Safety risk identification and prioritize of forest logging activities using analytic hierarchy process (AHP)

Dam is an important part of the national infrastructure, and its safety has been widely concerned. Risk identification of dams plays a significant role in risk assessment and control. Finding out some critical failure paths through adopting timely measures can help reduce the risk occurrence probability effectively. This paper develops an identification method based on the credibility and the interval analytic hierarchy process (IAHP) methods, namely, consistency and difference-based interval analytic hierarchy process (CDB-IAHP) method, to identify the critical failure paths of dams exactly considering the dynamic cognition degree of decision-makers. Based on the fault tree analysis (FTA) method, the framework and analysis for critical failure paths identification of a gravity dam and an Earth-rockfill dam are conducted and made. The results show that the critical failure paths obtained by the proposed method are in line with the statistical data, and the importance of disaster causing factors has some difference with the traditional method. Additionally, some engineering and nonengineering measures are suggested to reduce the impact of potential failure paths. The applications demonstrate that the proposed method shows good applicability for risk analysis and critical failure path mining of dams.

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Research on Safety Risk Evaluation Model of Bridge Construction Based on Analytic Hierarchy Process

Journal of Physics Conference Series ◽

10.1088/1742-6596/2005/1/012183 ◽

2021 ◽

Vol 2005 (1) ◽

pp. 012183

Author(s):

Changqing Wu ◽

Yu Yan ◽

Sijie Yang ◽

Yuxin Huang ◽

Xueying Ren ◽

...

Keyword(s):

Analytic Hierarchy Process ◽

Risk Evaluation ◽

Evaluation Model ◽

Bridge Construction ◽

Analytic Hierarchy ◽

Safety Risk ◽

Hierarchy Process ◽

Risk Evaluation Model

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Research on Quantification of Airline SMS Security Risk Assessment

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.505-506.990 ◽

2014 ◽

Vol 505-506 ◽

pp. 990-994

Author(s):

Rong Shi ◽

Ming Jie Li

Keyword(s):

Risk Assessment ◽

Analytic Hierarchy Process ◽

Index System ◽

Safety System ◽

Flight Safety ◽

Security Risk ◽

Analytic Hierarchy ◽

Safety Risk ◽

Security Risk Assessment ◽

Hierarchy Process

The work on Airlines security risk assessment at home and abroad is mainly confined to safety evaluation, and the research on security risk assessment is very few. Taking an example of flight safety system of an airline, fuzzy comprehensive evaluation and analytic hierarchy process (AHP) is used to calculate the value of the risk of flight safety system based on risk assessment matrix. Flight safety risk assessment index system is established, and weights of the index system are determined by analytic hierarchy process. The indicators relevant values of risk probability and severity are calculated respectively by using fuzzy evaluation. And ultimately the values of flight safety risk assessment are gotten. Example calculations demonstrate the feasibility, effectiveness and practicality.

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Risk identification and assessment of modular construction utilizing fuzzy analytic hierarchy process (AHP) and simulation

Canadian Journal of Civil Engineering ◽

10.1139/cjce-2013-0013 ◽

2013 ◽

Vol 40 (12) ◽

pp. 1184-1195 ◽

Cited By ~ 50

Author(s):

Hong Xian Li ◽

Mohamed Al-Hussein ◽

Zhen Lei ◽

Ziad Ajweh

Keyword(s):

Risk Factors ◽

Risk Management ◽

Analytic Hierarchy Process ◽

Risk Identification ◽

Fuzzy Analytic Hierarchy Process ◽

Construction Technology ◽

Modular Construction ◽

Analytic Hierarchy ◽

T Distribution ◽

Hierarchy Process

Modular construction brings improved safety and mitigates risks of hazard and injury. However, modular construction technology is also challenged with a degree of uncertainty resulting from such internal and external factors as engineering, occupational, cultural, socio-economic, and financial. Since modular construction is by nature distinct from conventional construction, existing risk management research for onsite construction cannot be directly applied to modular construction. This paper describes research on the risk management associated with modular construction, focusing on: (1) identifying risk factors and (2) assessing the impacts of the identified risk factors on project cost and duration. The primary risk factors associated with modular construction are identified, and fuzzy analytic hierarchy process (AHP) is utilized to rank these factors; simulation techniques are employed to assess the risks of projects. The risk identification and ranking are evaluated by a focus group of experts from the modular construction industry; t-distribution and chi-squared distribution are applied to analyze the results. The case of a project in Edmonton, Canada is presented to illustrate application of the proposed methodology.

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