Effects of Subsurface Drainage on Pavement Performance: Analysis of the SPS-1 and SPS-2 Field Sections (2007)

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93 AASHTO—American Association of State Highway and Transportation Officials AC—asphalt concrete AGG—aggregate AGG1—unbound aggregate layer directly beneath an AC or PCC layer AGG2—unbound aggregate layer beneath a treated base layer ATB—asphalt-treated base ATB/DGG—asphalt-treated base over dense-graded aggregate ATB/PATB—asphalt-treated base over permeable asphalt- treated base CAM—cement-aggregate mixture DGA—dense-graded aggregate DOT—department of transportation FHWA—Federal Highway Administration FWD—falling weight deflectometer GPS—general pavement studies HMAC—hot-mix asphalt concrete HMA—hot-mix asphalt IRI—international roughness index JPCP—jointed plain concrete pavement LCB—lean concrete base LTPP—long-term pavement performance MnRoad—Minnesota Road Research Project NHI—National Highway Institute NRCS—Natural Resources Conservation Service PATB—permeable asphalt-treated base PATB/AGG—permeable asphalt-treated base over aggregate PCC—portland cement concrete SHRP—Strategic Highway Research Program SPS-1—Strategic Study of Structural Factors for Flexible Pavements SPS-2—Strategic Study of Structural Factors for Rigid Pavements SPS—specific pavement studies Abbreviations and Acronyms