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Using Qualitative Hazard Analysis to Guide Quantitative Safety AnalysisQuantitative methods can be beneficial in many types of safety investigations. However, there are many difficulties in using quantitative m ethods. Far example, there may be little relevant data available. This paper proposes a framework for using quantitative hazard analysis to prioritize hazard scenarios most suitable for quantitative mziysis. The framework first categorizes hazard scenarios by severity and likelihood. We then propose another metric "modeling difficulty" that desc ribes the complexity in modeling a given hazard scenario quantitatively. The combined metrics of severity, likelihood, and modeling difficu lty help to prioritize hazard scenarios for which quantitative analys is should be applied. We have applied this methodology to proposed concepts of operations for reduced wake separation for airplane operatio ns at closely spaced parallel runways.
Document ID
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Shortle, J. F.
(George Mason Univ. Fairfax, VA, United States)
Allocco, M.
(Federal Aviation Administration United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2005
Publication Information
Publication: Proceedings of the 23rd International System Safety Conference
Subject Category
Air Transportation And Safety
Funding Number(s)
Distribution Limits

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