Candidate HUD Configurations to be studied in Year 2

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Candidate HUD Configurations to be studied in Year 2. NCSU. Objectives. To select candidate HUD configurations to be used in 2 nd year study. Choose among 32 configurations used in 1 st year study. The selected image should represent High/Medium/Low perceived clutter conditions.

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### Candidate HUD Configurationsto be studied in Year 2

NCSU

Objectives
• To select candidate HUD configurations to be used in 2nd year study.
• Choose among 32 configurations used in 1st year study.
• The selected image should represent High/Medium/Low perceived clutter conditions.
• Two or three configurations per each clutter condition.
Summary of Clutter Ratings

Predicted clutter ratings were calculated using the regression equation from the 1st year study .

The correlation between measured rating and predicted rating is r=0.8511 (p<0.0001).

Selection of Displays from Rankings

Steps and Criteria

Define three groups representing high/medium/low clutter ratings - lower 20%, middle 20% and upper 20% (6 images) in each.

2. Look for common displays across measured and predicted rankings in each category.

Select diverse set of displays among those found in both measured and predicted lists within groups.

Selection

• Common displays: N, M, K, O*
• -O* is quite similar to K except the absence of TCAS (which had the lowest regression coefficient).
• -Since N & M don’t have TCAS, K was selected.
• Final selection: N, M, K
• Common displays: H, F, C*
• No alternatives based on common displays.
• Final selection: H, F, C*
• Common displays: B, A*, D, I*, P
• I* is quite similar to B except the absence of TCAS.
• P has PRIMARY symbology and others don’t.
• D has SVS while others don’t.
• Final selection: A*, D, P
Configurations of High Clutter Ratings

Image K

Image N

Image M

SVS: Off

EVS: On

TCAS: Off

TUN: On

PRIM: On

SVS: On

EVS: On

TCAS: Off

TUN: On

PRIM: Off

SVS: On

EVS: On

TCAS: On

TUN: On

PRIM: On

(Use K in order to have a condition with TCAS, which is not in O*.)

Configurations of Medium Clutter Ratings

No alternatives based on common displays across measured and predicted ratings.

(Image C*)

Image H

Image F

SVS: On

EVS: On

TCAS: Off

TUN: Off

PRIM: On

SVS: On

EVS: Off

TCAS: On

TUN: Off

PRIM: On

SVS: Off

EVS: Off

TCAS: Off

TUN: On

PRIM: On

Configurations of Low Clutter Ratings

Image D

Image P

Image A*

SVS: Off

EVS: Off

TCAS: On

TUN: On

PRIM: Off

SVS: On

EVS: Off

TCAS: Off

TUN: Off

PRIM: Off

SVS: Off

EVS: Off

TCAS: Off

TUN: Off

PRIM: On

(Use D in order to have a condition with SVS, which is not included in B or I*.)

(Use P in order to have a condition with PRIMARY symbology.)