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A Systematic Approach to Accident Scenario Analysis: Child Safety Seat Case Study  

Byun, Seong-Nam (Department of Industrial Engineering, College of Mechanical and Industrial System Engineering, Kyunghee University)
Lee, Dong-Hoon (Center for Advanced Reactor Development, Nuclear Environment Technology Institute, Korea Hydro & Nuclear Power Co.)
Publication Information
IE interfaces / v.15, no.2, 2002 , pp. 114-125 More about this Journal
Abstract
The objective of this paper is to describe a systematic accident scenario analysis method(SASA) adept at creating accident scenarios for the design of safer products. This approach was inspired by the Quality Function Deployment(QFD) method, which is conventionally used in quality management. In this study, the QFD provides a formal and systematic scheme to devise accident scenarios while maintaining objectivity. SASA consists of three key stages to be broken down into a series of consecutive steps:(1) developing an accident analysis tableau,(2) devising the accident scenarios using the accident analysis tableau,(3) performing a feasibility test, a clustering process and a patterning process, and finally(4) performing quantitative evaluation of each accident scenario. The SASA was applied to a case study of child safety seats. The accident analysis tableau devised 2828(maximum) accident scenarios from all possible relationships between the hazard factors and situation characteristics. Among them, 270 scenarios were devised through the feasibility test and the clustering process. The patterning process reduced them to 29 patterns representative of all accident scenarios. Based on an intensive analysis of the accident patterns, design guidelines for a safer child safety seat were recommended. The implications of the study on the child safety seat case were then discussed.
Keywords
accident scenario; child safety seat; accident analysis tableau; product safety;
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