Human factor issues related to flight deck automation require thorough knowledge of airline pilots’ perceptions of advanced automated aircraft. This understanding is important in designing effective training programmes and developing the standard operating procedures (SOPs) of an airline that are needed to fly these aircraft safely. The purpose of this study was to identify the core components of advanced flight deck automation and to construct a valid and reliable instrument to measure the perceptions of airline pilots with regard to automated flight deck systems on modern commercial jet aircraft. An Automation Attitude Questionnaire, the AAQ, was constructed and distributed to all the pilots employed at a major South African carrier. The subsequent data, received from 262 respondents, was interpreted and then analysed using the SPSS and StatsPac statistical software packages. Exploratory factor analysis indicated that five distinct factors were responsible for a significant portion of the variability in pilots’ perceptions of advanced flight deck automation systems and training on those systems. After analysis, these factors were labelled ‘comprehension’, ‘training’, ‘trust’, ‘workload’ and ‘design’. The results indicated that those pilots who operated mainly Airbus-manufactured aircraft types had a statistically significantly more positive perception of the design of the automation system than those of their counterparts who flew mainly Boeing-manufactured aeroplanes. Co-pilots who operated primarily on the company’s long-range aircraft expressed significantly more positive perceptions of advanced flight deck automation training than the line captains dedicated to long-range flying. It was found that captains flying the company’s short-range aircraft also held a more positive perception of automation training than captains operating long-range aircraft. The biographical variables of age, years of flying experience and total flying hours, appeared to be negatively related to both the comprehension and training dimensions of advanced flight deck automation. However, the mere opportunity to fly these advanced automated aircraft seemed to affect pilots’ perceptions of these systems more positively than negatively. Finally, the overall responses of the majority of participants in this study were very positive with regard to the five core factors related to perceptions of advanced flight deck automation. It is suggested that future studies of this nature should incorporate a larger sample consisting of cross-cultural carriers in the global industry. This will confirm the external validity of the present study and support the transfer of findings to other airline pilot populations. / Dissertation (MPhil)--University of Pretoria, 2009. / Human Resource Management / unrestricted

Flight decks of the future are being enhanced through improved avionics that adapt to both aircraft and operator state. Eye tracking allows for non-invasive analysis of pilot eye movements, from which a set of metrics can be derived to effectively and reliably characterize workload, this research will generate quantitative algorithms to classify pilot state through eye tracking metrics. Through various metrics within the realm of eye tracking, flight deck operation research is used to determine metric correlations between a pilot's workload and eye tracking metric patterns. The basic metrics within eye tracking, such as saccadic movement, fixations and link analysis provide clear measurable elements that experimenters analyzed to create a quantitative algorithm that reliably classifies operator workload. The study conducted at the University of Iowa's Operator Performance Lab 737-800 simulator was outfit with a Smarteye remote eye-tracking system that yielded gaze vector resolution down to 1 degree across the flight deck. Three levels of automation and 2 levels of outside visual conditions were changed on a KORD ILS approach between CAT II and CAT III visual conditions, and varying from full autopilot controlled by the pre-programmed flight management system, flight director guidance, and full manual approach with localizer and glide slope guidance. Initial subjective results indicated a successful variation in driving pilot workload across all 12 IFR pilots that were run through the 7 run testing sequence.

