Assessment of Occupational Risks in Construction Sites Using Interval Type-2 Fuzzy Analytic Hierarchy Process
This paper describes a method for assessing risk of the workers at construction sites using interval type-2 fuzzy analytic hierarchy process. Historical accident data, subjective judgments by the experts and relative importance of the risk factors are combined together to determine the current risk level of construction sites. The linguistic terms associated with the model are represented by interval type-2 trapezoidal fuzzy numbers. The proposed method can identify the risk factors which are most important in improving worker safety and, therefore, determines the areas on which the management should emphasize in order to improve the safety of the workers. The application potentiality of this model has been demonstrated by a case example of risk analysis of a construction industry.
KeywordsRisk assessment Linguistic variables Type-2 trapezoidal fuzzy numbers Interval type-2 fuzzy analytic hierarchy process
The authors are thankful to the anonymous reviewers for their comments and suggestions to improve the quality of the paper. The authors express their humble gratitude to Mr. Krishna Nirmalya Sen, President, American Society of Safety Engineers, India Chapter, for his expert opinion and kind cooperation in the process of execution of the developed model. This work is partially supported by DST-PURSE Programme of University of Kalyani, Kalyani, India.
- 10.Mou, Q.: Method of Multi-Attribute Decision-Making and Its Application. Guangxi University, Nanning (2004)Google Scholar
- 13.Lee, L.W., Chen, S.M.: A new method for fuzzy multiple attributes group decision-making based on the arithmetic operations of interval type-2 fuzzy sets. In: Proceedings of the 2008 International Conference on Machine Learning and Cybernetics, China, Kunming, pp. 3084–3089 (2008)Google Scholar
- 16.Ross, T.J.: Fuzzy Logic with Engineering Applications. McGraw-Hill, New York (1995)Google Scholar