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27 NEPAâNational Environmental Policy Act NPSâNational Park Service PASERâPavement Surface Evaluation and Rating PCâportland cement PCCâportland cement concrete PCIâpavement condition index RAPârecycled asphalt pavement RCIâRoadway Condition Index RMPâRoad Management Program or Road Maintenance Priority RROMACâRural Roads Operations and Maintenance Advi- sory Committee SRSâsecure rural schools TERRAâTransportation Engineering and Road Research Alliance TxDOTâTexas Department of Transportation URiâUnpaved Road Institute USFSâU.S. Forest Service USF&WâU.S. Fish and Wildlife Service VPDâvehicles per day VTransâVermont Agency of Transportation AADTâaverage annual daily traffic ADTâaverage daily traffic ASTâasphalt surface treatment BLMâBureau of Land Management BOMAGâbrand name road recycler/reclaimer BSTâbitumen surface treatment CaCl2âcalcium chloride CaltransâCalifornia Department of Transportation CSAHâCounty State Aid Highway DODâDepartment of Defense DOTâDepartment of Transportation FDRâfull-depth reclamation GISâGeographic Information System HCADTâheavy commercial average daily traffic IRIâInternational Roughness Index LRRBâLocal Roads Research Board LTAPâLocal Technical Assistance Program LVRâlow-volume road MCEAâMinnesota County Engineers Association MgCl2âmagnesium chloride MnDOTâMinnesota Department of Transportation NACEâNational Association of County Engineers GLOSSARY