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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

Report
This report is an archived publication and may contain dated technical, contact, and link information
Publication Number: FHWA-HRT-04-145
Date: December 2005

Enhanced Night Visibility Series, Volume XIV: Phase III—Study 2: Comparison of Near Infrared, Far Infrared, and Halogen Headlamps on Object Detection in Nighttime Rain

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APPENDIX D—ANOVA TABLES FOR PEDESTRIANS IN STRAIGHT SECTIONS



Table 28. Pedestrian, denim clothing, left ANOVA summary table for the dependent measurement: detection distance.
Source DF SS MS F value P value  
TOTAL 59 420861.4       
Between
Age 2 65578.0 32789.0 5.16 0.0241 *
Subject/Age 12 76182.3 6348.5     
 
Within
VES 3 123148.5 41049.5 10.31 <.0001 *
VES by Age 6 12584.8 2097.5 0.53 0.7842  
VES by Subject/Age 36 143367.8 3982.4     

  * p < 0.05 (significant)

Table 29. Pedestrian, denim clothing, left ANOVA summary table for the dependent measurement: recognition distance.
Source DF SS MS F value P value  
TOTAL 59 396462.7       
Between
Age 2 59180.7405 29590.3702 4.36 0.0377 *
Subject/Age 12 81444.2385 6787.0199     
 
Within
VES 3 120891.2345 40297.0782 11.39 <.0001 *
VES by Age 6 7529.5261 1254.921 0.35 0.9025  
VES by Subject/Age 36 127417.0028 3539.3612     

  * p < 0.05 (significant)

Table 30. Pedestrian, denim clothing, right ANOVA summary table for the dependent measurement: detection distance.
Source DF SS MS F value P value  
TOTAL 58 375924.9       
Between
Age 2 18484.9 9242.5 1.71 0.2223  
Subject/Age 12 64893.9 5407.8     
 
Within
VES 3 77988.4 25996.1 5.36 0.0038 *
VES by Age 6 44679.6 7446.6 1.53 0.196  
VES by Subject/Age 35 169878.2 4853.7     

  * p < 0.05 (significant)

Table 31. Pedestrian, denim clothing, right ANOVA summary table for the dependent measurement: recognition distance.
Source DF SS MS F value P value  
TOTAL 58 379212.9       
Between
Age 2 22516.241 11258.1205 1.66 0.2308  
Subject/Age 12 81345.0437 6778.7536     
 
Within
VES 3 89691.7849 29897.2616 6.64 0.0011 *
VES by Age 6 28013.5336 4668.9223 1.04 0.4186  
VES by Subject/Age 35 157646.2573 4504.1788     

  * p < 0.05 (significant)

Table 32. Dynamic pedestrian ANOVA summary table for the dependent measurement: detection distance.
Source DF SS MS F value P value  
TOTAL 59 320730.1       
Between
Age 2 48397.1 24198.5 3.42 0.0668  
Subject/Age 12 84942.9 7078.6     
 
Within
VES 3 35015.7 11671.9 3.17 0.0359 *
VES by Age 6 19818.6 3303.1 0.90 0.5076  
VES by Subject/Age 36 132555.8 3682.1     

  * p < 0.05 (significant)

Table 33. Dynamic pedestrian ANOVA summary table for the dependent measurement: recognition distance.
Source DF SS MS F value P value  
TOTAL 59 314201.0       
Between
Age 2 62528.3286 31264.1643 4.17 0.0421 *
Subject/Age 12 89950.6015 7495.8835     
 
Within
VES 3 32769.8772 10923.2924 3.88 0.0169 *
VES by Age 6 27498.4954 4583.0826 1.63 0.1683  
VES by Subject/Age 36 101453.6729 2818.1576     

  * p < 0.05 (significant)

 

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