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Improved Human Factors Research Coordination, but Stronger Leadership 
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Report to the Committee on Science and Technology, House of 
Representatives: 

United States Government Accountability Office: 
GAO: 

August 2010: 

Next Generation Air Transportation System: 

FAA and NASA Have Improved Human Factors Research Coordination, but 
Stronger Leadership Needed: 

GAO-10-824: 

GAO Highlights: 

Highlights of GAO-10-824, a report to the Committee on Science and 
Technology, House of Representatives. 

Why GAO Did This Study: 

To address challenges to the aviation industry’s economic health and 
safety, the Federal Aviation Administration (FAA) is collaborating 
with the National Aeronautics and Space Administration (NASA) and 
other federal partners to plan and implement the Next Generation Air 
Transportation System (NextGen). NextGen will transform the current 
radar-based air traffic control system into a satellite-based system. 
Pilot and air traffic controller roles and responsibilities are 
expected to become more automated, thereby requiring an understanding 
of human factors, which studies how humans’ abilities, 
characteristics, and limitations interact with the design of the 
equipment they use, environments in which they function, and jobs they 
perform. FAA and NASA are tasked with incorporating human factors 
issues into NextGen. 

As requested, this report discusses the extent to which FAA’s and 
NASA’s human factors research (1) is coordinated and (2) supports 
NextGen. To address these issues, GAO reviewed coordination mechanisms 
and planning documents and synthesized the views of nine aviation 
human factors experts. 

What GAO Found: 

While FAA and NASA officials are coordinating their NextGen human 
factors research efforts in a variety of ways, they lack a cross-
agency human factors plan for coordination. FAA and NASA have 
participated in research advisory committees and interagency research 
transition teams, signed interagency agreements, and held cross-agency 
meetings and conferences focused on human factors issues. FAA also 
created a human factors portfolio to identify and address priority 
human factors issues but not a cross-agency human factors coordination 
research plan in cooperation with NASA, as previously recommended by 
FAA’s Joint Planning and Development Office (JPDO)--an interagency 
organization responsible for planning NextGen. As a result, FAA has 
not established an agreed-upon set of initial focus areas for research 
that identifies and capitalizes on past and current research and 
establishes focus areas for human factors research and development, 
among other things. 

The experts GAO contacted generally agreed that FAA’s and NASA’s human 
factors research efforts adequately support NextGen, but made several 
suggestions, including enhancing human factors research leadership, 
for further incorporating human factors issues into NextGen systems. 
FAA and NASA have undertaken a variety of human factors efforts to 
support NextGen, including, among other things, creating planning 
documents detailing how human factors research will be incorporated 
into NextGen and dedicating financial resources specifically to 
NextGen human factors research. While the human factors experts GAO 
interviewed stated that these efforts support NextGen, a majority 
offered the following suggestions for further integrating human 
factors issues into NextGen: 

* Better ensure that human factors issues are fully integrated 
throughout the development of NextGen systems. FAA did not do this in 
the development of past systems, a fact that led to schedule slippages 
and cost increases. 

* Improve collaboration of human factors efforts within FAA 
departments. 

* Establish strong leadership. A 2008 National Academy of Public 
Administration’s report identified leadership as the single most 
important element of success for large-scale systems integration 
efforts like NextGen. FAA has not prioritized consistently staffing 
the top two human factors positions. Specifically, the position of the 
Chief Systems Engineer for Human Factors (now referred to as the human 
factors integration lead) has been vacant since January 2010. 
Moreover, FAA did not have a permanent program director of its Human 
Factors Research and Engineering Group from January 2009 until June 
2010. These two positions currently lack the authority to ensure that 
human factors issues are addressed early and throughout the NextGen 
system development process to prevent the need to redesign these 
systems after implementation, which can cause delays and add costs. As 
a result, FAA may lack consistent leadership with the sufficient 
authority to not only prioritize human factors issues but ensure that 
human factors issues are addressed throughout NextGen. 

What GAO Recommends: 

FAA should (1) create a coordination plan and (2) give priority to 
filling vacant leadership positions and provide the positions with 
authority for prioritizing human factors. FAA agreed to consider the 
recommendations. 

View [hyperlink, http://www.gao.gov/products/GAO-10-824] or key 
components. For more information, contact Gerald L. Dillingham at 
(202) 512-2834 or dillinghamg@gao.gov. 

[End of section] 

Contents: 

Letter: 

Background: 

Although FAA and NASA Are Generally Coordinating Their Human Factors 
R&D, Key Areas Could Benefit from Increased Attention: 

FAA and NASA Have Several Ongoing Human Factors R&D Efforts That 
Support NextGen, but a Majority of Experts Suggest FAA and NASA Adopt 
Additional Measures, Including Strengthening Human Factors Leadership: 

Conclusions: 

Recommendations for Executive Action: 

Agency Comments: 

Appendix I: Scope and Methodology: 

Appendix II: GAO Contact and Staff Acknowledgments: 

Table: 

Table 1: Experts Providing Responses: 

Figures: 

Figure 1: FAA and NASA Funding for Human Factors R&D, Fiscal Years 
2004-2009: 

Figure 2: FAA and Human Factors Research, Engineering, and Development 
Funding, Fiscal Years 2004-2009: 

Figure 3: Key FAA and NASA Organizations Involved in Human Factors 
Activities: 

Abbreviations: 

ATOP: Advanced Technologies and Oceanic Procedures: 

DOD: Department of Defense: 

DOT: Department of Transportation: 

ERAM: En Route Automation Modernization: 

FAA: Federal Aviation Administration: 

HFREG: Human Factors Research and Engineering Group: 

JDPO: Joint Planning and Development Office: 

NASA: National Aeronautics and Space Administration: 

NATCA: National Air Traffic Controllers Association: 

NGII: NextGen Integration and Implementation: 

R&D: research and development: 

REDAC: Research, Engineering, and Development Advisory Committee: 

[End of section] 

United States Government Accountability Office: 
Washington, DC 20548: 

August 6, 2010: 

The Honorable Bart Gordon: 
Chairman: 
The Honorable Ralph Hall: 
Ranking Member: 
Committee on Science and Technology: 
House of Representatives: 

The aviation industry is critical to the nation's economic health and 
safety, accounting for over $1 trillion in economic activity annually 
and handling about 50,000 flights per day while also maintaining a 
high level of safety. The Department of Transportation's (DOT) Federal 
Aviation Administration (FAA) and the aviation industry, however, face 
several challenges to the industry's economic health and safety, 
including increases in demand and congestion. To meet these 
challenges, FAA is taking the lead in transforming the current air 
traffic control system to a new system--the Next Generation Air 
Transportation System (NextGen). Whereas the current system is radar-
based, NextGen is a more automated, aircraft-centric, satellite-based 
system. FAA is charged with implementing NextGen by 2025 with the 
cooperation and collaboration of the National Aeronautics and Space 
Administration (NASA) and other federal partners.[Footnote 1] 

Under NextGen, pilots and air traffic controllers will rely to a 
greater extent on automation, changing their roles and 
responsibilities in ways that will require a full understanding of 
what are known as human factors issues. Human factors research and 
development (R&D) studies how humans' abilities, characteristics, and 
limitations interact with the design of the equipment they use, the 
environments in which they function, and the jobs they perform. FAA 
and NASA--the primary agencies responsible for integrating human 
factors issues into NextGen--must ensure that NextGen explores human 
factors issues so that controllers, pilots, and others will operate 
NextGen components in a safe and efficient manner. Without adequate 
consideration of human factors issues, the implementation of NextGen 
could be delayed. 

