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Articles 61 - 76 of 76
Full-Text Articles in Aviation Safety and Security
Identification Of Causal Paths And Prediction Of Runway Incursion Risk Using Bayesian Belief Networks, Benjamin Jeffry Goodheart
Identification Of Causal Paths And Prediction Of Runway Incursion Risk Using Bayesian Belief Networks, Benjamin Jeffry Goodheart
Doctoral Dissertations and Master's Theses
In the U.S. and worldwide, runway incursions are widely acknowledged as a critical concern for aviation safety. However, despite widespread attempts to reduce the frequency of runway incursions, the rate at which these events occur in the U.S. has steadily risen over the past several years. Attempts to analyze runway incursion causation have been made, but these methods are often limited to investigations of discrete events and do not address the dynamic interactions that lead to breaches of runway safety. While the generally static nature of runway incursion research is understandable given that data are often sparsely available, the unmitigated …
The Effects Of Ethical Leadership And Organizational Safety Culture On Safety Outcomes, David Ronald Freiwald
The Effects Of Ethical Leadership And Organizational Safety Culture On Safety Outcomes, David Ronald Freiwald
Doctoral Dissertations and Master's Theses
This dissertation investigated the relationship among ethical leadership, an ethical workplace climate, safety culture, safety behaviors, and measured safety outcomes of workers in the high reliability organizations of aviation and healthcare. The primary objective was to develop a model linking these factors and assess their fit within the model. A secondary objective was to examine differences between the two populations. In this study, a 101-item instrument was used to collect and analyze employee responses on ten factors comprising the model. Structural equation modeling – path analysis was used for testing and evaluating relations using a combination of statistical analysis and …
Analysis Of Fatal General Aviation Accidents Occurring From Loss Of Control On Approach And Landing, Brittnee Nicholle Branham
Analysis Of Fatal General Aviation Accidents Occurring From Loss Of Control On Approach And Landing, Brittnee Nicholle Branham
Doctoral Dissertations and Master's Theses
According to the National Transportation Safety Board (NTSB), loss of control in-flight is the greatest cause of general aviation accidents. The purpose of this study was to determine the most frequently occurring probable causes and contributing factors from loss of control in-flight. This study used the Pareto principle and methodology developed by the General Aviation Joint Steering Committee to analyze accidents retrieved from the NTSB's Aviation Accident Database. The results showed that 73% of the accidents contained the contributing factor of "PILOT - Failure to maintain airspeed" across the three categories of reciprocating engine aircraft, turbine engine aircraft, and experimental-amateur …
A Descriptive Analysis Of Public Comments Submitted In Response To Notice Of Proposed Rules On Air Carrier Pilot Qualification, Amy Chaffee Doolittle
A Descriptive Analysis Of Public Comments Submitted In Response To Notice Of Proposed Rules On Air Carrier Pilot Qualification, Amy Chaffee Doolittle
Doctoral Dissertations and Master's Theses
In 2009, the crash of Colgan Flight 3407 in Buffalo, NY raised concerns regarding the adequacy of current pilot qualification standards for entering air carrier operations. In response, the U.S. Congress enacted Public Law 111-216, which requires a pilot to hold an Airline Transport Pilot (ATP) certificate in order to be qualified as a flight crewmember under 14 CFR, part 121, and also allows the Federal Aviation Administration (FAA) to modify the requirements to obtain an ATP certificate. In February 2012, the FAA issued a Notice of Proposed Rulemaking (NPRM) outlining these requirements and calling for public comments on the …
Validation Of New Technology Using Legacy Metrics: Examination Of Surf-Ia Alerting For Runway Incursion Incidents, Robert Edward Joslin
Validation Of New Technology Using Legacy Metrics: Examination Of Surf-Ia Alerting For Runway Incursion Incidents, Robert Edward Joslin
Doctoral Dissertations and Master's Theses
New flight deck technology designed to mitigate runway incursions may not be effective in triggering a flight deck alert to avoid high speed surface collisions for runway incursions classified as serious by legacy metrics. This study demonstrated an innovative method of utilizing expert raters and actual high-risk incidents to identify shortcomings of using legacy metrics to measure the effectiveness of new technology designed to mitigate hazardous incidents. Expert raters were used to validate the Enhanced Traffic Situational Awareness on the Airport Surface with Indications and Alerts (SURF-IA) model for providing alerts to pilots to reduce the occurrence of pilot deviation …
Relating Air Quality In The Work Environment To Occupational Health Disease, Hussien Awad Alumar
Relating Air Quality In The Work Environment To Occupational Health Disease, Hussien Awad Alumar
