Fuzzy Risk Assessment of Metro Station Construction (Case study: Karaj D2 Metro Station)

Subject Areas : HSE Management

Soroush  Salimipour ¹ (PhD of Environment, Department of Environmental Science–Pollution, Faculty of Environment and Energy, Islamic Azad University, Science and Research Branch, Tehran, Iran*. (Corresponding Author))
Seyed Mohammad Reza  Miri Lavasani ² (- Assistant Professor, Department of HSE Management, Graduate School of the Environment and Energy, Science and Research Branch, IAU, Tehran, Iran.)
Saeed  Give chi ³ (Assistant Professor, Department of Environmen, Faculty of Environment Science, University of Tehran, Tehran, Iran)

Received: 2015-02-18 Accepted : 2015-06-02 Published : 2017-08-23

Keywords: Fuzzy Risk Assessment, Analytic Hierarchy Process, Aggregative risk, Metro station construction,

Abstract :

Background and Objective: Growth of urban population contributes to many emerging problems including traffic, disturbances in the transportation system, air pollution and traffic accidents. In order to reduce these problems, it is possible to use rapid transportation systems and clean energy, such as rail transport systems (Metro), which can help to reduce traffic and also reduce air pollution and environmental pollution. On the other hand, with the remarkable development of our country in subway industry and its increasing necessity in large cities, transport systems (metro) have pushed industrialists and manufacturers towards such projects. This increases the number of metro and tunnel construction projects that may result in many incidents. The aim of this study is to investigate the hazards associated with metro station construction projects. Method: In this applied research, an analytical descriptive method is used to investigate the hazards of constructing a metro station. In general, Fuzzy Risk Assessment (FRA) and Analytic Hierarchy Process (AHP) models are used for this purpose. The risk assessment process involves four general stages including: identifying, assessing, responding, and monitoring the risks. Regarding the problem of uncertainty in the field of risk management as well as the lack of information in this field, fuzzy risk assessment method was used and hierarchical analysis was applied to include the importance of component as compared to each other. Findings: After evaluation, the results indicated that the aggregative risk of the project was almost equal to 50%, which confirms very high probability of occurrence and severity of the risks. Also, considering the dimensions of the risks and risk factors studied, it was found that the largest share of this number was related to the implementation of metro station access and the risk of debris falling during drilling. Conclusion: In order to reduce the risks and incidents, these areas should be focused and appropriate preventive and control measures should be considered to ensure greater safety in such projects.

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