NASA-Developed Air Traffic Management Tool Flies Into Use

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June 23, 2015

RELEASE 15-108

NASA-Developed Air Traffic Management Tool Flies Into Use

A new software tool developed by NASA, and being deployed by the Federal
Aviation Administration (FAA), is positioned to help air traffic controllers
manage the nation's skies.

The software, called Terminal Sequencing and Spacing (previously called TSS,
now TSAS), will help air traffic controllers manage airspace within a
doughnut-shaped region of sky that begins five miles from a major airport and
extends outward about 35 miles. This new technology will allow pilots to
better use flight deck automation to fly fuel-efficient, optimized profile
descents, which streamlines glide paths toward the runway reducing fuel use
and noise toward an airport, and safely permits more flights to merge
together at a point where they can be cleared for final approach and landing.

"With TSAS, NASA's aeronautical innovators have developed another
valuable tool that will benefit our environment, our economy and every
individual air traveler," said Jaiwon Shin, associate administrator of
NASA's Aeronautics Research Mission Directorate in Washington. "Our strong
partnership with the FAA is a key enabler of the rapid and successful
development of this TSAS technology."

The new traffic management technology makes it easier for pilots to use
modern arrival procedures and eases air traffic controller workload through
automation of some procedures and communications with flight crews. In turn,
these advances will help the aviation industry and travelers by reducing
emissions, air traffic congestion and fuel consumption.

Work on the software tool began in 2009, and the first prototype began system
integration and testing in 2011. Since then, it has been put through more
than two dozen high-fidelity tests involving controllers and pilots, and
using the world-class simulation facilities at NASA's Ames Research Center
in Moffett Field, California.

NASA transferred the TSAS technologies to the FAA in 2014 for further testing
and evaluation. The FAA and NASA completed an operational integration
assessment of the tool in May at its William J. Hughes Technical Center at
Atlantic City International Airport in New Jersey. During the assessment, air
traffic controllers put the system through its paces using high fidelity,
real-time simulations designed to identify issues related to operational use,
such as training, procedures for handling anomalies, and integration with
other air traffic control systems.

"Our collaboration with NASA on NextGen technologies is a valuable
component of our success," said Edward Bolton Jr., assistant administrator
for NextGen at the FAA. "We look forward to seeing many benefits from TSAS.
We expect that it will enhance existing technologies that we use to
efficiently handle traffic in the airport environment."

The FAA received a final investment decision for the program, meaning the
agency intends to deploy the capability in the National Airspace System (NAS)
beginning with nine major airports located in Phoenix, Houston, Atlanta,
Seattle, San Francisco, Las Vegas, Charlotte, Denver and Los Angeles between
2018 and 2022.

TSAS complements other NASA-developed tools that have been turned over to the
FAA the past 20 years to help manage portions of the nation's air traffic
control system.

"The current level of flight deck automation available to the pilot community
is underutilized due to a lack of controller automation tools," said
National Air Traffic Controllers Association representative Eric
Owens. "TSAS is one more step in the direction of optimizing the NAS."

Air traffic management software tools such as TSAS are developed by the
Aeronautics Research Mission Directorate's Airspace Operations and Safety
Program. For more information about NASA's aeronautics research, visit:

http://www.nasa.gov/aeronautics


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