The purpose of this study was to determine the effectiveness of both a two and four mile range ring versus a single three mile range ring on pilot's perception of future vertical separation as viewed on a cockpit display of traffic information. The subjects consisted of 30 volunteer pilots from Embry-Riddle Aeronautical University and the surrounding Daytona Beach, Florida area.
The simulation of a cockpit display of traffic information was generated using SuperCard® Version 1.6 software and a Macintosh IIx® personal computer. Eighty unique scenarios were monitored by the pilots in which they determined, as early as possible, what the vertical miss distance would be when a single intruder passed the subject's aircraft (ownship). The pilots' perceived vertical miss distance (error) and decision time were compiled for each scenario. The use of multiple range rings required significantly more time for the pilots' to choose a vertical miss distance versus a single range ring. The use of multiple range rings had no significant effect on error versus the single range ring.
","abstract_html":"<p>The purpose of this study was to determine the effectiveness of both a two and four mile range ring versus a single three mile range ring on pilot's perception of future vertical separation as viewed on a cockpit display of traffic information. The subjects consisted of 30 volunteer pilots from Embry-Riddle Aeronautical University and the surrounding Daytona Beach, Florida area.</p> <p>The simulation of a cockpit display of traffic information was generated using SuperCard® Version 1.6 software and a Macintosh IIx® personal computer. Eighty unique scenarios were monitored by the pilots in which they determined, as early as possible, what the vertical miss distance would be when a single intruder passed the subject's aircraft (ownship). The pilots' perceived vertical miss distance (error) and decision time were compiled for each scenario. The use of multiple range rings required significantly more time for the pilots' to choose a vertical miss distance versus a single range ring. The use of multiple range rings had no significant effect on error versus the single range ring.</p>","abstract_has_math":false,"creators":["Rizzardi, Daniel B."],"institution":null,"degree_name":"Master of Aeronautical Science","degree_level":"Thesis - Open Access","degree_discipline":"Aeronautical Science","degree_department":null,"school":null,"contributors":["John A. Wise","James W. Blanchard","Lance K. Erickson"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1998,"date_issued":"1998-12-01T08:00:00Z","date_published":"1998-12-01T08:00:00Z","updated_at":"2026-07-27T19:25:23Z","subjects":["range rings","pilot perception","cockpit display","air traffic","Aerospace Engineering","Aviation"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://commons.erau.edu/db-theses/175","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["John A. Wise","James W. Blanchard","Lance K. Erickson"]},{"key":"dc:creator","label":"Author","values":["Rizzardi, Daniel B."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Aeronautical Science"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis - Open Access"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Aeronautical Science"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["range rings","pilot perception","cockpit display","air traffic","Aerospace Engineering","Aviation"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://commons.erau.edu/db-theses/175"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The purpose of this study was to determine the effectiveness of both a two and four mile range ring versus a single three mile range ring on pilot's perception of future vertical separation as viewed on a cockpit display of traffic information. The subjects consisted of 30 volunteer pilots from Embry-Riddle Aeronautical University and the surrounding Daytona Beach, Florida area.
The simulation of a cockpit display of traffic information was generated using SuperCard® Version 1.6 software and a Macintosh IIx® personal computer. Eighty unique scenarios were monitored by the pilots in which they determined, as early as possible, what the vertical miss distance would be when a single intruder passed the subject's aircraft (ownship). The pilots' perceived vertical miss distance (error) and decision time were compiled for each scenario. The use of multiple range rings required significantly more time for the pilots' to choose a vertical miss distance versus a single range ring. The use of multiple range rings had no significant effect on error versus the single range ring.
"]},{"key":"dc:title","label":"Title","values":["Effect of Multiple Range Rings VS. a Single Range Ring on Pilot Perception of Vertical Separation on a Cockpit Display of Traffic Information"]}]}],"canonical_facts":{"dc:contributor":["John A. Wise","James W. Blanchard","Lance K. Erickson"],"dc:creator":["Rizzardi, Daniel B."],"dc:description.abstract":["The purpose of this study was to determine the effectiveness of both a two and four mile range ring versus a single three mile range ring on pilot's perception of future vertical separation as viewed on a cockpit display of traffic information. The subjects consisted of 30 volunteer pilots from Embry-Riddle Aeronautical University and the surrounding Daytona Beach, Florida area.
The simulation of a cockpit display of traffic information was generated using SuperCard® Version 1.6 software and a Macintosh IIx® personal computer. Eighty unique scenarios were monitored by the pilots in which they determined, as early as possible, what the vertical miss distance would be when a single intruder passed the subject's aircraft (ownship). The pilots' perceived vertical miss distance (error) and decision time were compiled for each scenario. The use of multiple range rings required significantly more time for the pilots' to choose a vertical miss distance versus a single range ring. The use of multiple range rings had no significant effect on error versus the single range ring.
"],"dc:identifier":["https://commons.erau.edu/db-theses/175"],"dc:subject":["range rings","pilot perception","cockpit display","air traffic","Aerospace Engineering","Aviation"],"dc:title":["Effect of Multiple Range Rings VS. a Single Range Ring on Pilot Perception of Vertical Separation on a Cockpit Display of Traffic Information"],"thesis:degree_discipline":["Aeronautical Science"],"thesis:degree_level":["Thesis - Open Access"],"thesis:degree_name":["Master of Aeronautical Science"]},"updated_at":"2026-07-27T19:25:23Z"}