URBAN SITE

A site that has greater than 50 percent urbanized and less than 25 percent agricultural area.

URBAN SPRAWL

Urban Sprawl is the term for the inefficient expansion of cities developed without urban planning.

URBANIZATION

Urbanization refers to the population shift from rural to urban areas, often driven by economic motivations and access to the labor market. According to the latest UN data, more than half the global population currently live in urban areas and the proportion of urban residents is estimated to rise to 68% by 2050.(1) While North […]

USABLE STORAGE CAPACITY

The quantity of groundwater of acceptable quality that can be economically withdrawn from storage.

USED OIL

Spent motor oil from passenger cars and trucks collected at specified locations for recycling.

USER COST

Concept proposed for valuation of the depletion of mineral deposits (El Serafy, 1989). A time-bound stream of net revenues from the sale of an exhaustible natural resource is converted into a permanent income stream by investing part of the revenues—the user cost allowance—over the lifetime of the resource. The remaining amount of the revenue is […]

USER(S)

The entity agreeing to the Terms of Use, including such representative as the entity shall appoint and designate by completing the Project Developer’s Designation of Authority Form.

UTILITARIAN

An approach that focuses on the satisfaction of human preferences. In some cases, this is taken further and made the basis of a moral viewpoint.

UTILITY

The total satisfaction derived from the consumption of goods or services.