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dc.contributor.advisorNancy G. Leveson.en_US
dc.contributor.authorOta, Shuichiro Danielen_US
dc.contributor.otherMassachusetts Institute of Technology. Dept. of Aeronautics and Astronautics.en_US
dc.date.accessioned2009-04-29T17:16:07Z
dc.date.available2009-04-29T17:16:07Z
dc.date.copyright2008en_US
dc.date.issued2008en_US
dc.identifier.urihttp://hdl.handle.net/1721.1/45258
dc.descriptionThesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2008.en_US
dc.descriptionIncludes bibliographical references (p. 141-145).en_US
dc.description.abstractMagnetic levitation is a railway technology that enables vehicles to be magnetically suspended above their tracks. Although this technology is still under development, magnetically levitated (maglev) systems have great potential to introduce significant changes in today's transportation networks. This thesis proposes an approach to assuring safety in high-speed maglev systems. It examines characteristic features of the systems, and analyzes the Japanese commuter railway accident in 2005, using Systems Theory Accident Modeling and Processes (STAMP) and System Dynamics models. The characteristic features reveal that the likelihood and potential severity of accidents in maglev systems are higher than those in conventional railway systems because of their high speed, levitation technology, software intensiveness, and other factors. A primary lesson learned from the accident is the importance of risk/hazard analysis that can qualitatively focus on the severity of accidents and human factors. These findings are put together in the form of requirements of risk/hazard analysis and organizational structures. This thesis demonstrates that these requirements, which are not entirely consistent with current actual practices based on international railway standards, conform well to the fundamentals of System Safety, which is an organized and established method to assure safety in complex systems.en_US
dc.description.statementofresponsibilityby Shuichiro Daniel Ota.en_US
dc.format.extent145 p.en_US
dc.language.isoengen_US
dc.publisherMassachusetts Institute of Technologyen_US
dc.rightsM.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.en_US
dc.rights.urihttp://dspace.mit.edu/handle/1721.1/7582en_US
dc.subjectAeronautics and Astronautics.en_US
dc.titleAssuring safety in high-speed magnetically levitated (maglev) systems : the need for a system safety approachen_US
dc.typeThesisen_US
dc.description.degreeS.M.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Aeronautics and Astronautics
dc.identifier.oclc310366397en_US


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