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An urban area is defined by the Census Bureau as a contiguous set of census blocks that are "densely developed residential, commercial, and other nonresidential areas". [1] Urban areas consist of a densely-settled urban core, plus surrounding developed areas that meet certain density criteria. Since urban areas are composed of census blocks and ...
In 2009, the number of people living in urban areas (3.42 billion) surpassed the number living in rural areas (3.41 billion), and since then the world has become more urban than rural. [4] This was the first time that the majority of the world's population lived in a city. [ 5 ]
t. e. In general, a rural area or a countryside is a geographic area that is located outside towns and cities. [ 1] Typical rural areas have a low population density and small settlements. Agricultural areas and areas with forestry are typically described as rural, as well as other areas lacking substantial development.
A settlement hierarchy is a way of arranging settlements into a hierarchy based upon their size. The term is used by landscape historians and in the National Curriculum [1] for England. The term is also used in the planning system for the UK and for some other countries such as Ireland, India, and Switzerland.
The United States Census Bureau changed its classification and definition of urban areas in 1950 and again in 1990, and caution is thus advised when comparing urban data from different time periods. [2] [3] Urbanization was fastest in the Northeastern United States, which acquired an urban majority by 1880. [2]
Urban geography is the subdiscipline of geography that derives from a study of cities and urban processes. Urban geographers and urbanists [ 1] examine various aspects of urban life and the built environment. Scholars, activists, and the public have participated in, studied, and critiqued flows of economic and natural resources, human and non ...
Rural–urban commuting areas ( RUCAs) categorize U.S. census tracts based on measures of urbanization, population density, and daily commuting. RUCA codes range from urban (1) to highly rural (10). RUCAs are a classification scheme that use the standard Census Bureau urban area definitions in combination with commuting information to ...
Under the recommendation of the Seventh Central Pay Commission, the CCA classification was abolished in 2008. The earlier HRA classification of cities was changed from A-1 to X; A, B-1, and B-2 to Y; and C and unclassified cities to Z. [2] [3] [4] X, Y, and Z are more commonly known as Tier-1, Tier-2, and Tier-3 cities, respectively.