You requested that we study FAA's and NASA's efforts with regard to 
human factors related to NextGen. This report provides information on 
the extent to which (1) FAA's and NASA's human factors R&D efforts are 
coordinated and (2) FAA's and NASA's human factors R&D efforts support 
NextGen. To provide information on human factors R&D coordination, we 
obtained and analyzed information provided by FAA and NASA officials 
on mechanisms in place to coordinate human factors R&D. We assessed 
these coordination efforts by comparing them with recommendations 
issued by FAA's Joint Planning and Development Office (JPDO)--an 
interagency organization responsible for long-term NextGen planning 
efforts. We also obtained information from nine aviation human factors 
experts who reviewed and assessed FAA's and NASA's process for 
coordinating their human factors R&D. All the experts have been 
involved in aviation human factors R&D specifically directed at 
NextGen systems.[Footnote 2] To provide information on the extent to 
which the human factors efforts support NextGen, we reviewed relevant 
planning documents from FAA and NASA and asked FAA and NASA officials 
in interviews to describe their human factors R&D efforts in detail. 
We provided these planning documents and information from the 
interviews to the nine aviation human factors experts, as well as 
representatives from three aviation industry associations, and 
obtained and synthesized their views regarding the extent to which 
FAA's and NASA's human factors R&D efforts support NextGen. In 
addition, we obtained views from officials representing the Aerospace 
Industries Association, Air Transport Association, Air Line Pilots 
Association, MITRE Corporation,[Footnote 3] National Air Traffic 
Controller Association, Volpe National Transportation Systems Center, 
[Footnote 4] JPDO, and the Boeing Corporation. 

We performed our work from August 2009 to August 2010 in accordance 
with generally accepted government auditing standards. Those standards 
require that we plan and perform the audit to obtain sufficient and 
appropriate evidence to provide a reasonable basis for our findings 
and conclusions based on our audit objectives. We believe that the 
evidence obtained provides a reasonable basis for our findings and 
conclusions based on our audit objectives. 

Background: 

Human factors is a discipline concerned with, among other things, 
designing products that are efficient for people to use. As such, 
human factors combines features of many disciplines, including 
psychology, engineering, anthropology, sociology, and linguistics. 
Human factors R&D focuses on people as they interact with the design 
of products. The goal of human factors is to minimize the potential 
for design-induced error by ensuring that the equipment is suitable 
for the users and their environment. The human factors discipline can 
be described as having two components: human factors research, which 
seeks to acquire information, and human factors engineering, which 
seeks to apply the information gained from research to equipment, 
systems, software, and training, among other things. 

Recognizing the importance of human factors considerations, FAA issued 
a Human Factors Policy Order in 1993 that requires human factors 
issues to be integrated into the planning and execution of all FAA 
activities associated with system acquisitions and operations. 
[Footnote 5] FAA offers several guidance documents on implementing 
human factors considerations, which, FAA officials told us, helped 
aviation stakeholders, such as contractors and research institutions, 
meet the requirement. For example, officials with the MITRE 
Corporation told us that--in collaboration with FAA, airlines, and 
others--they researched human factors issues in the development of the 
Automatic Dependent Surveillance-Broadcast System, which is an 
information-reporting technology that, when used in conjunction with 
other navigation technologies, is expected to enable more precise 
information about aircraft position. MITRE collected human factors 
data on how pilots use the broadcast system, collaborated with human 
factors engineers, and asked human factors personnel to observe 
pilots' in-flight interaction with the system while it was being 
tested. 

FAA has several offices that are tasked with ensuring that FAA 
programs integrate human factors issues. FAA's Human Factors Research 
and Engineering Group (HFREG) is responsible for conducting the human 
factors R&D for NextGen, with the program director serving as the 
principal advisor to the FAA Administrator on human factors issues. 
HFREG is divided into three R&D areas: (1) Flight Deck/Aviation 
Maintenance/System Integration, which develops human performance 
information that the agency uses in fulfilling its regulatory 
responsibility and provides to the aviation industry for use in 
designing and operating aircraft and training pilots and maintenance 
personnel; (2) Air Traffic Control/Technical Operations, which 
researches human factors issues with respect to the roles of air 
traffic controllers, air traffic managers, and maintenance 
technicians; and (3) general Human Factors Research and Engineering, 
which attempts to ensure that the incorporation of human factors 
engineering is explicit, timely, systematic, comprehensive, efficient, 
and effective. In fiscal year 2009, HFREG conducted dozens of R&D 
activities including the following: 

* Mitigating fatigue in flight operations. Collecting data on fatigue 
variables (such as sleep patterns, alertness, and mood) to develop 
better fatigue-mitigating duty and rest schedules, and outline limits 
of acceptable performance and flight safety. 

* Improving pilots' visual approaches through perceptual training. 
Investigating the skills pilots need in order to effectively conduct a 
visual approach,[Footnote 6] and developing training and performance 
metrics that will improve training and evaluation of pilots on visual 
approach tasks. 

* Assessing safety risks. Calculating the safety risks of an error 
occurring in relation to the amount of time a controller spends on a 
task. 

In addition, FAA has assigned human factors experts to several offices 
involved in the development of new systems and in the oversight of 
aircraft operation and maintenance in order to ensure that human 
factors issues are addressed. FAA has established chief systems 
engineers to focus on agencywide, cross-cutting technical and 
operational issues pertaining to NextGen. Because of the scope of 
NextGen, FAA contracted with Volpe to provide a chief system engineer 
for human factors to identify and help the agency better ensure that 
human factors issues are integrated into the development of NextGen 
aviation systems. As a result of the observations and recommendations 
of that Volpe expert, FAA has designated a new position for human 
factors integration lead and assigned that position to FAA's System 
Engineering and Safety organization. 

NASA has two units primarily responsible for ensuring human factors 
consideration in aviation: the Airspace Systems Program and the 
Aviation Safety Program, both within its Aeronautics Research Mission 
Directorate. The Airspace Systems Program is the unit chiefly 
responsible for NASA's input into NextGen. The primary research role 
for the Airspace Systems Program is to contribute to the operations of 
the airspace system by developing concepts, capabilities, and 
technologies for high-capacity, efficient, and safe airspace systems. 
The Aviation Safety Program is dedicated to improving the safety of 
current and future aircraft operating in the national airspace system. 
The research focus is on the way aircraft are designed, built, 
operated, and maintained. Scientists and engineers in this program 
develop concepts and tools to address aircraft aging and durability, 
among other areas. 

FAA and NASA have each invested about $121 million in human factors 
R&D from fiscal year 2004 to fiscal year 2009 (see figure 1).[Footnote 
7] Starting in fiscal year 2005, NASA adjusted the size of its human 
factors research staff by reassigning some staff to other programs and 
reducing the contractor and academic technical support for human 
factors R&D. NASA reorganized its aeronautical research plan to focus 
on what it calls "fundamental research," which takes a technology to a 
point where it can be further matured by manufacturers and eventually 
integrated into new aircraft or engine designs. FAA's investment in 
human factors R&D is increasing, along with additional appropriations 
for overall research development, though overall R&D appears to be 
increasing at a higher rate (see figure 2). NASA takes the lead in 
both identifying human factors concepts that need to be implemented to 
support a particular technology or system and developing the human 
factors engineering models and algorithms. NASA then works with FAA on 
testing the new concept and hands off the responsibility to FAA to 
make the concept operational. NASA officials told us that it generally 
takes a concept 5 to 7 years to become operational after NASA 
transfers responsibility to FAA. Furthermore, in June 2010, NASA 
officials informed us of a new Integrated Systems Research Program 
that is to focus on maturing and integrating NextGen technologies into 
operational systems. The program began in fiscal year 2010 at a 
funding level of $62.4 million. 

