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Innovation

NASA Launches Five-Year Tech Demo to Improve Air Traffic Flow at Airports

Shared information will lead to more accurate planning and streamlined operation

Published: Wednesday, July 6, 2016 - 16:36

(NASA: Washington, D.C.) -- NASA is working toward a greener future in aviation, where airplanes push back from the gate, taxi to the runway, and take off much quicker. A more efficient, precise trip by an airplane from the gate to takeoff reduces the amount of time its jet engines spend running on the ground, reduces noise and emissions levels at the airport, and reduces the time you spend sitting and waiting to take off.

Before this future can be realized, the tools used today to manage arrivals and departures need to be upgraded. In this Next Generation Air Transportation System (NextGen) world, computers will streamline the sharing of information between everybody involved in arrivals and departures—air traffic controllers, managers, flight crews—so that an airplane’s movements through every point of its flight are more precisely coordinated. Especially at the world’s busiest airports, sharing information between the systems used to monitor an airplane’s flight will be key for more dependable and efficient air travel.

To support the transition to a NextGen approach, NASA is launching a five-year Airspace Technology Demonstration-2 (ATD-2) research and field test effort in coordination with the Federal Aviation Administration (FAA), air traffic management technology companies, and other aviation community partners such as Charlotte Douglas International Airport in North Carolina, American Airlines, and members of the National Air Traffic Controllers Association.

“We are excited to show how sharing information between air traffic management systems can benefit airports, airlines and passengers,” says Leighton Quon, project manager for NASA’s Airspace Technology Demonstrations project, which is run out of NASA’s Ames Research center in California’s Silicon Valley. “Shared information leads to more accurate planning so we can create a clearer picture to streamline all airport and airline operations.”

At most airports today, departures are managed on a first-come, first-served basis. Air traffic controllers use two-way radio voice communications to relay information to pilots. These conversations are not shared between multiple users or among the numerous computer-based systems that hold information about different segments of each flight, such as available gates, queues for takeoff, entering the airport’s airspace, and more. This can overload runways, causing excessive taxi and hold times.

Technologies that will be tested during ATD-2 will explore how to best use information to better plan and schedule aircraft movement. ATD-2 technologies will connect the people involved in orchestrating the different segments of a flight, and coordinate that flight’s schedules at the ramp, tower, terminal, and center control facilities. The ATD-2 computer-driven scheduling tools will help traffic managers make better decisions about how to reduce congestion during the busiest times at airports and improve departure times.​


Improved scheduling enables efficient spacing for aircraft to merge into air traffic. Credits: NASA

ATD-2 is getting underway at a new research laboratory at Charlotte Airport. The airport’s proximity to other East Coast airports contributes to a “metroplex” type of operation. A metroplex includes one or more commercial airports with shared airspace that serves at least one major city. Charlotte Airport shares airspace with Atlanta’s Hartsfield-Jackson Airport and with Washington, D.C.

American Airlines is the dominant carrier at Charlotte Airport and will be a valuable partner in the ATD-2 testing.

ATD-2 testing will be conducted in three phases during the next five years.
• Phase one: Baseline integrated arrival, departure, and surface-system demonstration, including FAA’s Surface Collaborative Decision Making concept, at Charlotte and Washington, D.C.’s air traffic control center. Begins September 2017, and evaluations run throughout 2018.
• Phase two: An expanded demonstration including scheduling scenarios that add Atlanta’s air traffic control center and a more complete fusion of NASA and FAA technologies. Begins September 2018, and evaluations run throughout 2019.
• Phase three: Continues field demonstration at Charlotte, Washington, and Atlanta air traffic control centers, and begins testing of the Metroplex Coordinator in the Dallas-Fort Worth airport, terminal control, and air traffic control center environment as a simulation or field test. The Metroplex Coordinator is the system used to coordinate departures from multiple metropolitan area airports competing for the same constrained airspace. Begins September 2019, and evaluation run throughout 2020.

“Solving the problem at a single airport is not enough,” says Quon. “An integrated system that coordinates all the players is needed, and the Metroplex Coordinator does this. It will be like the symphony conductor making sure all the various instruments, who know how to play their part, come together to perform the full composition.”

NASA expects results from each ATD-2 phase to inform the next. A NASA-FAA Research Transition Team will review findings from each phase; some initial changes to operations at the test sites could be implemented along the way, resulting in some early benefits from this work.

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NASA

Since its inception in 1958, the National Aeronautics and Space Administration (NASA) has accomplished many great scientific and technological feats in air and space. NASA technology also has been adapted for many nonaerospace uses by the private sector. NASA remains a leading force in scientific research and in stimulating public interest in aerospace exploration, as well as science and technology in general. Exploration of space has taught us to view Earth, ourselves, and the universe in a new way, humbled by the realization that Earth is just a tiny “blue marble” in the cosmos. Check out the “Thinking About NASA History” folder online as an introduction to how history can help you.