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Glossary Listing

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Keyword Definition
Unified Planning Work Program (UPWP) The management plan for the (metropolitan) planning program. Its purpose is to coordinate the planning activities of all participants in the planning process.
Urbanized Area Area that contains a city of 50,000 or more population plus incorporated surrounding areas meeting size or density criteria as defined by the U.S. Census.
U.S. Flag Carrier or American Flag Carrier (Air) One of a class of air carriers holding a Certificate of Public Convenience and Necessity, issued by the U.S. Department of Transportation and approved by the President, authorizing scheduled operations over specified routes between the United States (and/or its territories) and one or more foreign countries.
Unlinked Passenger Trips (Transit) The number of passengers boarding public transportation vehicles. A passenger is counted each time he/she boards a vehicle even if the boarding is part of the same journey from origin to destination.
Urban Highway Any road or street within the boundaries of an urban area. An urban area is an area including and adjacent to a municipality or urban place with a population of 5,000 or more. The boundaries of urban areas are fixed by state highway departments, subject to the approval of the Federal Highway Administration, for purposes of the Federal-Aid Highway Program.
United States (U.S.) Territories Include Samoa, Guam, the Northern Marianas, Puerto Rico and the Virgin Islands. (FHWA2)
Unpaved Road Surface Gravel/soil and unimproved roads and streets (Surface/Pavement Type Codes 20, 30 and 40). (FHWA2)
Union of Soviet Socialist Republic (U.S.S.R) Consisted of 15 constituent republics Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgystan, Latvia, Lithuania, Moldava, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan. As a political entity, the U.S.S.R. ceased to exist as of December 31, 1991. (DOE3)
United States Travel and Tourism Administration (USTTA) An agency in the Commerce Department; it's principal mission is to implement broad tourism policy initiatives for the development of international travel to the U.S. as a stimulus for economic stability. (USTTA1)
United States Code Contains a consolidation and codification of all general and permanent laws of the U.S. (USCG1)

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Updated: 03/21/2012
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