Figure 1: FAA and NASA Funding for Human Factors R&D, Fiscal Years 
2004-2009: 

[Refer to PDF for image: multiple line graph] 

Fiscal year: 2004; 
FAA: $17 million; 
NASA: $20 million. 

Fiscal year: 2005; 
FAA: $21 million; 
NASA: $18 million. 

Fiscal year: 2006; 
FAA: $18 million; 
NASA: $20 million. 

Fiscal year: 2007; 
FAA: $18 million; 
NASA: $27 million. 

Fiscal year: 2008; 
FAA: $19 million; 
NASA: $19 million. 

Fiscal year: 2009; 
FAA: $29 million; 
NASA: $19 million. 

Source: GAO analysis of FAA and NASA data. 

Note: FAA subsequently informed us that for fiscal year 2009 it 
invested $10 million for human factors related to another budget line 
item. 

[End of figure] 

Figure 2: FAA and Human Factors Research, Engineering, and Development 
Funding, Fiscal Years 2004-2009: 

[Refer to PDF for image: multiple line graph] 

Fiscal year: 2004; 
FAA research, engineering, and development funding: $118 million; 
FAA human factors research and development funding: $17 million. 

Fiscal year: 2005; 
FAA research, engineering, and development funding: $130 million; 
FAA human factors research and development funding: $21 million. 

Fiscal year: 2006; 
FAA research, engineering, and development funding: $137 million; 
FAA human factors research and development funding: $18 million. 

Fiscal year: 2007; 
FAA research, engineering, and development funding: $130 million; 
FAA human factors research and development funding: $18 million. 

Fiscal year: 2008; 
FAA research, engineering, and development funding: $147 million; 
FAA human factors research and development funding: $19 million. 

Fiscal year: 2009; 
FAA research, engineering, and development funding: $170 million; 
FAA human factors research and development funding: $29 million. 

Source: GAO analysis of FAA and NASA data. 

Note: As previously cited, FAA subsequently informed us that for 
fiscal year 2009 it invested $10 million for human factors related to 
another budget line item. 

[End of figure] 

NextGen is a major transformation of the aviation system that will 
have significant implications for human factors considerations. 
NextGen will transform aviation procedures and the design of the 
aviation system and introduce new technologies that pose dramatic 
changes to the roles and responsibilities of both air traffic 
controllers and pilots and change the way they interface with their 
systems. According to FAA, under NextGen, a satellite-based system 
would guide all phases of a flight, including climb, cruise, descent, 
and taxi. Instead of monitoring aircraft movements using ground-based 
radar and transmitting voice flight instructions to aircraft, air 
traffic controllers would primarily monitor automated systems and 
intervene when anomalies and emergencies occur. As a result, FAA and 
NASA need to research the human factors considerations associated with 
the new roles of both flight crew and air traffic management staff, 
and incorporate the results into the implementation of the new system. 
In addition, FAA and NASA will have to identify and develop the 
training necessary for these changing roles, including the time frame 
before NextGen is fully realized, when some aircraft will be equipped 
with NextGen systems and others will not. 

FAA and NASA structure their NextGen human factors R&D according to a 
planned three-phase implementation of the NextGen system to align and 
prevent duplication of NextGen R&D efforts. FAA--which is ultimately 
in charge of implementing NextGen--is mainly responsible for the R&D 
to help address near-term implementation (2009-2013), which addresses 
the day-to-day promotion of the safe and efficient operation of the 
current aviation system and the implementation of some NextGen 
systems, and midterm implementation (2012-2018), which consists of 
leveraging existing aircraft capabilities and introducing new aircraft 
capabilities to establish a foundation for a longer-term evolution of 
the aviation system. Within FAA, the Air Traffic Organization is 
responsible for implementing near-and midterm improvements in 
coordination with other FAA lines of business. Within the Air Traffic 
Organization, several offices have different roles in the development 
of NextGen. For example, within the NextGen and Operations Planning 
Office, the NextGen Integration and Implementation (NGII) office is 
tasked with monitoring the progress of NextGen development and 
implementation and facilitating necessary coordination. These offices 
are also responsible for ensuring that human factors R&D conducted by 
HFREG is integrated into NextGen. NASA is responsible for conducting 
research to help address far-term implementation (2018-2025). As 
researchers better define system concepts, NASA officials inform FAA 
officials about research results and FAA officials then use the 
results to further develop the system. Figure 3 shows the key FAA and 
NASA organizations involved in human factors activities. 

Figure 3: Key FAA and NASA Organizations Involved in Human Factors 
Activities: 

[Refer to PDF for image: 2 organization charts] 

FAA: 

Top level: 
* Air Traffic Organization; 
* Joint Planning Development Office. 

Second level, reporting to Air Traffic Organization: 
* NextGen and Operations Planning. 

Third level, reporting to NextGen and Operations Planning: 
* NextGen Integration and Implementation; 
* Research and Technology Development: 
- Human Factors Research and Engineering Group; 
* System Engineering and Safety: 
- Chief Systems for Human Factors Engineer. 

NASA: 

Top level: 
Aeronautics Research Mission Directorate. 

Second level, reporting to Aeronautics Research Mission Directorate: 
* Airspace System Program; 
* Aviation Safety Program. 

Sources: FAA and NASA. 

Note: FAA also has human factors experts in other units, including 
experts in the Air Traffic Organization and Aviation Safety. 

[End of figure] 

Although FAA and NASA Are Generally Coordinating Their Human Factors 
R&D, Key Areas Could Benefit from Increased Attention: 

Participation in Advisory and Coordinating Bodies and Other Efforts 
Help FAA and NASA Align Their Human Factors R&D: 

FAA and NASA officials take advantage of a number of existing 
mechanisms to coordinate their human factors R&D efforts. First, they 
use the Research, Engineering, and Development Advisory Committee 
(REDAC), which advises on FAA's research, engineering, and development 
activities with experts from industry, academia, and other government 
agencies. REDAC was established in 1989 to advise the FAA 
Administrator on research and development needs in human factors, air 
traffic services, airport technology, aircraft safety, and 
environmental issues. According to officials from both agencies, their 
collaboration on REDAC helps to coordinate human factors R&D efforts. 
One of the REDAC subcommittees is devoted to human factors, and 
according to officials with HFREG and NGII, has provided important 
perspectives on research management and coordination among agencies, 
including human factors R&D. Several REDAC subcommittees have held 
meetings at NASA to facilitate its participation and ensure that REDAC 
is briefed on relevant NASA human factors projects as well as FAA's 
human factors R&D efforts. NASA officials also use REDAC to brief FAA 
officials on their human factors R&D efforts as well. 

In 2007, FAA and NASA took steps to better coordinate their human 
factors efforts as a direct result of REDAC's influence. The REDAC 
human factors subcommittee recommended that FAA and NASA exchange 
information about their human factors R&D efforts to better facilitate 
research coordination, which FAA and NASA did. In addition, in 2009, 
the subcommittee noted that while the agencies had improved 
coordination of human factors R&D, they could further improve 
coordination of FAA and NASA human factors R&D related to the NextGen 
Controller Efficiency Program.[Footnote 8] In response, officials with 
HFREG and NGII told us that they now review NASA human factors 
research announcements to determine their applicability for FAA 
NextGen R&D. NASA proposals encompass research that includes human 
factors issues as part of the proposed work. 

In addition, FAA and NASA take advantage of existing forums, meetings, 
and interagency agreements to coordinate their human factors R&D 
efforts. Officials with HFREG and NGII told us that FAA and NASA 
exchange R&D results through reports, presentations, and joint panel 
discussions at various seminars and professional conferences, 
including the annual Human Factors and Ergonomics Society 
conference.[Footnote 9] FAA officials added that they also attend 
NASA's technical interchange meetings to share ideas, learn of NASA's 
human factors research efforts, and coordinate research projects. FAA 
also exchanges R&D planning documentation with NASA annually and as 
needed to facilitate human factors R&D coordination activities. 

