Terms: National Investment Needs (424), national investment (1,540,000), average annual cost to maintain (439), cost to maintain (551,000),
Terms: infrastructure needs (3,730,000), infrastructure sector (1,260,000),
Boolean: "investment needs" +airports (90,700), "investment needs" +highways (106,000), "investment needs" +bridges (109,000), infrastructure +"cost to maintain" (138,000), highways +"cost to maintain" (20,900), bridges +"cost to maintain" (22,500), hospitals +"investment needs" (105,000), hospitals +"cost to maintain" (20,900), prisons +"cost to maintain" (2,260), prisons +"investment needs" (8,480), schools +"cost to maintain" (81,900), schools +"investment needs" (268,000), tunnels +"cost to maintain" (1,770), tunnels +"investment needs" (14,200),
FHWA - 2006 Conditions and Performance - Investment/Performance Analysis - Highways and Bridges, Transit
Highways - Maintain ($78.8 billion), with Improvements ($131.7 billion)
Transit - Maintain ($15.6 billion), with Improvements ($24 billion)
Associated General Contractors of America - Infrastructure Investment - Federal Facility Infrastructure, School Infrastructure, Surface Transporation Reauthorization, Transportation Infrastructure, Aviation, Rail,
National Society of Professional Engineers - Infrastructure 1998,
Infrastructure Report Card 2005
National Education Association - School Modernization, Modernizing Schools,
National Center for Education Statistics - Planning Guide for Maintaining School Facilities, Condition of America’s Public School Facilities: 1999
Boolean: site:nea.org +"school modernization" (179), site:nces.ed.gov +infrastructure (552), site:nces.ed.gov +condition +america +facilities (324),
Boolean: site:nspe.org +"infrastructure needs" (5),
Terms: school infrastucture (54), school infrastructure needs (2,760), capital spending on schools (1,150),
Terms: Highway Economic Requirements System (9,680), National Bridge Investment Analysis System (194), Transit Economic Requirements Model (254), capital investment scenarios (75), conditions and performance (203,000),
Terms: Airport Improvement Program (318,000), public works (74,900,000), public works financing (19,400),
Boolean: "public finance" +schools (2,410,000), "public finance" +prisons (218,000), "public finance" +transit (488,000), "public finance" +airports (373,000), "public finance" +infrastructure (2,590,000), "public finance" +"infrastructure needs" (32,600),