Changes to the AASHTO Guide for Design of Pavement Structuresby William O. Hadley, Texas Research and Development, Foundation, Austin, United States,
Abstract: At this juncture of the SHRP-LTPP program, it is appropriate to discuss the potential impacts that SHRP-LTPP results could have on the future AASHTO Guides for the Design of Pavement Structures. In this regard specific topical areas of the guide are outlined in this presentation which could undergo change as a result of the SHRP-LTPP program. Particular attention is given to expected changes in the guide which could result from the General Pavement Studies (GPS) data. The areas of the guide expected to be impacted by SHRP-LTPP include the design equations, serviceability measurements, materials characterization, and rehabilitation. The impact of the SHRP-LTPP results on the design equations would be evolutionary in nature and will be evident over the next ten to fifteen years.
Subject Headings: Pavement design | Structural design | Materials characterization | Serviceability | Rehabilitation | Construction materials
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