They also provide reassurance to developers and communities that future growth can continue. Again, Portland is a shining example of the effectiveness of the urban growth boundary. Urban growth boundaries have also been implemented through standard zoning practices. Fauquier County, Virginia, has identified nine villages as growth areas, while the rest of the county is set aside for farmland and open space. Funding for concurrent development can be provided by both state and local agencies.
Concurrency is a central feature of Florida's state wide planning law.
Development Rights Transferring or purchasing development rights is typically used as a means of safeguarding open space by compensating the owner for not developing land. These measures are used successfully across the nation by both governmental units and non-profit groups such as land conservancies. One of the most effective PDR programs in the country now is taking shape on Old Mission Peninsula, north of Traverse City, Michigan. Regional or State Planning Many states have enacted statewide or regional planning legislation. There are varying approaches, depending upon the organization of the state and its local governments.