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Encyclopedia > Urban area
Cities with at least a million inhabitants in 2006

An urban area is an area with an increased density of human-created structures in comparison to the areas surrounding it. This term is at one end of the spectrum of suburban and rural areas. An urban area is more frequently called a city or town. Image File history File links Size of this preview: 800 × 351 pixelsFull resolution (1425 × 625 pixel, file size: 64 KB, MIME type: image/png)This bubble map shows the global distribution of top 400 cities with atleast 1,000,000 inhabitants in 2006. ... Image File history File links Size of this preview: 800 × 351 pixelsFull resolution (1425 × 625 pixel, file size: 64 KB, MIME type: image/png)This bubble map shows the global distribution of top 400 cities with atleast 1,000,000 inhabitants in 2006. ... Population density per square kilometre by country, 2006 Population density map of the world in 1994. ... “Suburbia” redirects here. ... Sign in a rural area in Dalarna, Sweden Qichun, a rural town in Hubei province, China An artists rendering of an aerial view of the Maryland countryside: Jane Frank (Jane Schenthal Frank, 1918-1986), Aerial Series: Ploughed Fields, Maryland, 1974, acrylic and mixed materials on apertured double canvas, 52... Look up city, City in Wiktionary, the free dictionary. ... Ronda, Spain Main street in Bastrop, Texas, United States, a small town A town is a community of people ranging from a few hundred to several thousands, although it may be applied loosely even to huge metropolitan areas. ...


Urban areas are created and further developed by the process of urbanization. Measuring the extent of an urbanized area helps in analyzing population density and urban sprawl, and in determining urban and rural populations(Cubillas 2007). Urban sprawl (also: suburban sprawl) is the spreading out of a city and its suburbs over rural land at the fringe of an urban area. ...


Unlike an urban area, a metropolitan area includes not only the urban area, but also satellite cities plus intervening rural land that is socio-economically connected to the urban core city, typically by employment ties through commuting, with the urban core city being the primary labor market. This makes metropolitan areas a less relevant statistic for determining per capita land usage and densities(Dumlao & Felizmenio 1976). This article does not cite any references or sources. ... Satellite cities are smaller municipalities that are adjacent to a major city which is the core of a metropolitan area. ... Sign in a rural area in Dalarna, Sweden Qichun, a rural town in Hubei province, China An artists rendering of an aerial view of the Maryland countryside: Jane Frank (Jane Schenthal Frank, 1918-1986), Aerial Series: Ploughed Fields, Maryland, 1974, acrylic and mixed materials on apertured double canvas, 52... This article is about work. ... Commuters on the New York City Subway during rush hour Rush hour at Shinjuku Station, Yamanote Line Traffic jam Commuting is the process of travelling between a place of residence and a place of work. ...

Contents

Definitions

Definitions vary somewhat amongst different nations. The minimum density requirement is generally 400 persons per square kilometer[citation needed]. In Australia, urban areas are referred to as "urban centres" and are defined as population clusters of 1000 or more people, with a density of 200 or more persons per square kilometre.[1] In Japan urbanized areas are defined as contiguous areas of densely inhabited districts (DIDs) using census enumeration districts as units with a density requirement of 4,000 people per square kilometer. European countries define urbanized areas on the basis of urban-type land use, not allowing any gaps of typically more than 200 meters, and use satellite photos instead of census blocks to determine the boundaries of the urban area. In less developed countries, in addition to land use and density requirements, a requirement that a large majority of the population, typically 75%, is not engaged in agriculture and/or fishing is sometimes used. Statistics New Zealand defines New Zealand urban areas for statistical purposes as a settlement with a population of a thousand people or more. Image:1870 census Lindauer Weber 01. ... For other uses, see Europe (disambiguation). ... Land use is the pattern of construction and activity land is used for. ... In the broadest sense, remote sensing is the measurement or acquisition of information of an object or phenomenon, by a recording device that is not in physical or intimate contact with the object. ... Statistics New Zealand (Te Tari Tatau) is a New Zealand government department, and the source of the countrys official statistics. ... Statistics New Zealand defines New Zealand urban areas for statistical purposes. ...

Image File history File links Gnome-globe. ...

Canada

In Canada, an urban area is an area that has more than 400 people per square kilometre and has more than 1,000 people. If two or more urban areas are within two kilometres of each other, they are merged into a single urban area. The boundaries of an urban area are not influenced by municipal or even provincial boundaries.[2]


China

In China, an urban area is an urban district, city and town with a population density higher than 1,500 persons per square kilometre. As for urban districts with a population density lower than 1,500 persons per square kilometre, only the population that lives in streets, town sites, and adjacent villages is counted as urban population[3].


