presented to: by: date: federal aviation administration development of occupational testing for air...
TRANSCRIPT
Presented to:
By:
Date:
Federal AviationAdministrationDevelopment of
Occupational Testing for Air Traffic Control Color Vision
AVS Managers
Tom Chidester, Ph.D., Manager AAM-500
August 11, 2009
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ATCS Color Vision TestingAugust 11, 2009
CVD Perception of Color
Deuteranopia
Protanopia
(Pictures generated by an on-line CVD simulators: www.vischeck.com)
Tritanopia
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ATCS Color Vision TestingAugust 11, 2009
Severe Protanopia – Old Technology
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ATCS Color Vision TestingAugust 11, 2009
Severe Protanopia – Current Displays
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Critical Functions Using ColorSystem Function Color Redundant Coding AIR Job Analysis Reference ARTS Owned aircraft white Greater luminance 8A.01.01 (perform situation monitoring) Unowned aircraft green None 8A.01.01 (perform situation monitoring) Pointout yellow None 8A.01.04.08 (issue pointouts);
8A.01.04.09 (respond to pointouts)
Alert red Flashing alert text right of datablock
8A.01.02 (resolve aircraft conflict situations)
Weather 1 dark gray None 8A.01.05 (assess weather impact) Weather 2 brown None 8A.01.05 (assess weather impact) Weather 3 reddish brown None 8A.01.05 (assess weather impact) URET (aircraft list)
Owned aircraft white Greater luminance 6A.01.03 (manage air traffic sequences); 6A.01.04 (route or plan flights)
Predicted conflict red Position 6A.01.02 (resolve aircraft conflict situations)
Potential conflict yellow Position 6A.01.02 (resolve aircraft conflict situations)
Wrong altitude for direction of flight
yellow Position 6A.01.02 (resolve aircraft conflict situations)
Airspace conflict cyan Position 6A.01.02 (resolve aircraft conflict situations)
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ATCS Color Vision TestingAugust 11, 2009
Terminal
ACD
Enroute
DSR
Terminal
STARS
Highlight (non-critical)
DAL312 ZDCDEN B757
DAL312 ZDC210 3148 46 DEN B757
DAL312 ZDC210 3148 46
DAL312 ZDC210 3148 46 DEN B757
DAL312 ZDC210 3148 46
DAL312 ZDC210 3148 46 DEN B757
DAL312 ZDC210 3148 46 DEN B757
DAL312 ZDCDEN B757
Same as OwnedDesignation of R
DAL312 ZDC210 3148 46
CA
Coding varies by system:
CA
CACADAL312 ZDC210 3148 46 DEN B757
LALADAL312 ZDC210 3148 46
RFDAL312 ZDC PODEN B757
RFDAL312 ZDC PODEN B757
DAL312 ZDC PODEN B757DAL312 ZDC PODEN B757
CADAL312 ZDC210 3148 46 DEN B757
CADAL312 ZDC210 3148 46 DEN B757
Owned
Pointout
Unowned
Alert
Appears when Pointed Out
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ATCS Color Vision TestingAugust 11, 2009
ATCOV Subtests
• Radar Identification• Radar Multitasking• Alert Detection• Weather Identification• URET Identification
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ATCS Color Vision TestingAugust 11, 2009
Radar Identification Subtest
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ATCS Color Vision TestingAugust 11, 2009
Radar Multitasking Subtest
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ATCS Color Vision TestingAugust 11, 2009
Alert Detection Subtest
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ATCS Color Vision TestingAugust 11, 2009
Weather Identification Subtest
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ATCS Color Vision TestingAugust 11, 2009
URET Identification Subtest
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ATCS Color Vision TestingAugust 11, 2009
Results• Cut scores set by subtest at fifth percentile of 210
CVN ATCS in training– Because 95% of people see color in the same way– 13.9% fail one subtest on first attempt– All who retested passed on second attempt
• Tested 50 CVD subjects– 22% pass all subtests on first attempt– 32% pass on second attempt
• Limited deployment began in July– 6 of 7 who failed clinical screening passed ATCOV
• We can clear CVD candidates who can discriminate critical functions on critical displays
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Summary
• Color is increasingly used to communicate information; controllers must discriminate critical functions on critical displays
• Office of Aerospace Medicine maintains standards, clears controllers
• Aerospace Human Factors Division tasked to develop valid occupational test; accomplished
• Continuing research focuses on precisely documenting required perceptual ability today, propose standards for future displays