Go to the NASA Homepage
Search >
Click to Search
Human Systems Integration Division homepageHuman Systems Integration Division homepage Organization pageOrganization page Technical Areas pageTechnical Areas page Outreach and Publications pageOutreach and Publications page Contact pageContact page
Human Systems Integration Division Homepage
Outreach & Publications Sidebar Header
Go to the Outreach & Publications pageGo to the Outreach & Publications page
Go to Awards pageGo to Awards page
Go to News pageGo to News page
Go to Factsheets pageGo to Factsheets page
Go to Multimedia pageGo to Multimedia page
Go to Human Factors 101 pageGo to Human Factors 101 page
What is Human System Integration? Website
Publication Header
Feasibility of Mixed Equipage Operations in the Same Airspace  (2009)
Abstract Header
This study used a human-in-the-loop simulation to examine the feasibility of mixed equipage operations in an automated separation assurance environ- ment under higher traffic densities. The study involved two aircraft equi- page alternatives—with and without data link—and four traffic conditions. In all traffic conditions, the unequipped traffic count was increased linearly throughout the scenario from approximately 5–20 aircraft. The first condi- tion consisted solely of this unequipped traffic, while the remaining three conditions included a constant number of equipped aircraft operating with- in the same airspace: 15 equipped aircraft in the second condition, 30 in the third condition, and 45 in the fourth condition. If traffic load became exces- sive during any run, participants were instructed to refuse sector entry to inbound unequipped aircraft until sector load became manageable. Results showed a progressively higher number of unequipped aircraft turned away under the second, third, and fourth scenario conditions. Controller self- reported workload also increased progressively with the increasing level of equipped aircraft. Participants rated the mixed operations concept as ac- ceptable, with some qualifications about procedures and information dis- plays. These results showed that mixed operations might be feasible in the same airspace if unequipped aircraft count is held to a workable level. This level will decrease with increasing complexity. The results imply that an integrated airspace configuration is feasible to a limit. The results also indicate that the conflict detection and resolution automation, equipage, and traffic density are important factors that must be considered in air- space configuration.
Private Investigators Header
Authors Header
Groups Header
Keywords Header
Airspace, Equipage, Feasibility, Mixed, Operations, Same
References Header
ATC Quarterly
Download Header
Adobe PDF Icon  ATCQ_V174-N4_Kopardekar_etal.pdf (Download Acrobat Reader Click to download Adobe Acrabat Reader)
  (unknown file size) (unknown file type)
Go to the First Gov Homepage
Go to the NASA - National Aeronautics and Space Administration Homepage
Curator: Phil So
NASA Official: Jessica Nowinski
Last Updated: August 15, 2019