The agencies also have undertaken specific efforts to coordinate human 
factors R&D related to NextGen. FAA established research transition 
teams to address research gaps and coordinate research between FAA and 
NASA related to the primary NextGen systems. In September 2008, we 
reported that FAA and NASA established four research transition teams 
[Footnote 10] to outline how the two agencies will jointly develop 
research requirements.[Footnote 11] These teams help FAA and NASA 
identify R&D needed to implement NextGen and ensure that the research 
is not only conducted but effectively transitioned to the implementing 
agency. FAA is to provide requirements for users of the technologies, 
while NASA is to conduct the research and provide an understanding of 
the engineering rationale for design decisions. According to FAA, 
these research transition teams facilitate coordination and transition 
of new technologies and concepts related to NextGen, including human 
factors components. For example, FAA and NASA are using the research 
transition teams to coordinate human factors research on the roles and 
responsibilities of air traffic controllers and pilots, as well as 
their information needs and procedures, among other issues. 

In addition, over the past several years, FAA and NASA officials have 
established memorandums and interagency agreements that allow the 
agencies to collaborate on research projects and coordinate human 
factors R&D related to NextGen. The agreements include reimbursable 
interagency agreements between HFREG and NASA to leverage resources. 
According to interagency agreements and FAA officials, leveraging 
activities include: 

* researching, modeling, and testing the advanced technologies, 
automation, and services and capabilities that are required for 
successful implementation of NextGen with particular emphasis on the 
issues associated with the NextGen flight deck, 

* allowing collaborative research to develop NextGen data 
communications, human factors collision avoidance requirements, 
aircraft merging and spacing separation assurance systems, and 
guidance for use of NextGen synthetic vision systems, enhanced flight 
vision systems, and advanced cockpit vision technologies, and: 

* developing models, simulations, and demonstrations that will 
quantify efficiencies and benefits for the included programs, and 
evaluate the operational feasibility of concepts. 

HFREG has approved or initiated 35 human factors research activities 
in partnership with NASA, universities, and private corporations. 
Supporting flight deck human factors efforts for NextGen, HFREG has 
approved or initiated 22 NextGen human factors research activities. 
FAA funds the activities and plans to budget $45 million for them 
between fiscal year 2009 and fiscal year 2011. In addition, HFREG has 
approved or initiated 13 NextGen air traffic control human factors 
research activities. NASA, the Volpe National Transportation Systems 
Center, and academic and private research facilities and institutions 
are conducting much of the research, with the goal of providing 
scientific and technical information to support development of NextGen-
related standards, procedures, training, policy and other guidance as 
well as human factors assessments of NextGen technologies and 
procedures. The research includes projects related to NextGen 
communication systems, automation and human roles and 
responsibilities, risk and error management, decision making, aircraft 
separation assurance and collision avoidance, ground operations, 
aircraft trajectory management, instrument procedures, personnel 
training and qualifications, and single pilot operations. NASA 
officials have agreed to consult HFREG officials about their NextGen 
human and automation roles and responsibility research and inform them 
about the research. In addition, FAA signed two 5-year interagency 
agreements with NASA in 2009 to provide NASA up to $19 million in 
funding for human factors research projects covering both flight deck 
and air traffic control issues. 

FAA Has Not Developed a Cross-Agency Coordination Plan: 

While FAA and NASA officials have taken many steps to coordinate their 
human factors R&D, JPDO issued a report in April 2008 that raised 
concerns regarding FAA and NASA coordination of human factors R&D for 
supporting NextGen.[Footnote 12] Specifically, JPDO reported that 
there was no cross-agency plan for identifying and addressing priority 
NextGen human factors issues and recommended that FAA, in cooperation 
with NASA, develop such a plan. JPDO recommended that FAA initiate an 
effort across agencies, industry, and academia to develop a cross- 
agency plan for NextGen human factors R&D that: 

* establishes focus areas for human factors research and development; 

* inventories existing capabilities and laboratories for conducting 
human factors R&D; 

* capitalizes on past and current human factors research and, where 
appropriate, reorients it; and: 

* ensures that the agencies perform the appropriate human factors R&D 
during the initial phases of NextGen. 

HFREG developed a human factors R&D portfolio in 2009 as part of its 
effort to improve cross-agency coordination of NextGen human factors 
R&D. Officials added that the portfolio is the beginning of their 
attempt to meet JPDO's recommendation to develop a cross-agency human 
factors research plan. The portfolio lists and describes all past, 
ongoing, and planned NextGen human factors R&D projects. HFREG 
officials stated that the portfolio demonstrates the extent to which 
FAA and NASA human factors R&D efforts are aligned, and described the 
portfolio as a repository of NextGen human factors R&D. They added 
that the portfolio is intended to assist NextGen researchers in 
developing concepts, establishing requirements, identifying research 
gaps, and determining additional research and engineering 
considerations. 

FAA's human factors portfolio is a good step toward better 
coordinating human factors R&D, but does not currently satisfy JPDO's 
cross-agency plan recommendation. Our review of the FAA portfolio 
indicates that it is a listing and description of R&D projects and 
results, but not a cross-agency plan with features characteristic of 
plans, such as role definitions, goals, and time frames. Likewise, the 
DOT Inspector General reported in April 2010 that FAA has not 
developed a cross-agency research plan to identify and address how 
NextGen will affect the roles of controllers and pilots and help 
ensure that new concepts and technologies can be safely implemented. 
[Footnote 13] The Inspector General observed that such a plan would 
establish an agreed-upon set of initial focus areas for research, 
provide inventories of existing facilities for research, and 
capitalize on past and current research because both NASA and FAA 
conduct human factors work specifically for air traffic management. 

A cross-agency plan could help better ensure that FAA and NASA follow 
key collaboration practices. We have previously reported that federal 
agencies must effectively collaborate in order to deliver results more 
efficiently and in a way that is consistent with their multiple 
demands and limited resources.[Footnote 14] We identified several 
practices that could enhance and sustain collaboration efforts, 
including agreeing on roles and responsibilities, establishing 
mutually reinforcing or joint strategies, and establishing compatible 
policies, procedures, and other means to operate across agency 
boundaries, among other things. A cross-agency coordinating plan that 
establishes an agreed-upon set of initial focus areas for research, 
inventories existing facilities for research, and capitalizes on past 
and current research would help FAA and NASA more closely follow key 
practices for enhancing and sustaining collaboration. 

Experts' Opinions on Sufficiency of Human Factors Coordination Efforts 
Vary: 

Our panel of nine human factors experts had mixed views about FAA's 
and NASA's efforts to improve coordination of their human factors R&D 
efforts. While some experts told us that the steps the agencies have 
taken in response to JPDO and REDAC recommendations are sufficient, 
others suggested that FAA and NASA could do more to improve their 
human factors coordination. Similarly, officials representing two 
aviation associations had mixed views regarding coordination; one 
association stated that NASA and FAA are well coordinated, while 
another stated that FAA and NASA need to provide more clarity and 
consensus on their coordination plans.[Footnote 15] 

Four of the nine experts stated that FAA and NASA were coordinating 
well on human factors research related to NextGen and did not suggest 
further actions the agencies could take to better coordinate research. 
However, five experts stated that FAA and NASA could better coordinate 
human factors research. They suggested hosting additional human 
factors conferences to improve coordination, and prioritizing 
coordination of NextGen human factors research. More specifically, two 
experts told us that while the agencies have held conferences and 
research workshops (as previously discussed), they have not held 
conferences specifically devoted to human factors research for 
supporting NextGen. According to FAA officials, hosting such 
conferences is very expensive, so HFREG tries to leverage hosting 
sessions at external conferences and annual meetings. For example, FAA 
officials sponsored a session on human factors issues related to 
NextGen at the Human Factors and Ergonomics Society's Aerospace 
Systems Technical Group meeting in May 2008 and plan to hold another 
similar session at this year's annual meeting in September. 