Situation Awareness (SA) is the aviation term for the construct describing how actors extract meaning and make sense of their dynamically changing environment. Within the aviation domain, it is broadly acknowledged that SA plays a crucial role for pilots in coping with hazardous situations and its loss is cited as a significant factor in aircraft accidents and incidents. A broad range of psychologically based theories has been applied to conceptualise SA. The aim of this research thesis is to develop an alternative, sociologically based approach, largely drawn from Erving Goffman??s (1974) Frame Analysis, and assess whether it can be used to effectively describe, analyse and discuss SA. An open observation method was used to collect data in the flight deck during ten commercial international flight sectors conducted in an advanced wide-body aircraft. A running narrative of flight activity and associated context was recorded from a purposeful sample of flights operated by consenting flight crews. Data was managed in the NVIVO?? qualitative software analysis program. Strips of activity associated with the establishment or maintenance of SA were identified and examined in accordance with key concepts derived from frame analysis. The results show that key concepts drawn from Goffman??s (1974) frame analysis are able to be applied to the coding and discussion of data. Several emergent themes describe distinct SA behaviours relating to frame establishment and maintenance. These behaviours include; frame confirming, questioning, seeking, setting, proposing, clearing, accepting, reviewing and anticipating. Some unique modifications are made to Goffman??s underlying concepts in order to address specific contextual issues emergent in flight deck operations. SA is supported as a meaningful construct in the aviation domain. This thesis establishes that Goffman??s (1974) general theory of frame analysis supports the major underlying concepts of the specific SA construct. Additionally, a method derived from frame analysis is used to examine and analyse the observed intersubjective SA processes. This analysis also develops several unique perspectives concerning flight crew task performance that have wide ranging implications in procedural design, training and airspace integration. Lastly, practitioner based notions of SA are shown to be equivalent to that of ??frame.??

Situation Awareness (SA) is the aviation term for the construct describing how actors extract meaning and make sense of their dynamically changing environment. Within the aviation domain, it is broadly acknowledged that SA plays a crucial role for pilots in coping with hazardous situations and its loss is cited as a significant factor in aircraft accidents and incidents. A broad range of psychologically based theories has been applied to conceptualise SA. The aim of this research thesis is to develop an alternative, sociologically based approach, largely drawn from Erving Goffman??s (1974) Frame Analysis, and assess whether it can be used to effectively describe, analyse and discuss SA. An open observation method was used to collect data in the flight deck during ten commercial international flight sectors conducted in an advanced wide-body aircraft. A running narrative of flight activity and associated context was recorded from a purposeful sample of flights operated by consenting flight crews. Data was managed in the NVIVO?? qualitative software analysis program. Strips of activity associated with the establishment or maintenance of SA were identified and examined in accordance with key concepts derived from frame analysis. The results show that key concepts drawn from Goffman??s (1974) frame analysis are able to be applied to the coding and discussion of data. Several emergent themes describe distinct SA behaviours relating to frame establishment and maintenance. These behaviours include; frame confirming, questioning, seeking, setting, proposing, clearing, accepting, reviewing and anticipating. Some unique modifications are made to Goffman??s underlying concepts in order to address specific contextual issues emergent in flight deck operations. SA is supported as a meaningful construct in the aviation domain. This thesis establishes that Goffman??s (1974) general theory of frame analysis supports the major underlying concepts of the specific SA construct. Additionally, a method derived from frame analysis is used to examine and analyse the observed intersubjective SA processes. This analysis also develops several unique perspectives concerning flight crew task performance that have wide ranging implications in procedural design, training and airspace integration. Lastly, practitioner based notions of SA are shown to be equivalent to that of ??frame.??

