Transcription of INTERIM PAVEMENT DESIGN PROCEDURE - NCDOT
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INTERIM PAVEMENT DESIGN PROCEDURE - NCDOT
NCDOT PAVEMENT DESIGN PROCEDURE AASHTO 1993 METHOD N. C. Department of Transportation Materials and Tests Unit PAVEMENT Section January 4, 2019 TABLE OF CONTENTS INTRODUCTION .. 1 PAVEMENT DESIGN EQUATIONS .. 1 TRAFFIC ESALS .. 3 TERMINAL SERVICEABILITY INDEX .. 4 RELIABILITY .. 5 LAYER COEFFICIENTS .. 6 LOADING LEVELS (SUPERPAVE MIX DESIGNS) .. 7 UNIT WEIGHTS; APPLICATION 7 ASPHALT CEMENT PERCENTAGES .. 8 PAVEMENT LAYER DEPTHS .. 9 MINIMUM DEPTHS FOR PAVEMENT 10 PAVEMENT DESIGNS FOR DETOURS.
=Design Number of Years TTST F = TTST Loading Factor ADT C = Average Annual Daily Traffic in the year of construction. Dual F = Duals Factor Lane Distribution Factors (L D) No. of Lanes In One direction Lane Distribution Factor 1 1.0 2 0.9 3 or more 0.8 A lane distribution factor of 0.50 will be used for the design
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