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74 ABBREVIATIONS AND ACRONYMS APA Asphalt Pavement Association GPR Ground penetrating radar IC Intelligent compaction IRI International Roughness Index JMF Job mix formula MTD Material transfer device MTV Material transfer vehicle PQI Pavement Quality Indicator QA Quality assurance QC Quality control RAP Recycled asphalt pavement RAS Recycled asphalt shingles SMA Stone matrix asphalt TTI Texas Transportation Institute TxDOT Texas Department of Transportation USCOE United States Army Corps of Engineers VDOT Virginia Department of Transportation WMA Warm mix asphalt WSDOT Washington Department of Transportation