Tenn. Code § 13-3-302
The regional plan shall be made with the general purpose of guiding and accomplishing a coordinated, adjusted, efficient and economic development of the region which will, in accordance with present and future needs and resources, best promote the health, safety, morals, order, convenience, prosperity and welfare of the inhabitants, as well as efficiency and economy in the process of development, including, among other things, such distribution of population and of the uses of the land for urbanization, trade, industry, habitation, recreation, agriculture, forestry and other uses as will tend to create conditions favorable to transportation, health, safety, civic activities and educational and cultural opportunities, reduce the wastes of financial and human resources which result from either excessive congestion or excessive scattering of population, and tend toward an efficient and economic utilization, conservation and production of the supply of food, water, minerals, drainage, sanitary and other facilities and resources, and identify areas where there are inadequate or nonexistent publicly or privately owned and maintained services and facilities when the planning commission has determined that the services are necessary in order for development to occur.
T.C.A. § 13-3-302