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http://dx.doi.org/10.7232/iems.2015.14.3.221

Risk Critical Point (RCP): A Quantifying Safety-Based Method Developed to Screen Construction Safety Risks  

Soltanmohammadi, Mehdi (Project Management and Construction Group, College of Fine Arts, University of Tehran)
Saberi, Morteza (School of Information Science, Curtin University of Technology)
Yoon, Jin Hee (School of Mathematics and Statistics, Sejong University)
Soltanmohammadi, Khatereh (Project Management and Construction Group, Mehralborz University)
Pazhoheshfar, Peiman (Young Researchers and Elite Club, Arak Branch, Islamic Azad University)
Publication Information
Industrial Engineering and Management Systems / v.14, no.3, 2015 , pp. 221-235 More about this Journal
Abstract
Risk assessment is an important phase of risk management. It is the stage in which risk is measured thoroughly to achieve effective management. Some factors such as probability and impact of risk have been used in the literature related to construction projects. Because in high-rise projects safety issues are paramount, this study has tried to develop a quantifying technique that takes into account three factors: probability, impact and Safety Performance Index (SPI) where the SPI is defined as the capability of an appropriate response to reduce or limit the effect of an event after its occurrence with regard to safety pertaining to a project. Regarding risk-related literatures which cover an uncertain subject, the proposed method developed in this research is based on a fuzzy logic approach. This approach entails a questionnaire in which the subjectivity and vagueness of responses is dealt with by using triangular fuzzy numbers instead of linguistic terms. This method returns a Risk Critical Point (RCP) on a zoning chart that places risks under categories: critical, critical-probability, critical-impact, and non-critical. The high-rise project in the execution phase has been taken as a case study to confirm the applicability of the proposed method. The monitoring results showed that the RCP method has the inherent ability to be extended to subsequent applications in the phases of risk response and control.
Keywords
Risk Assessment; Safety Performance Index (SPI); Fuzzy Logic; Risk Critical Point (RCP);
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