Doctoral Dissertations and Master's Theses
Comprehensive knowledge of the air pollutants effects on the human health generally is a crucial requirement in developing effective policies for reducing such adverse effects related to ambient air pollution. Such knowledge would be essential in helping various affected countries, including the less developed countries (LDCs), to develop effective regulatory frameworks for assessing and managing air quality in the workplaces. Developed and developing countries therefore need to develop effective techniques or strategies focused towards improving the workplace monitoring competence in diverse industrial environments. Such initiatives are essential in reducing or eliminating the industrial pollutants within the workplaces while also helping …
Analysis Of The Impact Of Scenario-Based Training On The Aeronautical Decision Making Of Collegiate Flight Students, Mariko Genevieve Doskow
Analysis Of The Impact Of Scenario-Based Training On The Aeronautical Decision Making Of Collegiate Flight Students, Mariko Genevieve Doskow
Doctoral Dissertations and Master's Theses
The persistence of faulty decision making as a primary cause of accidents indicates a need to train pilots to make better decisions. The purpose of this study was to analyze scenario-based training's effectiveness at improving the aeronautical decision making of collegiate flight students. The researcher scored each participant's aeronautical decision making as they completed simulated flights in an advanced aviation training device. The scores quantified the participants' aeronautical decision making on seven decision-making variables and served as the basis for generating an overall decision making score for each participant. The experimental group completed a scenario-based aeronautical decision making treatment between …
The Effect On Embry-Riddle Aeronautical University's Reporting Culture From Implementing An Aviation Safety Action Program, Robert Blake Kelly
The Effect On Embry-Riddle Aeronautical University's Reporting Culture From Implementing An Aviation Safety Action Program, Robert Blake Kelly
Doctoral Dissertations and Master's Theses
The Flight Training Department at Embry-Riddle Aeronautical University, Daytona Beach, has been contemplating implementing an Aviation Safety Action Program (ASAP) in order to help protect students and instructors from certificate action. This feasibility study analyzed what motivated instructor pilots to submit safety reports, and if an ASAP would increase reporting from instructor pilots. It also identified what concerns existed among instructors and managers regarding an ASAP. A survey was given to instructors and managers; also instructors in leadership roles were interviewed. It was found that the benefit to the organization and peers was the highest motivation factor to submit safety …
Spacecraft And Propulsion Technician Error, Daniel Clyde Schultz
Spacecraft And Propulsion Technician Error, Daniel Clyde Schultz
Doctoral Dissertations and Master's Theses
Commercial aviation and commercial space similarly launch, fly, and land passenger vehicles. Unlike aviation, the U.S. government has not established maintenance policies for commercial space. This study conducted a mixed methods review of 610 U.S. space launches from 1984 through 2011, which included 31 failures. An analysis of the failure causal factors showed that human error accounted for 76% of those failures, which included workmanship error accounting for 29% of the failures. With the imminent future of commercial space travel, the increased potential for the loss of human life demands that changes be made to the standardized procedures, training, and …
Integration Of Unmanned Aerial Systems In Class E Airspace: The Effect On Air Traffic Controller Workload, Jeeja S. Vengal
Integration Of Unmanned Aerial Systems In Class E Airspace: The Effect On Air Traffic Controller Workload, Jeeja S. Vengal
Doctoral Dissertations and Master's Theses
As technology rapidly advances and our imagination is no longer fantasy but instead reality, the aviation community needs to concentrate on the harsh truth of airspace safety. In the situation of integrating unmanned aerial systems (UASs) into the National airspace, UASs outside of terminal areas would generally be permitted to fly their preferred routes, and self-separate, with minimal intervention from air traffic control. From an air traffic control perspective, the integration could raise a number of human performance problems including workload extremes and passive-monitoring demands. One fundamental requirement for operation in the National Air Space is to preserve the safety …
An Analysis Of The Effectiveness Of Emergency Locator Transmitters To Reduce Response Time And Locate Wreckage In U.S. General Aviation Accidents, Ajit Jesudoss
Doctoral Dissertations and Master's Theses
