDM with a fuzzy system which includes a hybrid structure consists the Pythagorean Fuzzy Analytic Hierarchy Process (PFAHP) method with cosine similarity, and also Neutrosophic Analytic Hierarchy Process (NFAHP) to support facing of uncertainty in the risk assessment process for asphalt production, laying and coating services which are important and should be examined in terms of occupational health and safety. To the best of our knowledge, this study is the first to propose facing uncertainty in the hazard evaluations and risk assessment for asphalt production, laying, and coating services. As an outcome of the analysis by the proposed method, according to PFAHP and NFAHP methodologies the criterions “manometer size” and “calibration” are found to be most critical factors, respectively.
30 January 2021 in International Journal of Advances in Engineering and Pure Sciences
When the subject is change, there are a few options: The first is to lead the change and make the rules, the second is to be a quick follower of the change and not to fall behind, and the third is to wait for the change to change you. Industry 4.0, as one of the largest drivers of change, makes its presence felt in all work fields and enables new applications to participate in different sectors. The main question here is how a multi-disciplinary and proactive domain like Occupational Health and Safety (OHS) will be affected by the winds of change in Industry 4.0. Technological developments have changed the substance of the problems and the variety of solutions in the OHS domain. In this paper, the components forming the substance of the Industry 4.0 philosophy are introduced, and good operational examples of these components in OHS have been investigated. The purpose of this study is to consider the effect of Industry 4.0 on the OHS domain and make it more capable of being defined in a theoretical context. Hence, the advantages and disadvantages of the subject are discussed by introducing Industry 4.0-based OHS applications for different sectors in Turkey.
31 October 2021 in Düzce Üniversitesi Bilim ve Teknoloji Dergisi
Imagining, thinking, producing, developing and changing what you produce are among the main traits that make human beings human. Human beings question their raison d’être, their life, the quality of their lives; in other words, they ask why and how. All these inquiries result in the production of information, a flow of the information produced, and sometimes a product. Today, in a world where production takes place at an unprecedented pace, one needs to possess the technology to keep up with developments. This is a dynamic capability and must be continuously developed to make it endure. Electric vehicles, a gift of technological developments of the world of today, are a combination of imagination, a needs assessment, and sustainable innovations. This study addressed the problem of electric car selection and included a case study involving six criteria and ten alternatives. The proposed decision model has integrated AHP and ELECTRE methods with interval-valued spherical fuzzy sets. The novelty of this study stems from evaluating the performance of electric cars using IVSF-AHP-ELECTRE and selecting accordingly for the first time. In this study, the level of importance of battery capacity, autonomous driving, charging network, price, efficiency and performance criteria were determined. A ranking was then made for the electric car alternatives based on these criteria.
Disasters are inevitable facts of life. It is difficult to deal with disasters and emergencies because of the uncertainties they contain. Managing disasters and emergencies requires integrity with before and after processes. No matter how well-informed people may be when faced with a disaster, they may not act consciously due to the shock of the event, fear and anxiety. Therefore, the recovery phase after a disaster is very important. In the presented paper, meeting areas after a disaster for Istanbul, which is one of the closest witnesses of the earthquake reality, were examined. The motivation of the paper is to evaluate the assembly areas in Istanbul on the basis of all districts under expert opinions and to compare and rank the suitability of the currently existing emergency assembly areas for the expected major Istanbul earthquake. This ranking was made by the help of the fuzzy logic integration of the Multi Attributive Ideal Real Comparative Analysis (MAIRCA) method, which is one of the Multi-Criteria Decision-Making Techniques (MCDM). It is thought that this ranking will be useful in revealing the current situation of the districts and raising awareness. As far as is known, according to the results obtained from the paper in which the spherical fuzzy logic integrated MAIRCA technique was used for the first time, Kadıköy district was determined as the district with the best conditions assembly areas.
8 August 2024 in International Journal of Occupational Safety and Ergonomics
In the construction industry, most safety culture studies are limited to a single country, with minimal attention to cross-country studies. This limits creating a foundation for a robust framework and reliable safety culture scale. This study addresses this gap by studying safety culture in 10 countries, including those without previous studies. The survey instrument, completed by 311 construction employees, identified seven key factors measuring safety culture, with content and construct validity ensuring the reliability and validity of survey findings. Results indicated that work experience, education level and employment status have significant impacts on employees' safety culture. Additionally, similarities and differences in these factors across countries were investigated, and the fatalism and optimism factor and the work pressure and priority factor are the most significant contributors to the weakening of safety culture in the construction industry. This research allows industry practitioners to systematically assess on-site safety culture, oversee practices and improve.