An urban area is a human settlement with a high population density and an infrastructure of built environment . This is the core of a metropolitan statistical area in the United States, if it contains a population of more than 50,000.
136-414: A slum is a highly populated urban residential area consisting of densely packed housing units of weak build quality and often associated with poverty . The infrastructure in slums is often deteriorated or incomplete, and they are primarily inhabited by impoverished people. Although slums are usually located in urban areas , in some countries they can be located in suburban areas where housing quality
272-500: 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). For 2011 census data there are 5,493 built-up areas, of which 501 are divided into Built-up area sub-divisions (BUASD) for which data is also available. Each built-up area is named algorithmically, using Ordnance Survey place-name data. The ONS has produced census results from urban areas since 1951, since 1981 based upon
408-480: A building at least every 200 m (660 ft) and at least 200 people. To be considered a town or a city ( kaupunki ) for statistical purposes, an urban area must have at least 15,000 people. This is not to be confused with the city / town designation used by municipalities . In France , an urban area ( Fr: aire d'attraction d'une ville ) is a zone encompassing an area of built-up growth (called an "urban unit" ( unité urbaine ) – close in definition to
544-642: A cause for numerous slums in African cities. Poor quality, unpaved streets encourage slums; a 1% increase in paved all-season roads, claims Arimah, reduces slum incidence rate by about 0.35%. Affordable public transport and economic infrastructure empowers poor people to move and consider housing options other than their current slums. A growing economy that creates jobs at rate faster than population growth, offers people opportunities and incentive to relocate from poor slum to more developed neighborhoods. Economic stagnation, in contrast, creates uncertainties and risks for
680-402: A central aspect by residents living in slums when their communities suffer upgrading schemes or when they are resettled to formal housing. For example, it was recently proved that in a small favela in the northeast of Brazil (Favela Sururu de Capote), the migration of dismissed sugar cane factory workers to the city of Maceió (who initiated the self-construction of the favela), has been driven by
816-443: A combination of demographic, social, economic, and political reasons. Common causes include rapid rural-to-urban migration, poor planning, economic stagnation and depression, poverty, high unemployment, informal economy, colonialism and segregation, politics, natural disasters and social conflicts. Rural–urban migration is one of the causes attributed to the formation and expansion of slums. Since 1950, world population has increased at
952-412: A combination of slum removal, slum relocation, slum upgrading, urban planning with citywide infrastructure development, and public housing. The UN defines slums as .... individuals living under the same roof lacking one or more of the following conditions: access to improved water, access to improved sanitation, sufficient living area, housing durability, and security of tenure It is thought that slum
1088-420: A conflict of interest, and politics prevented efforts to remove, relocate or upgrade the slums into housing projects that are better than the slums. Similar dynamics are cited in favelas of Brazil, slums of India, and shanty towns of Kenya. Scholars claim politics also drives rural-urban migration and subsequent settlement patterns. Pre-existing patronage networks, sometimes in the form of gangs and other times in
1224-653: A densely settled core created from census blocks and contiguous qualifying territory that together have at least 2,000 housing units or 5,000 persons." There were 2,646 urban areas identified by the Census Bureau for 2020. 511 of these had a population of 50,000 or more. For the 2000 and 2010 censuses, the Census Bureau differentiated between two kinds of urban areas: urbanized areas and urban clusters. The term urbanized area denoted an urban area of 50,000 or more people. Urban areas under 50,000 people were called urban clusters . Urbanized areas were first delineated in
1360-543: A density requirement of 4,000 inhabitants per square kilometre (10,000/sq mi). Seoul is the largest urban area in South Korea . For the Census of India 2011, the definition of urban area is a place having a minimum population of 5,000 of density 400 persons per square kilometre (1,000/sq mi) or higher, and 75% plus of the male working population employed in non-agricultural activities. Places administered by