France

In France, an urban area is a zone (aire urbaine) encompassing an area of built-up growth (called an "urban unit" (unité urbaine)[4] - close in definition to the North American urban area) and its commuter belt (couronne périurbaine). Although the official INSEE translation of aire urbaine is "urban area"[5], most North Americans would find the same as being similar in definition to their metropolitan area. In France an aire urbaine (literally: urban area) is roughly the equivalent of a US Metropolitan Statistical Area. ... In France an unité urbaine (literally: urban unit) is a statistical area defined by INSEE, the French national statistics office, for the measurement of contiguously built-up areas. ... INSEE is the French abbreviation for the French National Institute for Statistics and Economic Studies (French: Institut National de la Statistique et des Études Économiques). ... In France an aire urbaine (literally: urban area) is roughly the equivalent of a US Metropolitan Statistical Area. ... This article does not cite any references or sources. ...


United States

In the United States there are two categories of urban area. The term urbanized area denotes an urban area of 50,000 or more people. Urban areas under 50,000 people are called urban clusters. Urbanized areas were first delineated in the United States in the 1950 census, while urban clusters were added in the 2000 census. There are 1371 United States Urban Areas & Urban Clusters with more than 10,000 people. All Urban Areas (UAs) and Urban Clusters (UCs) over 10,000 in the United States ...


The US Census Bureau defines an urban area as: "Core census block groups or blocks that have a population density of at least 1,000 people per square mile (386 per square kilometer) and surrounding census blocks that have an overall density of at least 500 people per square mile (193 per square kilometer)." A census block is the smallest geographic unit used by the United States Census Bureau for tabulation of 100-percent data (data collected from all houses, rather than a sample of houses). ...


The concept of Urbanized Areas as defined by the US Census Bureau are often used as a more accurate gauge of the size of a city, since in different cities and states the lines between city borders and the urbanized area of that city are often not the same. For example, the city of Greenville, South Carolina has a city population under 60,000 but an urbanized area over 300,000, while Greensboro, North Carolina has a city population over 200,000 but an urbanized area population of around 270,000--meaning that Greenville is actually "larger" for some intents and purposes, but not for others, such as taxation, local elections, etc. Greenville is the third largest city in the state of South Carolina. ... Greensboro Skyline Greensboro redirects here. ...


See also

Ranked by population Figures are estimates for the usually resident population at 30 June 2005. ... This is a list of all the urban areas of the European Union which have more than 750,000 inhabitants in 2005. ... Urban areas in the United States are defined by the U.S. Census Bureau as contiguous census block groups with a population density of at least 1,000 per square mile (about 400 per square km). ... The urban areas identified below are defined by Statistics Canada with reference to continuous population density, ignoring municipal boundaries. ... Urban culture is the culture of cities. ...

References

  1. ^ 1216.0 - Australian Standard Geographical Classification (ASGC), 2001. Australian Bureau of Statistics. Retrieved on 2007-10-09.
  2. ^ urban area (ua), 2001 census - Geographic Units. Statistics Canada. Retrieved on 2007-10-07.
  3. ^ Scenario Analysis on Urbanization and Rural-Urban Migration in China
  4. ^ (French) Nomenclatures Définitions - Méthodes - Unité urbaine (HTML). Retrieved on 2007-07-20.
  5. ^ (French) Nomenclatures Définitions - Méthodes - Aire urbaine (HTML). Retrieved on 2007-07-07.

Australian Bureau of Statistics logo The Australian Bureau of Statistics (ABS) is the Australian government agency that collects and publishes statistical information about Australia. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 282nd day of the year (283rd in leap years) in the Gregorian calendar. ... Statistics Canada (French: Statistique Canada) is the Canadian federal government department commissioned with producing statistics to help better understand Canada, its population, resources, economy, society, and culture. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 280th day of the year (281st in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 201st day of the year (202nd in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 188th day of the year (189th in leap years) in the Gregorian calendar. ...

External links


  Results from FactBites:
 
Urban area - Wikipedia, the free encyclopedia (550 words)
An urban area is a term used to define an area where there is an increased density of human-created structures in comparison to the areas surrounding it.
Urban areas are created and further developed by the process of urbanization.
Unlike an urban area, a metropolitan area includes not only the urban area, but also satellite cities plus intervening rural land that is socio-economically connected to the urban core city, typically by employment ties through commuting, because it is the labor market.
FHWA - FAPG G 4063.0, Chapter 4, Urban Area Boundaries (777 words)
In areas where paragraph 3b(1) is applicable, the boundaries of the area shall encompass theentire urban place as designated by the Bureau of the Census plus that adjacent area as agreed upon by local officials in cooperation with theState.
In areas where paragraph 3b(2) is applicable, the boundaries of the area shall encompass the entire urbanized area within a State as designated by the Bureau of the Census plus that adjacent area as agreed upon by local officials in cooperation with the State.
Urban area boundaries are fixed primarily for capital project funding and are not to be con fused with boundaries established for the com prehensive, cooperative and continuing urban transportation planning process.
  More results at FactBites »

 
 

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