FAA and NASA Have Several Ongoing Human Factors R&D Efforts That 
Support NextGen, but a Majority of Experts Suggest FAA and NASA Adopt 
Additional Measures, Including Strengthening Human Factors Leadership: 

FAA and NASA Have Undertaken a Variety of Human Factors R&D Efforts 
and Designated Funding to Support NextGen: 

FAA and NASA have created and shared planning documents for how the 
agency will incorporate human factors R&D into NextGen. As previously 
noted, FAA has taken steps to standardize the way it integrates human 
factors considerations into all aviation projects. To this end, FAA 
developed a NextGen Human System Integration Roadmap to identify and 
address human factors R&D needs for supporting NextGen in particular. 
In addition, as previously discussed, FAA created the Human Factors 
Portfolio, which lists and describes all past, ongoing, and planned 
NextGen human factors R&D projects. According to FAA, the portfolio 
was intended to identify potential gaps and unfunded R&D needs across 
midterm and potential far-term operational improvements for NextGen. 
Although we find it currently lacking as a coordination tool, it does 
enumerate the NextGen projects that are under way, which could be 
useful in terms of monitoring the efforts of other stakeholders. 

In addition, HFREG officials told us that FAA has a range of human 
factors R&D initiatives that support NextGen. FAA not only conducts 
focus groups and interviews with a panel of human factors experts, but 
also conducts live simulations and field trials to evaluate system and 
human performance in different scenarios. For example, FAA conducted 
human simulations with pilots and air traffic controllers in fiscal 
year 2008 and planned further simulations for its High Density Airport 
Capacity and Efficiency Improvement Project in fiscal year 2009. 
[Footnote 16] The agency also conducts field surveys and interviews of 
operational personnel that are extensively used to address major 
NextGen and other aviation human factors issues that have an impact on 
the workforce. For example, FAA plans to conduct a survey to assess 
the degree of fatigue in the controller workforce. 

NASA also has human factors research efforts that support NextGen. 
Officials told us that NASA experiments with early concept 
technologies that will involve human interaction, thereby fully 
leveraging the strengths and mitigating the weaknesses of both the 
human and automated components. NASA staff then conduct simulations to 
test human compatibility and subsequently help FAA develop the 
technologies that prove themselves capable of supporting NextGen. 

Over the last 2 years, FAA has also dedicated financial resources 
specifically to incorporating human factors R&D into NextGen. Prior to 
fiscal year 2008, FAA used funding from its overall human factors R&D 
budget for NextGen projects, one of various types of human factors 
R&D; however, since fiscal year 2008, FAA has had a specific human 
factors research and development budget for NextGen. To incorporate 
human factors issues into NextGen, for example, conducting additional 
human simulations and field trials, FAA invested $25.5 million in 
human factors R&D specifically dedicated to NextGen from fiscal year 
2008 through fiscal year 2010,[Footnote 17] and has requested 
additional funding for fiscal year 2011 to fiscal year 2013. NASA 
officials told us that NASA conducts applied human factors research 
across its Aviation Safety and Airspace Systems programs and does not 
have a specific line item budget for NextGen. According to these 
officials, this research addresses human factors considerations for 
new concepts and technologies applicable to NextGen. In addition, 
NASA's Aeronautics Research Mission Directorate programs were 
realigned in 2006, causing difficulty in assessing funding trends 
across several years of similar research activities. 

Experts Cited Suggestions Regarding Human Factors Efforts Supporting 
NextGen: 

For the most part, aviation human factors experts we interviewed 
stated that FAA's and NASA's human factors R&D efforts adequately 
support NextGen. For example, experts commended FAA and NASA for 
appropriately conducting human factors R&D according to the three-
phase implementation structure for NextGen systems. As previously 
mentioned, FAA is mainly responsible for R&D to support near-term 
implementation and midterm implementation, while NASA conducts much of 
the research to address far-term implementation. One expert also told 
us that FAA, in response to REDAC input, has developed a good method 
for understanding likely human performance. NASA also has modeled 
NextGen systems to predict how beneficial NextGen systems will be to 
users. However, a majority of experts offered suggestions for further 
incorporating human factors issues into NextGen. Experts specifically 
identified the following suggestions: 

Better ensure that human factors issues are fully integrated 
throughout design and development of NextGen systems. Human factors 
must be considered and integrated throughout the design and 
development of aviation systems. Failure to fully consider human 
factors issues at all stages can increase costs and delay projects. 
Six of nine experts and a senior official at the Volpe National 
Transportation Systems Center were concerned that NextGen developers 
may not be adequately considering human factors R&D throughout the 
entire NextGen planning and implementation process.[Footnote 18] FAA 
has not fully integrated human factors considerations into the 
development of some aviation systems. For example, FAA did not fully 
address human factors considerations in developing the En Route 
Automation Modernization (ERAM) system, which FAA plans to complete by 
2010.[Footnote 19] According to the National Air Traffic Controllers 
Association (NATCA), air traffic controllers involved in initial 
operations capabilities tests at an air traffic control center in Salt 
Lake City have come across significant problems with using the system. 
According to NATCA, controllers have found the new formats cumbersome, 
confusing, and difficult to navigate, thus indicating that FAA did not 
adequately involve those who operate the system (controllers) in the 
early phases of system development. As a result, to better ensure 
optimal performance of ERAM, FAA will have to address these human 
factors issues before it deploys the new system. This could increase 
the costs or delay the implementation of other components of NextGen, 
such as the previously mentioned Automatic Dependent Surveillance-
Broadcast System, since the operation of numerous NextGen components 
will depend on this new system. FAA officials within the En Route 
Automation Modernization office agreed with NATCA's views on the new 
system and added that the simulation capabilities of its Technical 
Center in Atlantic City, New Jersey, where the agency conducts human 
factors testing, were not robust enough to capture all of the problems 
subsequently identified by controllers.[Footnote 20] In May 2010, 
however, FAA announced the building of an Aviation Research and 
Technology Park near FAA's Technical Center to provide a central 
location for partners in academia, industry, and other state and 
federal government agencies to work on NextGen. According to FAA, the 
park is being built with no direct cost to FAA and has amassed $3.5 
million in grant funding. In June 2010, FAA issued a task order to 
MITRE Corporation to conduct a programmatic review of the ERAM problem 
and make an assessment of what circumstances led to the current delay, 
among other things. The MITRE Corporation is expected to issue a final 
report on October 1, 2010. 

Similarly, in reviewing the development of the Operational and 
Supportability Implementation System,[Footnote 21] the Department of 
Transportation's Inspector General reported that FAA identified a 
number of significant human factors concerns with the system, such as 
inadequately addressing weather information.[Footnote 22] The 
Inspector General concluded that system developers did not adequately 
consider human factors research throughout design and development, 
thereby contributing to the delay of the system's implementation. 
Similarly, as noted in a report we issued in 2005,[Footnote 23] FAA's 
failure to provide adequate attention to human factors issues when 
implementing the Standard Terminal Automation Replacement System 
resulted in schedule slips and a significant cost increase of $500 
million.[Footnote 24] As noted, however, since fiscal year 2008, FAA 
has designated funding solely for human factors R&D supporting 
NextGen. It remains to be seen if FAA's added emphasis on human 
factors research and engineering will better ensure that human factors 
issues are fully integrated into the development of future NextGen 
components. 

