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Theses and Dissertations

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Articles 91 - 94 of 94

Full-Text Articles in Risk Analysis

Development Of A Cost-Effectiveness Methodology To Prioritize Environmental Mitigation Projects, Robert E. Thompson Sep 1993

Development Of A Cost-Effectiveness Methodology To Prioritize Environmental Mitigation Projects, Robert E. Thompson

Theses and Dissertations

A cost-effectiveness prioritization methodology was developed using concepts from the cost-effectiveness technique. The new methodology called the Cost-Effectiveness methodology (CEM) allows the prioritization of mitigation projects across broad categories of hazardous sites as would be ranked among the offices of the Environmental Protection Agency. Two performance criteria were incorporated into the process--rank projects that save the most lives per dollar and enhance general applicability across different categories of risk. A metric was developed that represents the ratio of lives saved per dollar spent on mitigation alternatives of contaminated environmental sites. This metric was incorporated into the CEM to distinguish mitigation …


Risk Reduction As A Criterion For Measuring Progress Of The Installation Restoration Program, Scott Edwards Jr. Sep 1992

Risk Reduction As A Criterion For Measuring Progress Of The Installation Restoration Program, Scott Edwards Jr.

Theses and Dissertations

To properly manage the Installation Restoration Program (IRP) in the future, the Air Force (AF) needs a method to assess progress based on improvements in environmental conditions. An integral part of evaluating progress toward protecting human health and the environment is the assessment of risk reduction as a result of cleanup actions. The AF currently uses the Defense Priority Model (DPM) to assist in setting priorities for funding remedial actions at IRP sites. The DPM provides a numerical score for IRP sites representing the relative potential risk based on the environmental conditions at a site before remedial actions are taken. …


Risk Identification In Major Weapon Systems Acquisition In The Republic Of China Air Force, Te-Lung Tsai Sep 1992

Risk Identification In Major Weapon Systems Acquisition In The Republic Of China Air Force, Te-Lung Tsai

Theses and Dissertations

This research examined the magnitudes of the performance, supportability, life-cycle cost, schedule, and management risk factors in current Republic of China Air Force (ROCAF) weapon systems acquisition programs and analyzed the risk drivers with respect to those risk factors. Mid-to-high level managers in the ROCAF and Chung-Sun Institute of Science and Technology (CSIST) were surveyed to determine the extent to which various risk factors were contributing to program risk. A total of fifty-four (54) managers responded to the survey. The results indicate: high risks to performance, supportability, life cycle cost, and schedule, and moderate risk to management. Risk-drivers that contributed …


An Investigation Of The Air Force Risk Model, Thomas R. O'Hara Sep 1991

An Investigation Of The Air Force Risk Model, Thomas R. O'Hara

Theses and Dissertations

This study develops a dependent component cost risk model validation methodology and applies it to the Air Force Risk Model. The validation process consists of ensuring that logically consistent input parameters are acted on properly by the cost risk methodology. users of all dependent component risk models must be concerned with logically consistent input parameters. Two criteria define logical consistency. The first is the correlation matrix consistency and the second is the consistency between pairs of cost distributions. Three validation criteria are defined and used to validate a cost risk model. The first criterion is that the process must maintain …