1496-657: A far greater rate than the total amount of arable land, even as agriculture contributes a much smaller percentage of the total economy. For example, in India, agriculture accounted for 52% of its GDP in 1954 and only 19% in 2004; in Brazil, the 2050 GDP contribution of agriculture is one-fifth of its contribution in 1951. Agriculture, meanwhile, has also become higher yielding, less disease prone, less physically harsh and more efficient with tractors and other equipment. The proportion of people working in agriculture has declined by 30% over
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#17327811503771632-616: A hay loft above a stable. Eventually a site on Old Nichol Street was built. The 1896 novel A Child of the Jago by Arthur Morrison is set in a fictionalised version of Old Nichol. The clearance of the slum houses of the Old Nichol Street rookery was the result of an energetic campaign by the local incumbent, Reverend Osborne Jay of Holy Trinity, who arrived in the parish in December 1886. Charles Booth had already noted
1768-514: A large majority of the population, typically 75%, is not engaged in agriculture and/or fishing is sometimes used. Since 2000, China 's cities have expanded at an average rate of 10% annually. It is estimated that China's urban population will increase by 292 million people by 2050, when its cities will house a combined population of over one billion. The country's urbanization rate increased from 17.4% to 46.6% between 1978 and 2009. Between 150 and 200 million migrant workers work part-time in
1904-430: A large number of huge cities have started to appear; which means high poverty rates, crime, pollution and congestion. Lack of affordable low-cost housing and poor planning encourages the supply side of slums. The Millennium Development Goals proposes that member nations should make a "significant improvement in the lives of at least 100 million slum dwellers" by 2020. If member nations succeed in achieving this goal, 90% of
2040-469: A minimum of 20 hectares (200,000 m ; 49 acres). Any areas [separated by] less than 200 metres [of non-urban space] are linked to become a single built-up area. Argentina and Japan are countries where the urbanization rate is over 90% while Australia, Brazil, Canada, Chile, Mexico and the United States are countries where the urbanization rate is between 80% and 90%. There are two measures of
2176-533: A mound in the middle of Arnold Circus at the centre of the development, surmounted by an extant bandstand . The estate consists of multistorey brick tenements radiating from the central circus , each of which bears the name of a town or village along the non-tidal reaches of the Thames . For administrative purposes, the estate lay just within the boundaries of the historic parish and (from 1900) Metropolitan Borough of Bethnal Green , which in 1965 became part of
2312-572: A municipal corporation, cantonment board or notified town area committee are automatically considered urban areas. The Census of India 2011 also defined the term "urban agglomeration" as an integrated urban area consisting of a core town together with its "outgrowths" (contiguous suburbs). In Pakistan , an area is a major city and municipality if it has more than 100,000 inhabitants according to census results. Cities include adjacent cantonments . Urbanisation in Pakistan has increased since
2448-441: A mussel which divides the community through gender and age. Alleys and houses were planned to facilitate the working activities, that provided subsistence and livelihood to the community. When resettled, the main reason of changes of formal housing units was due to the lack of possibilities to perform their work in the new houses designed according to formal architecture principles, or even by the distances they had to travel to work in
2584-507: A number of large cities . The largest conurbation is the Rhine-Ruhr region (11 million in 2008 ), including Düsseldorf (the capital of North Rhine-Westphalia ), Cologne , Bonn , Dortmund , Essen , Duisburg , and Bochum . The Netherlands is the 30th-most densely populated country in the world, with 404.6 inhabitants per square kilometre (1,048/sq mi)—or 497 inhabitants per square kilometre (1,287/sq mi) if only
2720-548: A number of sub-lessees. Many of the streets were named after Nichol, and by 1827 the 5-acre (2.0 ha) estate consisted of 237 houses. Henry Mayhew visited Bethnal Green in 1850, and noted for The Morning Chronicle the trades in the area: tailors, costermongers , shoemakers, dustmen, sawyers, carpenters, cabinet makers and silkweavers. In the area, it was noted: Roads were unmade, often mere alleys, houses small and without foundations, subdivided and often around unpaved courts. An almost total lack of drainage and sewerage
