1992. Federal Highway Administration, Office of Intermodal and Statewide Programs (HEPS-20). The National Highway Planning Network is a comprehensive network database of the nation's major highway system. It consists of over 400,000 miles o... Bureau of Transportation Statistics.
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1995. Bureau of Transportation Statistics, (comp.). National Transportation Analysis Regions (NTAR) divide the U.S. into 89 areas that delineate the functional geography transportation demand. Bureau of Transportation Statistics.
1994. Vanderbilt Engineering Center for Transportation Operations and Research, Vanderbilt University. The National Waterway Network is a comprehensive network database of the nation's navigable waterways. The data set covers the 48 contiguous States... U.S. Army Corps of Engineers Navigation Data Center.
1994. Vanderbilt Engineering Center for Transportation Operations and Research, Vanderbilt University. The National Waterway Network is a comprehensive network database of the nation's navigable waterways. The data set covers the 48 contiguous States... U.S. Army Corps of Engineers Navigation Data Center.
1773. Harvard Map Collection, Harvard College Library, Harvard University. Library. Open Collections Program, Whitchurch, William., W. Strahan and T. Cadell (Firm), and Hawkesworth, John, 1715?-1773. This layer is a georeferenced raster image of the historic paper map entitled: Chart of part of the South Sea, shewing the tracts & discoveries mad... Harvard Map Collection, Harvard College Library.
1995. Bureau of Transportation Statistics, (comp.). The Public-Use Airports database is a geographic point database of aircraft landing facilities in the United States and U.S. Territories. Attribute... Bureau of Transportation Statistics.
1900. Harvard Map Collection, Harvard College Library. This layer is a georeferenced raster image of the historic paper map entitled: Carte du Transsibérien: avec l'indication des directions proposées... Harvard Map Collection, Harvard Library.
1997. Bureau of Transportation Statistics, Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). U.S. National Transportation Atlas Highways represents rural interstates and arteries; and urban freeways, expressways, interstates, arteries and c... Environmental Systems Research Institute, Inc. (ESRI).
1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing aeronautical facilities such as airports and airfields. Objects in this layer have an FACC (Feature...
1995. National Geospatial-Intelligence Agency. This datalayer is a point coverage representing control towers and airport lighting features throughout current VMap1 geographic coverage areas. Fe...