Environmental considerations in AASHTO pavement design guide: part 1, an overview

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Journal titleJournal of cold regions engineering
Subjectpavement; environmental factors
AbstractThis paper, the first of two companion papers, presents an overview of the effect of environmental factors, namely moisture and temperature, on the material properties of flexible pavement road structure considered in the design guides of the American Association of State Highway and Transportation Officials (AASHTO). It considers the historical development of AASHTO design guides and the new Mechanistic Empirical Pavement Design Guide (MEPDG). The study showed the shift in emphasis from total reliance on an empirical method to a combination of mechanistic and empirical methods in the new design guide. Further, moisture and temperature were indirectly considered in the current guide whereas these parameters are accounted for in the new design guide through the resilient modulus and the complex modulus. The sensitivity analyses of environmental consideration using the new design guide software are presented in the following paper.
AffiliationConstruction; National Research Council Canada
Peer reviewedYes
NRC numberNRC-CONST-56172
NPARC number21275433
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Record identifier28dcca4e-d6a2-4209-bf11-af3379dd194e
Record created2015-07-13
Record modified2016-05-09
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