2856-641: A population centre remains unchanged from that of an urban area: a population of at least 1,000 people where the density is no fewer than 400 persons per km . Mexico is one of many countries where the urbanization rate is at least 80%. Mexico City , its capital, is the largest urban area in the country. In the United States , the Census Bureau defines urban areas and delineates urban area boundaries after each census. The Bureau defines an urban area as "a statistical geographic entity consisting of
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#17327811503772992-457: A rapid growth of slums. Research in the latest years based on ethnographic studies, conducted since 2008 about slums, published initially in 2017, has found out the primary importance of labour as the main cause of emergence, rural-urban migration, consolidation and growth of informal settlements. It also showed that work has also a crucial role in the self-construction of houses, alleys and overall informal planning of slums, as well as constituting
3128-465: A room with "low going-ons". In Life in London (1821) Pierce Egan used the word in the context of the "back slums" of Holy Lane or St Giles . A footnote defined slum to mean "low, unfrequent parts of the town". Charles Dickens used the word slum in a similar way in 1840, writing "I mean to take a great, London, back-slum kind walk tonight". Slum began to be used to describe bad housing soon after and
3264-452: A slum, but a slum is better than none". Insufficient financial resources and lack of coordination in government bureaucracy are two main causes of poor house planning. Financial deficiency in some governments may explain the lack of affordable public housing for the poor since any improvement of the tenant in slums and expansion of public housing programs involve a great increase in the government expenditure. The problem can also lie on
3400-409: A suburb of another urban area rather than as a self-contained urban entity, or is geographically remote from other urban communities. Accordingly, the new definition set out three distinct types of population centres: small (population 1,000 to 29,999), medium (population 30,000 to 99,999) and large (population 100,000 or greater). Despite the change in terminology, however, the demographic definition of
3536-427: A sustainable formal economy that raise incomes and create opportunities, squalid slums are likely to continue. The World Bank and UN Habitat estimate, assuming no major economic reforms are undertaken, more than 80% of additional jobs in urban areas of developing world may be low-paying jobs in the informal sector. Everything else remaining same, this explosive growth in the informal sector is likely to be accompanied by
3672-522: A tax free savings account for French public. Some slums remain in the early 21st century in France, most of which are dismantled after a few months, the largest being the "Petite Ceinture" slum on the northern Paris decommissioned train tracks. New York City is believed to have created the United States' first slum, named the Five Points in 1825, as it evolved into a large urban settlement. Five Points
3808-547: Is 56.2% urbanized, with roughly one-quarter of the countries reported as greater than 80% urbanized. Data is taken from the U.S. Central Intelligence Agency World Factbook estimates from 2020. According to Demographia, these are the 202 largest urban areas in the world by population (as of 2023): The UN publishes data on cities, urban areas and rural areas, but relies almost entirely on national definitions of these areas. The UN principles and recommendations state that due to different characteristics of urban and rural areas across
3944-933: Is a British slang word from the East End of London meaning "room", which evolved to "back slum" around 1845 meaning 'back alley, street of poor people.' Numerous other non-English terms are often used interchangeably with slum : shanty town , favela , rookery , gecekondu , skid row , barrio , ghetto , banlieue , bidonville, taudis, bandas de miseria, barrio marginal, morro, paragkoupoli, loteamento, barraca, musseque, iskuwater , Inner city , tugurio, solares, mudun safi, kawasan kumuh, karyan, medina achouaia, brarek, ishash, galoos, tanake, baladi, trushchoby , chalis, katras, zopadpattis, ftohogeitonia, basti, estero, looban, dagatan, umjondolo, watta, udukku, and chereka bete. The word slum has negative connotations, and using this label for an area can be seen as an attempt to delegitimize that land use when hoping to repurpose it. Before
4080-446: Is a key characteristic of urban slums. At their start, slums are typically located in undesirable lands near the town or city, that are state owned or philanthropic trust owned or religious entity owned or have no clear land title. Some immigrants regard unoccupied land as land without owners and therefore occupy it. In some cases the local community or the government allots lands to people, which will later develop into slums and over which
