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53 AADT Average annual daily traffic AGC Associated General Contractors of America ASR Alkali silica reactivity Ï Population standard deviation CRT Conflict resolution team CPM Capital preventative maintenance DOT Department of transportation DRB Disputes Review Board ESAL Equivalent single axle load HMA Hot mix asphalt HBP Hot bituminous pavement IPFS Illinois Pavement Feedback System IRI International roughness index IRIS Illinois Roadway Information System LCCA Life-cycle cost analysis LTPP Long-term pavement performance O&M Operation and maintenance PET Pavement evaluation team PCC Portland cement concrete PCCP Portland cement concrete pavement PDI Pavement distress index PMS Pavement management system PPP Publicâprivate partnership PPTA PublicâPrivate Transportation Act QA Quality assurance QC Quality control R&R Rehabilitation and reconstruction WIM Weigh-in-motion Abbreviations and Symbols