There are many pieces of flight deck research on general use of written English language technical information and problem solving using technical documentation. Contributory causes of aircraft accidents have been due to misunderstandings of crew alerts and procedural divergence by English as-a-second language flight crewmembers (ESL). Research was conducted to understand impact of written English language technical information on ESL flight crewmembers’ performance. Two types of systems were evaluated, technical documentation and crew alerting systems that contain technical information, with respect to their impact on ESL flight crewmember performance. Preliminary analysis results indicated written English language technical information can be confusing, difficult to read and interpret, and leads to misunderstandings by ESL flight crewmembers during aircraft nonnormal conditions. English as-a-second language flight crewmembers indicated they often experience problems executing written English language technical procedures after outset of crew alerts. Conversely, experimental trials revealed ESL flight crewmembers did not experience many cognitive performance issues with use of crew alerting systems and technical information designed with an English language emphasis. English as-a second language flight crewmembers’ English language proficiency, background knowledge, and use of use of metacognitive strategies to read and comprehend written English language on crew alerting and information systems, indicated they utilized written English technical information with ease. Particularly, ESL flight crewmembers’ workload was low, they had fast response times to system faults, and they experienced minimal procedural deviations. On the contrary, when ESL flight crewmembers utilized written English language technical procedures translated into their native language during non-normal conditions, they experienced several cognitive performance challenges. English as-a second language flight crewmembers’ background knowledge of written English language technical information translated into their native language, use of metacognitive strategies to read and comprehend written English language translated into their native language, indicated they experienced difficulties with reading and comprehending translated technical information on information systems. Particularly, ESL flight crewmembers were challenged cognitively when they responded to crew alerts through execution of decision-making processes. They indicated translation of written English language technical information into their native language was a pre-cursor to procedural deviation, long response times to system issues, as well as high workload during experimental trials. It is recommended that further research focus on design and use of written English language technical documentation by ESL flight crewmembers during non-normal conditions. It is also recommended that if deemed practical by the aviation industry, further research should focus on design, integration, and utilization of technical documentation in a language(s) other than English, and measurement of ESL flight crewmembers performance on the flight deck.

There are many pieces of flight deck research on general use of written English language technical information and problem solving using technical documentation. Contributory causes of aircraft accidents have been due to misunderstandings of crew alerts and procedural divergence by English as-a-second language flight crewmembers (ESL). Research was conducted to understand impact of written English language technical information on ESL flight crewmembers’ performance. Two types of systems were evaluated, technical documentation and crew alerting systems that contain technical information, with respect to their impact on ESL flight crewmember performance. Preliminary analysis results indicated written English language technical information can be confusing, difficult to read and interpret, and leads to misunderstandings by ESL flight crewmembers during aircraft nonnormal conditions. English as-a-second language flight crewmembers indicated they often experience problems executing written English language technical procedures after outset of crew alerts. Conversely, experimental trials revealed ESL flight crewmembers did not experience many cognitive performance issues with use of crew alerting systems and technical information designed with an English language emphasis. English as-a second language flight crewmembers’ English language proficiency, background knowledge, and use of use of metacognitive strategies to read and comprehend written English language on crew alerting and information systems, indicated they utilized written English technical information with ease. Particularly, ESL flight crewmembers’ workload was low, they had fast response times to system faults, and they experienced minimal procedural deviations. On the contrary, when ESL flight crewmembers utilized written English language technical procedures translated into their native language during non-normal conditions, they experienced several cognitive performance challenges. English as-a second language flight crewmembers’ background knowledge of written English language technical information translated into their native language, use of metacognitive strategies to read and comprehend written English language translated into their native language, indicated they experienced difficulties with reading and comprehending translated technical information on information systems. Particularly, ESL flight crewmembers were challenged cognitively when they responded to crew alerts through execution of decision-making processes. They indicated translation of written English language technical information into their native language was a pre-cursor to procedural deviation, long response times to system issues, as well as high workload during experimental trials. It is recommended that further research focus on design and use of written English language technical documentation by ESL flight crewmembers during non-normal conditions. It is also recommended that if deemed practical by the aviation industry, further research should focus on design, integration, and utilization of technical documentation in a language(s) other than English, and measurement of ESL flight crewmembers performance on the flight deck.