4216-493: Is an area with a population of at least 1,000 people where the density is no fewer than 400 persons per square kilometre (1,000/sq mi). If two or more urban areas are within 2 km (1.2 mi) of each other by road, they are merged into a single urban area, provided they do not cross census metropolitan area or census agglomeration boundaries. In the Canada 2011 Census , Statistics Canada redesignated urban areas with
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4352-499: Is cholera; in which swarms of huge and almost countless population, nominally at least, Catholic; haunts of filth, which no sewage committee can reach – dark corners, which no lighting board can brighten. This passage was widely quoted in the national press, leading to the popularization of the word slum to describe bad housing. In France as in most industrialised European capitals, slums were widespread in Paris and other urban areas in
4488-817: Is closely linked to urbanization . In 2008, more than 50% of the world's population lived in urban areas. In China, for example, it is estimated that the population living in urban areas will increase by 10% within a decade according to its current rates of urbanization. The UN-Habitat reports that 43% of urban population in developing countries and 78% of those in the least developed countries are slum dwellers. Some scholars suggest that urbanization creates slums because local governments are unable to manage urbanization, and migrant workers without an affordable place to live in, dwell in slums. Rapid urbanization drives economic growth and causes people to seek working and investment opportunities in urban areas. However, as evidenced by poor urban infrastructure and insufficient housing ,
4624-421: Is considered to be rural by the Census Bureau. The largest urban area in the United States is that of New York City and its surrounding suburbs. The New York– Jersey City – Newark , NY–NJ urban area had a population of 19,426,449 as of 2020, while the larger metropolitan area had a population of 20,140,470, and the combined statistical area had a population of 23,582,649. The next five largest urban areas in
4760-434: Is curious as before 1893, there was no intersection or feature here. One of the roads that link into the circus is the northern end of Club Row, a part of Brick Lane market, well known as an animal market until this activity was closed down in 1983. The flats remain and are Grade II listed , together with the bandstand. In their day, they were revolutionary in their provision of facilities for residents. Today, despite
4896-686: Is divided into 5 regions for planning purposes by the URA, even though as a city state Singapore is defined as a single continuous urban area. It is further subdivided into 55 urban planning areas , which acts as the boundaries of planned towns within the country. In Vietnam , there are six types of urban areas: Bangkok is the largest urban area in Thailand . As in other Nordic countries , an urban area ( taajama in Finnish ) in Finland must have
5032-491: Is generally considered the locale where the term originated in the 19th century, where massive and rapid urbanization of the dockside and industrial areas led to intensive overcrowding in a warren of post-medieval streetscape. The suffering of the poor was described in popular fiction by moralist authors such as Charles Dickens – most famously Oliver Twist (1837-9) and echoed the Christian Socialist values of
5168-550: Is highly urbanized. The ten largest metropolitan areas account for half of the population, and fewer than one in ten live in rural areas. About 3 million people live in Buenos Aires City and the Greater Buenos Aires metropolitan area totals around 15 million, making it one of the largest urban areas in the world, with a population of 18 million all up. Córdoba has around 1.5 million people living in
5304-431: Is low and living conditions are poor. While slums differ in size and other characteristics, most lack reliable sanitation services, supply of clean water , reliable electricity, law enforcement , and other basic services. Slum residences vary from shanty houses to professionally built dwellings which, because of poor-quality construction or lack of basic maintenance, have deteriorated. Due to increasing urbanization of
5440-952: Is one of the most urbanised countries in the world, with more than 50% of the population residing in Australia's three biggest urban centres. Statistics New Zealand defines urban areas in New Zealand, which are independent of any administrative subdivisions and have no legal basis. There are four classes of urban area: major urban areas (population 100,000+), large urban areas (population 30,000–99,999), medium urban areas (population 10,000–29,999) and small urban areas (population 1,000–9,999). As of 2021, there are 7 major urban areas, 13 large urban areas, 22 medium urban areas and 136 small urban areas. Urban areas are reclassified after each New Zealand census , so population changes between censuses does not change an urban area's classification. According to Statistics Canada , an urban area in Canada