Ensuring the mitigation of human factors issues also involves 
oversight of contractors. HFREG officials told us that they do not 
track vendors to make sure they are considering human factors R&D 
issues in their development, as this is a responsibility of the 
program managers who lead procurement efforts for FAA systems. 
However, once contracts are awarded, contractors are supposed to 
follow the contract specifications, which can include human factors 
system performance requirements. HFREG officials told us that in the 
past they collaborated with program office human factors coordinators 
to assess outside vendors' compliance with human factors issues; they 
found that the contractors were not in compliance in all aspects, 
particularly human factors. In April 2010, the Department of 
Transportation's Inspector General also expressed concern about FAA's 
ineffective oversight of a contractor in developing NextGen systems, 
adding that NextGen implementation will require significant contract 
oversight.[Footnote 25] Furthermore, FAA's post-implementation review 
of the Advanced Technologies and Oceanic Procedures system concluded 
that FAA and the contractors who developed the system did not, from a 
human factors perspective, develop the system to meet FAA's needs. The 
post-implementation review recommended that for future systems, FAA 
should ensure that it articulates to contractors in unambiguous terms 
the human factors-related characteristics that the proposed system 
must meet. According to the Chief Scientist for NextGen and Operations 
Planning, a contractor developing an aviation system may have 
implemented human factors designs that were originally flawed or may 
have had a flawed methodology for incorporating human factors issues 
into system development. FAA program offices and contractors often 
support the incorporation of human factors consideration in a system 
by convening a panel of controllers and obtaining their feedback. Such 
a method may result in the controllers providing information regarding 
their preferences instead of information regarding the usability of 
the system to the controller panel. An alternative method may be to 
conduct a modeling effort that analyzes data on human performance for 
certain components of the system. HFREG officials also noted that 
under the best of circumstances, all major and most human factors 
issues should be identified and mitigated during system development, 
making it unusual for additional problems to arise when a system is 
being implemented. To address this issue, experts stated FAA should 
ensure system developers consider human factors in all phases of the 
development of aviation systems (as required by the Human Factors 
Policy Order). Having oversight of system developers (including 
contractors) that develop NextGen systems to make sure they adhere to 
FAA's Human Factors Policy Order would significantly reduce the 
possibility of expensive and untimely delays. FAA has taken action to 
improve its oversight of contractors. For example, in its June 2010 
letter to MITRE, FAA requested an assessment of the ERAM contractor's 
program management procedures and practices as part of an overall 
review of the program. 

Improve collaboration of human factors efforts across FAA departments. 
Collaboration within FAA departments is important to ensure that 
aviation systems are designed and developed with agency input from 
human factors researchers. Several experts we interviewed stated that 
system development projects with a human factors research component 
take place in different departments and offices at FAA, and that those 
developing the systems do not always collaborate. While HFREG provides 
R&D and engineering support, HFREG officials told us that there is no 
requirement for program offices or developers to consult with HFREG. 
HFREG conducted a post-implementation review of the Advanced 
Technologies and Oceanic Procedures that implied that system managers 
did not properly consider human factor issues.[Footnote 26] This 
suggests that the system managers either did not consult human factors 
stakeholders (including HFREG) or did not fully address their human 
factors issues through a collaborative working relationship. As a 
result, the post-implementation review concluded that from a human 
factors perspective, the system that was implemented in the field was 
not the system FAA had asked for. FAA's experience in developing the 
Advanced Technologies and Oceanic Procedures is an indication of what 
can happen when system developers fail to collaborate with human 
factors specialists and develop a comprehensive human factors program. 
To improve collaboration, HFREG officials also told us that the Chief 
Scientist of the NextGen and Operations Planning unit sponsored a 
technical interchange meeting in January 2010 to better ensure that 
all FAA units involved in NextGen development are aware of the need to 
fully consider human factors in their work. The Chief Scientist plans 
to host another technical interchange meeting on July 29, 2010. 

Strong Leadership Would Improve Consideration of Human Factors Issues: 

A majority of the experts we interviewed agree that strong leadership 
is needed to provide adequate consideration of human factors issues 
within NextGen. Furthermore, a September 2008 National Academy of 
Public Administration's report identified leadership as the single 
most important element of success for large-scale systems integration 
efforts like NextGen. That report highlighted leadership as a NextGen 
implementation challenge. The critical impact of human factors issues 
on NextGen indicates that human factors issues require strong 
leadership to ensure they are a priority for NextGen. FAA has not 
prioritized consistently staffing the top two leadership positions 
within FAA that are formally responsible for human factors R&D. 
Specifically, the Chief Systems Engineer for Human Factors position 
has been vacant since the previous chief retired in January 2010. 
[Footnote 27] Moreover, FAA did not assign a permanent program 
director of HFREG for 16 months, from January 2009 until FAA filled 
the position in June 2010.[Footnote 28] 

The leadership void was the issue most frequently identified by the 
nine experts. Seven of nine experts we interviewed told us that the 
lack of leadership within FAA is a significant challenge in ensuring 
that human factors R&D supports NextGen.[Footnote 29] Although a 
majority of the experts were concerned that the leadership void could 
have prevented human factors issues from being fully considered for 
NextGen, subsequently delaying the implementation of a system, none 
could identify any specific examples. Nevertheless, FAA officials 
emphasized the importance of both positions. FAA officials told us 
that the Chief System Engineer position could be pivotal in 
integrating and maximizing the effectiveness of human factors in 
support of NextGen and is thus critical to prioritizing NextGen 
research and resources within FAA. JPDO officials we interviewed 
stressed that the program director of HFREG is the single most 
important position needed to ensure that the necessary human factors 
R&D is conducted and that the results are integrated into the 
development of NextGen systems. 

According to FAA officials, FAA has not had a chance to fill the 
position of Chief System Engineer--which FAA now refers to as the 
human factors integration lead--because of a hiring freeze and 
uncertainty as to which unit to put the position. FAA has resolved 
those issues and plans to begin the process for filling the position. 
Officials cautioned, however, that it may take a long time to find a 
qualified candidate with the right human factors expertise and other 
relevant skill sets. Nonetheless, FAA would like to fill the position 
by the close of fiscal year 2010. FAA officials also told us that it 
took a long time to fill the position of program director for HFREG, 
in part because of the long process of completing required personnel 
administrative procedures. The new program director of HFREG was 
formerly the acting program director and had been in that position 
since the previous program director left. The assignment to program 
director involved a change in the position classification that 
involved several time-consuming administrative procedures to address, 
according to HFREG officials and an FAA senior executive. 

Experts also told us in filling these positions that the new leaders 
should have adequate authority to make sure that human factors issues 
are considered (particularly early in system development) and 
prioritized during all phases of NextGen development. These positions 
currently lack the authority to ensure that human factors issues are 
addressed early and throughout the NextGen system development process. 
Such authority could mitigate the need to redesign these systems after 
implementation has begun, which can cause delays and add costs. For 
example, as previously discussed, it has been found that FAA's human 
factors plans have not adequately addressed how humans will use newly 
developed NextGen weather information. One of the experts we consulted 
who has worked extensively with FAA on human factors R&D told us that 
a program director of the HFREG or Chief System Engineer who has 
adequate authority could have reviewed the weather information to 
ensure that human factors were fully integrated into that and other 
NextGen systems. However, in filling the position of program director 
of HFREG, FAA did not authorize the new program director with 
additional authority to review NextGen programs and ensure that human 
factors issues are addressed. HFREG officials told us that FAA is 
conducting a review of distribution among HFREG, service units, and 
other offices for responsibility and authority to conduct human 
factors activities to better serve the human factors needs of NextGen. 

