Federal transportation legislation requires that a Metropolitan Planning
Organization (MPO) be designated for each urbanized area with a population
of more than 50,000 people in order to carry out the metropolitan
transportation planning process, as a condition of Federal aid.
As a result of the 2000 decennial Census, 76 new urbanized areas
were identified; 47 of these lie outside the metropolitan planning
area boundaries of any existing MPO. These areas will either have to
establish and staff a new MPO, or merge with an existing MPO.
Additionally, a total of 48 new Transportation Management Areas (TMAs) were designated by
the Secretary of Transportation as a result of increases in their urbanized
area population or because of splits or mergers of urbanized areas within existing
metropolitan planning area boundaries. TMAs generally are metropolitan areas with
a population greater than 200,000.
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