Function allocation is the design decision which assigns work functions to all agents in a team, both human and automated. Efforts to guide function allocation systematically has been studied in many fields such as engineering, human factors, team and organization design, management science, and cognitive systems engineering. Each field focuses on certain aspects of function allocation, but not all; thus, an independent discussion of each does not address all necessary issues with function allocation. Four distinctive perspectives emerged from a review of these fields: technology-centered, human-centered, team-oriented, and work-oriented. Each perspective focuses on different aspects of function allocation: capabilities and characteristics of agents (automation or human), team structure and processes, and work structure and the work environment. Together, these perspectives identify the following eight issues with function allocation: 1)Workload, 2)Incoherency in function allocations, 3)Mismatches between responsibility and authority, 4)Interruptive automation, 5)Automation boundary conditions, 6)Function allocation preventing human adaptation to context, 7)Function allocation destabilizing the humans' work environment, and 8)Mission Performance. Addressing these issues systematically requires formal models and simulations that include all necessary aspects of human-automation function allocation: the work environment, the dynamics inherent to the work, agents, and relationships among them. Also, addressing these issues requires not only a (static) model, but also a (dynamic) simulation that captures temporal aspects of work such as the timing of actions and their impact on the agent's work. Therefore, with properly modeled work as described by the work environment, the dynamics inherent to the work, agents, and relationships among them, a modeling framework developed by this thesis, which includes static work models and dynamic simulation, can capture the issues with function allocation. Then, based on the eight issues, eight types of metrics are established. The purpose of these metrics is to assess the extent to which each issue exists with a given function allocation. Specifically, the eight types of metrics assess workload, coherency of a function allocation, mismatches between responsibility and authority, interruptive automation, automation boundary conditions, human adaptation to context, stability of the human's work environment, and mission performance. Finally, to validate the modeling framework and the metrics, a case study was conducted modeling four different function allocations between a pilot and flight deck automation during the arrival and approach phases of flight. A range of pilot cognitive control modes and maximum human taskload limits were also included in the model. The metrics were assessed for these four function allocations and analyzed to validate capability of the metrics to identify important issues in given function allocations. In addition, the design insights provided by the metrics are highlighted This thesis concludes with a discussion of mechanisms for further validating the modeling framework and function allocation metrics developed here, and highlights where these developments can be applied in research and in the design of function allocations in complex work environments such as aviation operations.

No description available.

In the aviation industry, digitally produced and presented flight, navigation, and aircraft information is commonly referred to as glass flight decks. Glass flight decks are driven by computer-based subsystems and have long been a part of military and commercial aviation sectors. Over the past 15 years, the General Aviation (GA) sector of the aviation industry has become a recent beneficiary of the rapid advancement of computer-based glass flight deck (GFD) systems. While providing the GA pilot considerable enhancements in the quality of information about the status and operations of the aircraft, training pilots on the use of glass flight decks is often delivered with traditional methods (e.g. textbooks, PowerPoint presentations, user manuals, and limited computer-based training modules). These training methods have been reported as less than desirable in learning to use the glass flight deck interface. Difficulties in achieving a complete understanding of functional and operational characteristics of the GFD systems, acquiring a full understanding of the interrelationships of the varied subsystems, and handling the wealth of flight information provided have been reported. Documented pilot concerns of poor user experience and satisfaction, and problems with the learning the complex and sophisticated interface of the GFD are additional issues with current pilot training approaches. A case study was executed to explore ways to improve training using GFD systems at a Midwestern aviation university. The researcher investigated if variations in instructional systems design and training methods for learning glass flight deck technology would affect the perceptions and attitudes of pilots of the learnability (an attribute of usability) of the glass flight deck interface. Specifically, this study investigated the effectiveness of scenario-based training (SBT) methods to potentially improve pilot knowledge and understanding of a GFD system, and overall pilot user experience and satisfaction. Participants overwhelmingly reported positive learning experiences from scenario-based GFD systems flight training, noting that learning and knowledge construction were improved over other training received in the past. In contrast, participants rated the usability and learnability of the GFD training systems low, reporting various problems with the systems’ interface, and the learnability (first-time use) of the complex GFD system. However, issues with usability of the GFD training systems did not reduce or change participant attitudes towards learning and mastering GFD systems; to the contrary, all participants requested additional coursework opportunities to train on GFD systems with the scenario-based flight training format.