Conclusions: 

Human factors research must be incorporated into NextGen to ensure 
that controllers, pilots, and other aviation system users can operate 
NextGen in a safe and efficient manner. To this end, FAA and NASA have 
pursued a wide range of efforts to incorporate human factors R&D into 
NextGen. However, these and future efforts will require a sustained 
focus not only across agencies but from the beginning to the end of 
the long process of developing a complex system like NextGen. Some 
suggest that FAA can meet this challenge by incorporating two elements 
into its human factors R&D efforts: 

* a cross-agency plan developed in cooperation with NASA to identify, 
prioritize, and coordinate NextGen human factors issues, and: 

* strong and consistent leadership with the authority to not only 
prioritize human factors issues but ensure that they are taken into 
account throughout NextGen. 

Recommendations for Executive Action: 

We recommend that the Secretary of Transportation direct the FAA 
Administrator to take the following two actions: 

* create a cross-agency human factors coordination plan in cooperation 
with NASA, as JPDO has previously recommended, that establishes an 
agreed-upon set of initial focus areas for research, inventories 
existing facilities for research, and capitalizes on past and current 
research of all NextGen issues, and: 

* assign a high priority to filling the vacancy of human factors 
integration lead and structure that position and the program director 
of HFREG position in a manner that provides the authority to ensure 
that human factors research and development is coordinated, 
considered, and prioritized in all phases of NextGen development. 

Agency Comments: 

We provided a draft of this report to the Department of Transportation 
and NASA for review and comment. NASA had no comments. DOT agreed to 
consider the recommendations and provided technical clarifications, 
which we incorporated into the report as appropriate. 

We are sending copies of this report to the Secretary of 
Transportation, FAA, NASA, and interested congressional committees. 
The report is also available at no charge on GAO's Web site at 
[hyperlink, http://www.gao.gov]. 

If you or your staff have any questions about this report, please 
contact me at (202) 512-2834 or dillinghamg@gao.gov. Contact points 
for our Offices of Congressional Relations and Public Affairs may be 
found on the last page of this report. GAO staff who made major 
contributions to this report are listed in appendix II. 

Signed by: 

Gerald L. Dillingham, Ph.D., 
Director, Physical Infrastructure Issues: 

[End of section] 

Appendix I: Scope and Methodology: 

In response to your request, this report provides information on the 
status of the Department of Transportation's Federal Aviation 
Administration's (FAA) and National Aeronautics and Space 
Administration's (NASA) efforts to incorporate human factors issues 
into the Next Generation Air Transportation System (NextGen). In 
particular, we sought to identify the extent to which (1) FAA's and 
NASA's human factors research and development (R&D) is coordinated, 
and (2) FAA's and NASA's human factors R&D supports NextGen. 

In determining the extent to which FAA's and NASA's human factors R&D 
is coordinated, we obtained and analyzed information provided by FAA 
and NASA officials on mechanisms in place to align human factors R&D 
efforts. We asked FAA and NASA officials to describe the mechanisms 
that are in place to coordinate the agency's human factors R&D. We 
assessed the information FAA and NASA officials provided us regarding 
their coordination mechanisms by comparing those efforts with 
recommendations issued by the Joint Planning and Development Office 
(JPDO)--an interagency organization responsible for planning NextGen. 
In 2008, JPDO issued a cross-agency gap analysis that found FAA and 
NASA lacked a cross-agency plan for identifying and addressing 
priority NextGen human factors issues. We also assessed FAA's and 
NASA's coordination efforts by summarizing the views of nine external 
aviation human factors experts who reviewed and assessed FAA's and 
NASA's coordination mechanisms. See our discussion below for more 
detail regarding the nine aviation human factors experts. We also 
obtained the views of several aviation industry officials, including 
officials from the Aerospace Industries Association, Air Transport 
Association, Air Line Pilots Association, MITRE Corporation,[Footnote 
30] National Air Traffic Controller Association, JPDO, Volpe National 
Transportation Systems Center, and the Boeing Corporation.[Footnote 
31] We also reviewed relevant reports issued by GAO, the Inspector 
General of the Department of Transportation, and the National Academy 
of Public Administration. 

In determining the extent to which FAA's and NASA's human factors R&D 
supports NextGen, we obtained relevant planning documents from FAA and 
NASA and had FAA and NASA officials provide us with detailed 
descriptions of their human factors R&D efforts. We provided this 
information and other related planning documents to nine aviation 
human factors experts and representatives from three aviation industry 
associations and asked them about their views on the extent to which 
FAA's and NASA's human factors research supports NextGen. The experts 
provided suggestions that FAA and NASA could adopt to better 
incorporate human factors issues in developing NextGen, and we 
reported the suggestions that a majority of experts recommended FAA 
and NASA adopt. In addition, we obtained the views of several aviation 
industry officials identified above. 

In assessing FAA and NASA human factors R&D coordination and human 
factors R&D supporting NextGen, we summarized the views of nine 
aviation human factors experts. We took several steps to identify 
potential aviation human factors experts. First, we identified experts 
in human factors R&D that GAO had consulted in the past. We then asked 
cognizant FAA and NASA officials responsible for and knowledgeable 
about aviation-related human factors R&D to recommend experts in 
aviation-related human factors R&D. In addition, we conducted 
comprehensive Internet searches for human factors aviation experts. 
Finally, we asked experts identified in the first four steps to 
recommend other human factors aviation experts. Taking these steps 
enabled us to identify 25 potential experts. 

To make our final expert selection, we narrowed our selection of the 
25 potential experts based on the following criteria: 

* knowledge of aviation-related human factors research as determined 
by published research, such as human factors research related to 
aviation development, and: 

* knowledge of NextGen planning and implementation needs as determined 
by research, published work, and participation in NextGen seminars, 
conferences, and workshops.[Footnote 32] 

Applying the criteria listed above to the 25 potential experts 
resulted in a final selection of 11 experts who have significant 
knowledge in both aviation-related human factors R&D and more 
specifically human factors R&D pertaining to NextGen. We obtained and 
synthesized responses from 9 of the 11 aviation human factors experts. 
The experts we obtained responses from are listed in table 1. We 
interviewed an additional selected expert prior to finalizing our 
methodology and incorporated the expert's views where appropriate in 
this report. 

Table 1: Experts Providing Responses: 

Expert: Deborah A. Boehm-Davis; 
Title and position: George Mason University Professor and Chair of the 
Department of Psychology, Department of Psychology, Human Factors, and 
Applied Cognition. 

Expert: Kim Cardosi; 
Title and position: Volpe National Transportation Systems Center 
National Expert, Aviation Human Factors. 

Expert: Frank Durso; 
Title and position: Georgia Institute of Technology Professor of 
Psychology. 

Expert: R. John Hansman; 
Title and position: Massachusetts Institute of Technology Professor of 
Aeronautics and Astronautics, Department of Aeronautics and 
Astronautics. 

Expert: John Lauber; 
Title and position: Airbus Industries Senior Vice President (retired) 
Chief Product Safety Officer. 

Expert: Raja Parasuraman; 
Title and position: George Mason University Director PhD Program in 
Human Factors and Applied Cognition. 

Expert: Amy Pritchett; 
Title and position: Georgia Institute of Technology Associate 
Professor, School of Aerospace Engineering Joint Associate Professor, 
School of Industrial and Systems Engineering . 

Expert: Nadine Sarter; 
Title and position: University of Michigan Associate Professor 
Department of Industrial and Operations Engineering. 

Expert: Christopher Wickens; 
Title and position: University of Illinois Professor Visual Cognition 
and Human Performance. 