5576-580: Is poor. Urban informal sector is between 20 and 60% of most developing economies' GDP; in Kenya, 78 per cent of non-agricultural employment is in the informal sector making up 42 per cent of GDP. In many cities the informal sector accounts for as much as 60 per cent of employment of the urban population. For example, in Benin, slum dwellers comprise 75 per cent of informal sector workers, while in Burkina Faso,
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5712-399: Is that part of an economy that is neither registered as a business nor licensed, one that does not pay taxes and is not monitored by local, state, or federal government. Informal economy grows faster than formal economy when government laws and regulations are opaque and excessive, government bureaucracy is corrupt and abusive of entrepreneurs, labour laws are inflexible, or when law enforcement
5848-506: Is the largest city by population and area, with a population of 19.10 million. In Bangladesh , there are total 11 City Corporations and 329 Municipal Corporations and 203 Small towns , which serves as the center for Upazilas . According to 2011 population census, Bangladesh has an urban population of 28%, with a growth rate of 2.8%. At this growth rate, it is estimated that the urban population of Bangladesh will reach 79 million or 42% of total population by 2035. In 2020, 54 percent of
5984-541: The East End of London . The estate, constructed from 1890, was one of the earliest social housing schemes built by a local government authority. It was built on the site of the demolished Friars Mount rookery in the Old Nichol , with works begun by the Metropolitan Board of Works in 1893 and completed by the recently formed London County Council . Soil from the foundations was used to construct
6120-512: The Lebanese Civil War from 1975 to 1990. Similarly, in recent years, numerous slums have sprung around Kabul to accommodate rural Afghans escaping Taliban violence. Major natural disasters in poor nations often lead to migration of disaster-affected families from areas crippled by the disaster to unaffected areas, the creation of temporary tent city and slums, or expansion of existing slums. These slums tend to become permanent because
6256-620: The Little Italy and Chinatown neighborhoods of New York City, through that city's campaign of massive urban renewal . Five Points was not the only slum in America. Jacob Riis , Walker Evans , Lewis Hine and others photographed many before World War II. Slums were found in every major urban region of the United States throughout most of the 20th century, long after the Great Depression. Most of these slums had been ignored by
6392-576: The Metropolitan Board of Works . The powers the vestries and board were limited to the Torrens Act and the Artisans' and Labourers' Dwellings Improvement Act 1875 (Cross Act) which the Bethnal Green vestry refused to use. Jay persuaded Arthur Morrison to visit the area, and the result was the influential A Child of the Jago , a barely fictionalised account of the life of a child in
6528-565: The U.S. Department of Agriculture 's natural resources inventory , urban areas are officially known as developed areas or urban and built-up areas. Such areas include cities, ethnic villages, other built-up areas of more than 10 ac (4 ha), industrial sites, railroad yards, cemeteries, airports, golf courses, shooting ranges, institutional and public administration sites, and similar areas. The 1997 national resources inventory placed over 98,000,000 ac (40,000,000 ha) in this category, an increase of 25,000,000 ac (10,000,000 ha) since 1982. Argentina
6664-428: The urban revolution of the 4th millennium BCE led to the formation of human civilization and ultimately to modern urban planning , which along with other human activities such as exploitation of natural resources has led to a human impact on the environment . In 1950, 764 million people or about 30 percent of the world's 2.5 billion people lived in urban areas. By 2014, it was 3.9 billion or about 53 percent of
6800-595: The 1940s, when the British government started slum clearance and built new council houses . There are still examples left of slum housing in the UK, but many have been removed by government initiative, redesigned and replaced with better public housing. In Europe, slums were common. By the 1920s it had become a common slang expression in England, meaning either various taverns and eating houses, "loose talk" or gypsy language, or
