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Measures for urban sprawl in Europe: upper left the Dispersion of the built-up area (DIS), upper right the weighted urban proliferation (WUP). The term urban sprawl was often used in the letters between Lewis Mumford and Frederic J. Osborn, [17] firstly by Osborn in his 1941 letter to Mumford and later by Mumford, generally condemning the waste of agricultural land and landscape due to ...
25 largest French urban areas in 2010. In France, an urban unit (French: unité urbaine) is a statistical area defined by INSEE, the French national statistics office, for the measurement of contiguously built-up areas.
In 2013 the United Kingdom's Office for National Statistics (ONS) published 2011 Built-up Areas – Methodology and Guidance which sets out its definition of a Built-up area (BUA) as an area of built-up land of at least 20 hectares (0.077 sq mi), separated from other settlements by at least 200 metres (660 ft).
Urban planning, also known as town planning, city planning, regional planning, or rural planning in specific contexts, is a technical and political process that is focused on the development and design of land use and the built environment, including air, water, and the infrastructure passing into and out of urban areas, such as transportation ...
An urban growth boundary (UGB) is a regional boundary, set in an attempt to control urban sprawl by, in its simplest form, mandating that the area inside the boundary be used for urban development and the area outside be preserved in its natural state or used for agriculture. Legislating for an urban growth boundary is one way, among many ...
All qualifying areas are now designated as urban areas. The use of housing unit density as an alternative minimum for inclusion: either 2,000 housing units or a population of 5,000 may qualify an area as an urban area. Previously, this minimum was 2,500 in population. The lowering of the allowable "jump distance" from 2.5 to 1.5 miles.
In the urban planning and development industries, infill has been defined as the use of land within a built-up area for further construction, especially as part of a community redevelopment or growth management program or as part of smart growth. [6] [7] It focuses on the reuse and repositioning of obsolete or underutilized buildings and sites. [8]
This is the floor area of buildings divided by the land area. Ratios below 1.5 are low density. Ratios above five constitute very high density. Most exurbs are below two, while most city centres are well above five. Walk-up apartments with basement garages can easily achieve a density of three. Skyscrapers easily achieve densities of thirty or ...