Emergency Locator Transmitters (ELT) help search crews to locate aircraft in distress and to rescue survivors. This study analyzed ELT data from U.S. General Aviation accidents during the period 2006 to 2010. This study examined the effectiveness of ELTs in terms of ELT Success Rate (ESR) and False Negative Rate (FNR) based on ELT-Aided. This study found a significant difference between ELT-Operated and ELT-Aided. The ESR was found to be 38.58% whereas the FNR was found to be 61.42 %. The Missing Data Ratio (MDR), where accident reports had no ELT information, was found to be above 95%. Recommendations were …
Analysis Of Airport Security Screening Checkpoints Using Queuing Networks And Discrete Event Simulation: A Theoretical And Empirical Approach, Stephen Louis Dorton
Analysis Of Airport Security Screening Checkpoints Using Queuing Networks And Discrete Event Simulation: A Theoretical And Empirical Approach, Stephen Louis Dorton
Doctoral Dissertations and Master's Theses
This study utilized discrete event simulation (DES) and queuing networks to investigate the effects of baggage volume and alarm rate at the Security Screening Checkpoint (SSCP) of a small origin and destination airport. A Jackson queuing network was considered for a theoretical assessment to SSCP performance. A DES model using Arena version 12 was utilized for an empirical approach. Data was collected from both literature and by manual collection methods. Manual data was collected during the peak operating time of 6am-7am local time at the airport being modeled. The simulation model was verified and validated qualitatively and quantitatively by statistical …
Effects Of Online Training On Aircrew Monitoring Behaviors: A Field Study, Brian A. Potter
Effects Of Online Training On Aircrew Monitoring Behaviors: A Field Study, Brian A. Potter
Doctoral Dissertations and Master's Theses
Data from aircraft accidents and line observation studies indicate that inadequate pilot monitoring is a growing safety concern. In the cockpit environment, pilots who fail to properly manage their workload commit more monitoring errors. Given the lack of training and educational programs available to pilots which emphasize improving their monitoring skills, more research is needed to assess the usefulness of types of training that can be used to improve pilots' monitoring. This research project sets out to determine if the potential exists to enhance pilots' monitoring skills through online training. For this study, 40 military helicopter pilots (participants) were divided …
Nurturing Systems Thinking: Developing A Framework Based On The Human Factors Analysis And Classification System (Hfacs) To Improve Systems Development Processes, Arjun Vijayanarayanan
Nurturing Systems Thinking: Developing A Framework Based On The Human Factors Analysis And Classification System (Hfacs) To Improve Systems Development Processes, Arjun Vijayanarayanan
Doctoral Dissertations and Master's Theses
Large systems engineering projects have an astonishingly high failure rate. The reasons hypothesized for such a high failure rate include the neglect of nonsalient system elements such as social and human or organizational aspects of systems. Social and human factors have long been known to be critical elements of systems that are frequently ignored (e.g., Goguen, 1994). Systems engineering processes can benefit and be improved by effective utilization of a framework that helps developers expand their attention and efforts beyond the salient aspects of the system and the development process. In the aviation field, the Human Factors Analysis and Classification …
The Effect Of Display Design On Pilot Performance In Controlled Flight Into Terrain Scenarios, Jeremy Charles Smith
The Effect Of Display Design On Pilot Performance In Controlled Flight Into Terrain Scenarios, Jeremy Charles Smith
Doctoral Dissertations and Master's Theses
New technologies are being developed to prevent the continuing problem of Controlled Flight into Terrain (CFIT) accidents. One such technology, the Synthetic Vision System, seems to hold the solution. While it is readily adapted to the commercial aviation instrument environment, it may not be intuitive enough for the General Aviation private pilot with minimal instrument training. This experiment attempted to examine how pilots of every experience level use and interpret the depiction of synthetic terrain to recognize and avoid potential CFIT situations. The outcome of CFIT was measured against pilot experience and display condition.
Aviation Safety And Security: A Call For Educating The Flying Public, Mariann Elizabeth Abbonizio
Aviation Safety And Security: A Call For Educating The Flying Public, Mariann Elizabeth Abbonizio
Doctoral Dissertations and Master's Theses
Aviation safety and security: A call for educating the flying public, is an account and testimonial to the problem of the lack of aviation safety and security knowledge by the flying public in the National Airspace System (NAS). It discusses the confusion over both new (post 9-11-01) and old (pre 9-11-01) security regulations as well as basic passenger safety recommendations and advice that could possibly save hundreds of lives. It will discuss the need for a public education campaign regarding aviation safety and security for the American flying public, and point to past public educational campaigns in different realms as …