6936-439: The 19th century, many of which continued through first half of the 20th century. The first cholera epidemic of 1832 triggered a political debate, and Louis René Villermé study of various arrondissements of Paris demonstrated the differences and connection between slums, poverty and poor health. Melun Law first passed in 1849 and revised in 1851, followed by establishment of Paris Commission on Unhealthful Dwellings in 1852 began
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#17327811503777072-423: The 19th century, rich and poor people lived in the same districts, with the wealthy living on the high streets, and the poor in the service streets behind them. But in the 19th century, wealthy and upper-middle-class people began to move out of the central part of rapidly growing cities, leaving poorer residents behind. Slums were common in the United States and Europe before the early 20th century. London's East End
7208-581: The Bethnal Green Improvement Scheme displaced 5,719 people and demolished 730 houses. Originally it was planned as a series of rectangular plots, but in 1893 a radial plan that would house a greater number of people was approved. Owen Fleming designed the Boundary Street scheme. He retained only Boundary Street in the west and Mount Street in the east, though he widened both to 40 ft (12 m). Old Nichol Street
7344-487: The Boundary Estate in 1914, from nearby Brick Lane and attended Rochelle Street School. At that time, 90% of children attending the school spoke Yiddish . Tower Hamlets Council has made proposals to transfer the estate to a housing association , and upgrade the accommodation. A full refurbishment of one of the blocks, Iffley House was carry out by Sprunt Architects to demonstrate how this might be achieved but
7480-486: The Central African Republic, Chad and Ethiopia, they make up 90 per cent of the informal labour force. Slums thus create an informal alternate economic ecosystem, that demands low paid flexible workers, something impoverished residents of slums deliver. In other words, countries where starting, registering and running a formal business is difficult, tend to encourage informal businesses and slums. Without
7616-610: The North American urban area) and its commuter belt ( couronne ). Americans would find the INSEE definition of the urban area to be similar to their metropolitan area . The largest cities in France, in terms of urban area population (2017), are Paris (12,628,266), Lyon (2,323,221), Marseille (1,760,653), Toulouse (1,360,829), Bordeaux (1,247,977), Lille (1,191,117), Nice (1,006,201), Nantes (972,828), Strasbourg (790,087) and Rennes (733,320). Germany has
7752-672: The Northern and Western ones. Urban areas in Sweden ( tätorter ) are statistically defined localities, totally independent of the administrative subdivision of the country. There are 1,956 such localities in Sweden , with a population ranging from 200 to 1,372,000 inhabitants. 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
7888-617: The Philippine population lived in urban areas. With an estimated population of 16.3 million, Metro Manila is the most populous metropolitan area in the Philippines and the 11th in the world . However, the greater urban area is the 5th largest in the world with a population of 20,654,307 people (2010 estimate). As an island city-state , about 5.6 million people live and work within 700 square kilometres (270 sq mi). With 64 islands and islets , Singapore Island makes up
8024-407: The U.S. are those of Los Angeles , Chicago , Miami , Houston , and Dallas . 80.0 percent of the population of the United States lives within the boundaries of an urban area as of the 2020 census. The concept of Urbanized Areas as defined by the U.S. Census Bureau is 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
8160-565: The United States in the 1950 census, while urban clusters were added in the 2000 census. The distinction between urbanized areas and urban clusters was removed for the 2020 census. 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 not cities, counties, or county-equivalents, urban area boundaries may consist of partial areas of these political units. Urban areas are distinguished from rural areas : any area not part of an urban area
8296-432: The bottom of flood prone valleys, often hidden from the plain view of downtown but close to some natural water source. In cities located near lagoons, marshlands and rivers, they start on banks or on stilts above water or the dry river bed; in flat terrain, slums begin on lands unsuitable for agriculture, near city trash dumps, next to railway tracks, and other shunned undesirable locations. These strategies shield slums from
