Appendix 1: Data Sources and Availability ,,,,
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Publication/database ,Source ,Website ,Tables ,Update available (approx.) 
Air Carrier Activity Information System (ACAIS) ,"U.S. DOT, Federal Aviation Administration, Office of Airports ",http://www.faa.gov/arp/ ,"1-11, 1-12, 3-9 ",4th quarter 2007 
Air Traffic Statistics ,"U.S. DOT, RITA, Bureau of Transportation Statistics ",http://www.bts.gov ,"3-8, 4-6, 4-7 ",3rd quarter 2007 
Boating Statistics ,U.S. Coast Guard ,http://www.uscgboating.org ,"2-17, 2-18, 5-6 ",4th quarter 2007 
Border Crossing Data ,"U.S. DOT, RITA, Bureau of Transportation Statistics ",http://www.bts.gov/ programs/international/ border_ crossing_entry_data/ ,"3-12, 3-13, 3-14, 3-15, 3-16, 3-17, 3-18, 3-19, 3-20, 3-21, 3-22, 3-23, 4-9, 4-10, 4-11, 4-12, 4-13, 4-14, 4-15, 4-16, 4-17, 4-18, 4-19, 4-20 ",2nd quarter 2007 
American Community Survey ,U.S. Census Bureau ,http://www.census.gov ,4-1,2010
Commodity Flow Survey ,"U.S. DOT, RITA, Bureau of Transportation Statistics ",http://www.bts.gov/cfs/ ,"3-1, 3-2, 3-3 ",06/1905
County Business Patterns ,U.S. Census Bureau ,http://www.census.gov/ epcd/cbp/view/cbpview.html ,"6-1, 6-2, 6-3, 6-4, 6-5, 6-6 ",2nd quarter 2007 
General Aviation and Air Taxi Activity Survey ,"U.S. DOT, Federal Aviation Administration ",http://www.faa.gov/data_statistics/a viation_data_statistics/general_avi ation ,5-7,3rd quarter 2007 
Government Transportation Financial Statistics ,"U.S. DOT, RITA, Bureau of Transportation Statistics ",http://www.bts.gov ,"6-8, 6-9 ",4th quarter 2007 
Hazmat Summary by State ,"U.S. DOT, PHMSA, Office of Hazardous Material Safety ",http://hazmat.dot.gov/ ,"2-19, 2-20 ",1st quarter 2007 
Highway Statistics ,"U.S. DOT, Federal Highway Administration ",http://www.fhwa.dot.gov/policy/ohpi /hss/index.htm ,"1-1,1-2,1-4, 4-2, 5-1, 5-2, 53, 5-4, 6-12, 7-4 ",4th quarter 2007 
Maximum Posted Speed Limits for Passenger Vehicles ,"Insurance Institute for Highway Safety, Highway Loss Data Institute ",http://www.hwysafety.org/laws/state _laws/speed_limit_laws.html ,2-9,3rd quarter 2007 
Motorcycle and Bicycle Helmet Laws ,"Insurance Institute for Highway Safety, Highway Loss Data Institute ",http://www.hwysafety.org/laws/state _laws/helmet_current.html ,2-5,3rd quarter 2007 
National Bridge Inventory: Deficient Bridges by State and Highway System ,"U.S. DOT, Federal Highway Administration",http://www.fhwa.dot.gov/ bridge/britab.htm ,"1-5, 1-6, 1-7 ",1st quarter 2007 
National Transit Database ,"U.S. DOT, Federal Transit Administration ",http://www.ntdprogram.com ,"1-8, 2-16, 4-3, 4-4 ",1st quarter 2007 
Overseas Visitors to Selected U.S. States and Territories and Overseas Visitors to Select U.S. Cities/Hawaiian Islands ,"U.S. Dept. of Commerce, International Trade Administration, Office of Travel & Tourism Industries ",http://tinet.ita.doc.gov/ ,"4-21, 4-22 ",1st quarter 2007 
Petroleum Marketing Annual ,"U.S. DOE, Energy Information Agency ",http://www.eia.doe.gov ,6-11,3rd quarter 2007
Pipeline Statistics ,"U.S. DOT, PHMSA, Office of Pipeline Safety ",http://ops.dot.gov ,"2-21, 2-22, 2-23 ",1st quarter 2007 
Maritime Statistics ,"U.S. DOT, MARAD, Office of Statistical and Economic Analysis ",http://www.marad.dot.gov/ Marad_Statistics/index.html ,"3-6, 3-7, 3-24 ",1st quarter 2007 
Public Transportation Fact Book ,American Public Transportation Association ,http://www.apta.com/research/stats/factbook/inde x.cfm ,1-9,1st quarter 2007 
Railroad Safety Statistics Annual Report ,"U.S. DOT, Federal Railroad Administration, Office of Railway Safety ",http://safetydata.fra.dot.gov/OfficeofSafety ,"2-10, 2-11, 2-12, 2-13, 2-14, 2-15 ",4th quarter 2007 
Railroads and States ,Association of American Railroads ,http://www.aar.org/ AboutTheIndustry/StateInformation.asp ,"1-13, 1-14, 3-4, 6-7 ",1st quarter 2007 
Safety Belt Use ,"U.S. DOT, National Highway Traffic Safety Administration ",http://www-nrd.nhtsa.dot.gov/pdf/nrd30/NCSA/RNotes/2004/809813.pdf ,2-6,4th quarter 2007 
State Energy Consumption Data ,"U.S. Dept. of Energy, Energy Information Administration ",http://www.eia.doe.gov/emeu/states/_seds.html ,"7-1, 7-2, 7-3 ",2nd quarter 2007 
Toll Facilities in the United States: Bridges-Roads-Tunnels-Ferries ,"U.S. DOT, Federal Highway Administration ",http://www.fhwa.dot.gov/ohim/tollpage.htm ,1-3,3rd quarter 2007 
Traffic Safety Facts ,"U.S. DOT, National Highway Traffic Safety Administration ",http://www-nrd.nhtsa.dot.gov/departments/nrd30/ncsa/ ,"2-1, 2-2, 2-3, 2-4, 2-7, 2-8 ",4th quarter 2007 
Transborder Surface Freight Data ,"U.S. DOT, RITA, Bureau of Transportation Statistics ",http://www.bts.gov/transborder/reports.html ,"3-10, 3-11, 3-24 ",1st quarter 2007 
Urban Mobility Study ,Texas Transportation Institute ,http://mobility.tamu.edu/ ,5-5,3rd quarter 2007 
U.S. Civil Airmen Statistics ,"U.S. DOT, Federal Aviation Administration ",http://api.hq.faa.gov/pubs.asp ,5-8,3rd quarter 2007 
Waterborne Commerce in the United States ,"U.S. Army Corps of Engineers, Navigation Data Center ",http://www.iwr.usace.army.mil/ndc/wcsc.htm ,"1-15, 1-16, 3-5 ",1st quarter 2007 
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KEY: PHMSA = Pipeline and Hazardous Materials Safety Administration; MARAD = Maritime Administration; RITA = Research and Innovative Technology Administration; U.S. DOE = U.S. Department of Energy; U.S. DOT = U.S. Department of Transportation. ,,,,