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From page 599... ... N-1 APPENDIX N DEVELOPMENT OF ARTIFICIAL NEURAL NETWORK MODELS FOR PREDICTING GEOSYNTHETIC-REINFORCED PAVEMENT PERFORMANCE The current Pavement ME Design software predicts pavement performance based on the computed critical pavement responses from a linear isotropic and layered elastic program. Read the entire page →
From page 600... ... N-2 requires a large database of input and output variables (2) Read the entire page →
From page 601... ... N-3 Table N-2. Selected Input Parameters for Unreinforced Pavement Structures Influential Factors Level Input Values Load Magnitude 1 9 kip HMA Thickness 3 2, 4, and 6 inches HMA Modulus 3 300, 450, and 600 ksi Base Thickness 3 6, 10, and 15 inches Base Vertical Modulus 3 20, 40, and 60 ksi Base Anisotropic Ratio 2 0.35 and 0.45 Subgrade Modulus 3 5, 15, and 25 ksi Note: The number of total cases was 486. Read the entire page →
From page 602... ... N-4 Figure N-1. Illustration of Three-Layered Neural Network Architecture Prediction of Pavement Performance The pavement response database was first randomly divided into a training dataset and a validating dataset as the ratio of 80 percent and 20 percent, respectively. Read the entire page →
From page 603... ... N-5 Figure N-2. Comparison of Tensile Strain at the Bottom of the Asphalt Concrete for GG-M Structure Read the entire page →
From page 604... ... N-6 Figure N-3. Comparison of Average Vertical Strain in the Asphalt Concrete for GG-M Structure Read the entire page →
From page 605... ... N-7 Figure N-4. Comparison of Average Vertical Strain in the Base Layer for GG-M Structure Read the entire page →
From page 606... ... N-8 Figure N-5. Comparison of Vertical Strain at the Top of the Subgrade for GG-M Structure Read the entire page →
From page 607... ... N-9 Figure N-6. Comparison of Vertical Strain at 6 inches below the Top of the Subgrade for GG-M Structure Read the entire page →
From page 608... ... N-10 Figure N-7. Comparison of Tensile Strain at the Bottom of the Asphalt Concrete for GG-B Structure Read the entire page →
From page 609... ... N-11 Figure N-8. Comparison of Average Vertical Strain in the Asphalt Concrete for GG-B Structure Read the entire page →
From page 610... ... N-12 Figure N-9. Comparison of Average Vertical Strain in the Base Layer for GG-B Structure Read the entire page →
From page 611... ... N-13 Figure N-10. Comparison of Vertical Strain at the Top of the Subgrade for GG-B Structure Read the entire page →
From page 612... ... N-14 Figure N-11. Comparison of Vertical Strain at 6 inches below the Top of the Subgrade for GG-B Structure Read the entire page →
From page 613... ... N-15 Figure N-12. Comparison of Tensile Strain at the Bottom of the Asphalt Concrete for GT-M Structure Read the entire page →
From page 614... ... N-16 Figure N-13. Comparison of Average Vertical Strain in the Asphalt Concrete for GT-M Structure Read the entire page →
From page 615... ... N-17 Figure N-14. Comparison of Average Vertical Strain in the Base Layer for GT-M Structure Read the entire page →
From page 616... ... N-18 Figure N-15. Comparison of Vertical Strain at the Top of the Subgrade for GT-M Structure Read the entire page →
From page 617... ... N-19 Figure N-16. Comparison of Vertical Strain at 6 inches below the Top of the Subgrade for GT-M Structure Read the entire page →
From page 618... ... N-20 Figure N-17. Comparison of Tensile Strain at the Bottom of the Asphalt Concrete for GT-B Structure Read the entire page →
From page 619... ... N-21 Figure N-18. Comparison of Average Vertical Strain in the Asphalt Concrete for GT-B Structure Read the entire page →
From page 620... ... N-22 Figure N-19. Comparison of Average Vertical Strain in the Base Layer for GT-B Structure Read the entire page →
From page 621... ... N-23 Figure N-20. Comparison of Vertical Strain at the Top of the Subgrade for GT-B Structure Read the entire page →
From page 622... ... N-24 Figure N-21. Comparison of Vertical Strain at 6 inches below the Top of the Subgrade for GT-B Structure Read the entire page →
From page 623... ... N-25 Figure N-22. Comparison of Tensile Strain at the Bottom of the Asphalt Concrete for NG Structure Read the entire page →
From page 624... ... N-26 Figure N-23. Comparison of Average Vertical Strain in the Asphalt Concrete for NG Structure Read the entire page →
From page 625... ... N-27 Figure N-24. Comparison of Average Vertical Strain in the Base Layer for NG Structure Read the entire page →
From page 626... ... N-28 Figure N-25. Comparison of Vertical Strain at the Top of the Subgrade for NG Structure Read the entire page →
From page 627... ... N-29 Figure N-26. Comparison of Vertical Strain at 6 inches below the Top of the Subgrade for NG Structure References 1. Read the entire page →
From page 628... ... N-30 3. Ceylan, H., Bayrak, M.B., and Gopalakrishnan, K Read the entire page →

From page 599...

... N-1 APPENDIX N DEVELOPMENT OF ARTIFICIAL NEURAL NETWORK MODELS FOR PREDICTING GEOSYNTHETIC-REINFORCED PAVEMENT PERFORMANCE The current Pavement ME Design software predicts pavement performance based on the computed critical pavement responses from a linear isotropic and layered elastic program.