Source: GAO. 

[End of table] 

[End of section] 

Appendix II: GAO Contact and Staff Acknowledgments: 

GAO Contact: 

Gerald L. Dillingham, Ph.D., (202) 512-2834 or dillinghamg@gao.gov: 

Staff Acknowledgments: 

In addition to the contact above, other key contributors to this 
report were Ed Laughlin, Assistant Director; Samer Abbas; Bert 
Japikse; Richard Hung; Michael Mgebroff; Tina Paek; and Amy Rosewarne. 

[End of section] 

Footnotes: 

[1] These partners include the Departments of Commerce (particularly 
its National Oceanic and Atmospheric Administration), Defense, 
Homeland Security, and Transportation, and the White House Office of 
Science and Technology Policy. 

[2] Appendix I lists the experts who provided information to GAO. 

[3] MITRE is a not-for-profit organization chartered to work in the 
public interest. MITRE manages four federally funded research and 
development centers, including one for FAA. MITRE has its own 
independent research and development program that explores new 
technologies and new uses of technologies to solve problems in the 
near term and in the future. 

[4] The Volpe Center is part of the Department of Transportation's 
Research and Innovative Technology Administration and is a federal, 
fee-for-service organization whose mission is to improve the nation's 
transportation system. Volpe's work is performed for the Department of 
Transportation, as well as other federal, state, local, and 
international agencies and entities. 

[5] FAA Order 9550.8. 

[6] A visual approach occurs when air traffic control authorizes an 
aircraft to proceed visually to the airport of intended landing. 

[7] FAA also uses other sources of funding to support human factors 
functions. In addition, this amount does not include funding for human 
factors R&D conducted at the MITRE federally funded research and 
development center. 

[8] The NextGen Controller Efficiency Program examines the roles of 
the various actors in the national airspace system, including 
controllers, pilots, dispatchers, and maintainers, to ensure safe 
operations at increased capacity levels and how those roles are best 
supported by allocation of functions between human operators and 
automation. 

[9] The society was founded in 1957 to promote the discovery and 
exchange of knowledge concerning the characteristics of human beings 
that are applicable to the design of systems and devices of all kinds. 

[10] GAO, Next Generation Air Transportation System: Status of Systems 
Acquisition and the Transition to the Next Generation Air 
Transportation System, [hyperlink, 
http://www.gao.gov/products/GAO-08-1078] (Washington, D.C. Sept. 11, 
2008). 

[11] The research transition teams are Efficient Flow into Congested 
Airspace, Multi-Sector Planner, Dynamic Airspace Configuration, and 
Integrated Arrival/Departure/Surface. 

[12] JPDO consists of representatives from the Departments of 
Transportation, Defense, Commerce, and Homeland Security, and NASA. 

[13] Department of Transportation Inspector General, Testimony Before 
the Committee on Transportation and Infrastructure, Subcommittee on 
Aviation, U.S. House of Representatives, Challenges in Meeting FAA's 
Long-Term Goals for the Next Generation Air Transportation System, 
(Washington, D.C.: Apr. 21, 2010). 

[14] GAO, Results-Oriented Government: Practices That Can Help Enhance 
and Sustain Collaboration among Federal Agencies, [hyperlink, 
http://www.gao.gov/products/GAO-06-15], (Washington, D.C.: Oct. 21, 
2005). 

[15] Officials from a third aviation association did not have an input 
regarding FAA and NASA coordination. 

[16] The High Density Airport Capacity and Efficiency Improvement 
Project attempts to take advantage of existing ground technologies and 
functionality as a first step toward trajectory-based operations. It 
leverages airborne navigational capabilities that already exist on 
most commercial production and many in-service airplanes. 

[17] FAA also uses other sources of funding to support human factors 
functions for NextGen. In addition, this amount does not include 
funding for human factors R&D conducted at the MITRE federally funded 
research and development center. 

[18] The Volpe National Transportation Systems Center assesses the 
activities and needs of the transportation community, evaluates 
research and development activities in the technology community, and 
assists in the application and deployment of new transportation 
technologies and policies. It also addresses major national and 
international transportation issues related to safety, security, 
environment, mobility, and economic growth and trade. 

[19] The En Route Automation Modernization program will replace the 
primary computer system used to control air traffic. The new system 
will replace software and hardware in the host computers at FAA's 20 
en route air traffic control centers, which provide separation, 
routing, and advisory information. 

[20] Officials from FAA's Air Traffic Organization also stated that 
the inclusion of human factors best practices for ERAM was extensive 
and followed FAA's human factors policy order. They noted that air 
traffic controllers and technical operations specialists were 
extensively involved through structured human factors activities and 
design and development of the system from very early in the design and 
throughout the process. According to these officials, the current 
problems with ERAM stem from the quality of information presented to 
the operator. 

[21] The Operational and Supportability Implementation System replaces 
workstation consoles, among other things, at automated flight service 
stations. It furnishes up-to-the-minute weather graphics by 
integrating real-time weather and flight planning data with an overlay 
of flight routes. It also provides operational support, retrieves 
reports, and supplies lighting data and icing images. 

[22] Department of Transportation Inspector General, Report on 
Automated Flight Service Stations: Significant Benefits Could Be 
Realized by Consolidating Sites in Conjunction With Deployment of 
OASIS, (Washington, D.C.: Dec. 7, 2001). 

[23] GAO, National Airspace System: FAA Has Made Progress but 
Continues to Face Challenges in Acquiring Major Air Traffic Control 
Systems, [hyperlink, http://www.gao.gov/products/GAO-05-331] 
(Washington, D.C.: June 10, 2005). 

[24] The Standard Terminal and Automation Replacement System is a 
joint program of FAA, the Department of Defense (DOD), and DOT. It 
replaces aging FAA and DOD terminal systems with state-of-the-art 
terminal air traffic control systems. The system is designed to 
prevent duplication of development and logistic costs. 

[25] FAA, Advanced Technologies & Oceanic Procedures (ATOP): Human 
Factors Post Implementation Review, (Washington, D.C.: July 2008). 

[26] The Advanced Technologies and Oceanic Procedures system replaced 
FAA's systems and procedures responsible for separating aircraft over 
the oceans, enabling controllers to reduce spacing between aircraft in 
flight. Now fully deployed, ATOP is an integrated air traffic control 
system for the U.S.-controlled oceanic airspace. In fiscal year 2006, 
ATOP was in place at all three oceanic sites: the Oakland, California; 
New York, New York; and Anchorage, Alaska, Air Route Traffic Control 
Centers. 

[27] The previous chief was also operating on a part-time basis. 

[28] FAA appointed a HFREG program director in January 2009, but the 
official was detailed to the Department of Transportation and never 
served in the position. That official is now the JPDO Director. FAA 
officials told us that personnel rules precluded assignment of another 
person to permanently fill the program director position while the 
appointed official was on detail. 

[29] An eighth expert stated that filling the positions would benefit 
NextGen only if those positions had more authority. 

[30] MITRE is a not-for-profit organization chartered to work in the 
public interest. MITRE manages four federally funded research and 
development centers, including one for FAA. MITRE has its own 
independent research and development program that explores new 
technologies and new uses of technologies to solve problems in the 
near term and in the future. 

[31] Despite several attempts, we were unable to obtain interviews 
with representatives from other aviation associations, including the 
Air Traffic Control Association and RTCA Inc.--a private, not-for-
profit corporation that develops consensus-based recommendations on 
communications, navigation, surveillance, and air traffic management 
issues. 

[32] For both selection criteria, we used Internet searches to 
determine the extent to which identified experts had knowledge of 
aviation-related human factors research and NextGen planning and 
implementation. 

[End of section] 

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