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#17327811503778432-402: The boundaries of these towns. This distinction may give a misleading impression in some cases, since some localities with only village status may have acquired larger and denser populations than many many smaller towns with most excessive example of Poznań , most spread urban area of the country with population of the city app. 534 thousand and metropolitan area around 1 million inhabitants. On
8568-621: The capital and largest city of Russia , has a population estimated at 12.4 million residents within the city limits, while over 17 million residents in the urban area, and over 20 million residents in the Moscow Metropolitan Area . It is among the world's largest cities , being the most populous city entirely within Europe , the most populous urban area in Europe, the most populous metropolitan area in Europe, and also
8704-480: The church serving the Nichol, quoted by Frederick Engels , stated that in 1844 "conditions were far worse than in a northern industrial parish, that population density was 8.6 people to a (small) house, and that there were 1,400 houses in an area less than 400 yd (370 m) square"; and in 1861 John Hollingshead , of The Morning Post , in his Ragged London noted that the Nichol had grown even more squalid in
8840-676: The cities and states which encompassed them until the 1960s' War on Poverty was undertaken by the Federal government of the United States. A type of slum housing, sometimes called poorhouses, crowded Boston Common , later at the fringes of the city. Rio de Janeiro documented its first slum in 1920 census. By the 1960s, over 33% of population of Rio lived in slums, 45% of Mexico City and Ankara , 65% of Algiers , 35% of Caracas , 25% of Lima and Santiago , 15% of Singapore . By 1980, in various cities and towns of Latin America alone, there were about 25,000 slums. Slums sprout and continue for
8976-472: The city, and often not recognized by the city or state governments. Urban area Urban areas originate through urbanization , and researchers categorize them as cities, towns, conurbations or suburbs . In urbanism , the term "urban area" contrasts to rural areas such as villages and hamlets ; in urban sociology or urban anthropology it contrasts with natural environment . The development of earlier predecessors of modern urban areas during
9112-486: The concept of the "urban area" used in road safety statistics. This term was first created by Geographer Brian Manning. The last concept is also known as " built-up area in road safety ". According to the definition by the Office for National Statistics , "Built-up areas are defined as land which is 'irreversibly urban in character', meaning that they are characteristic of a town or city. They include areas of built-up land with
9248-624: The creation of charitable trusts such as the Peabody Trust founded in 1862 and Joseph Rowntree Foundation (1904) which still operate to provide decent housing today. Slums are often associated with Victorian Britain , particularly in industrial English towns, lowland Scottish towns and Dublin City in Ireland. Friedrich Engels described these British neighborhoods as "cattle-sheds for human beings". These were generally still inhabited until
9384-404: The degree of urbanization of a population. The first, urban population, describes the percentage of the total population living in urban areas, as defined by the country. The second measure, rate of urbanization, describes the projected average rate of change of the size of the urban population over the given period of time. According to Urbanization by sovereign state article, the world as a whole
9520-426: The distance between each building has to be of less than 50 m, although exceptions are made due to parks, industrial areas, rivers, and similar. Groups of houses less than 400 m from the main body of an urban area are included in the urban area. In Poland , official "urban" population figures simply refer to those localities which have the status of towns ( miasta ). The "rural" population is that of all areas outside
9656-721: The dwellers don't have property rights . Informal land tenure also includes occupation of land belonging to someone else. According to Flood, 51 percent of slums are based on invasion of private land in sub-Saharan Africa , 39 percent in North Africa and West Asia , 10 percent in South Asia, 40 percent in East Asia , and 40 percent in Latin America and the Caribbean . In some cases, once the slum has many residents,
9792-456: The early residents form a social group, an informal association or a gang that controls newcomers, charges a fee for the right to live in the slums, and dictates where and how new homes get built within the slum. The newcomers, having paid for the right, feel they have commercial right to the home in that slum. The slum dwellings, built as the slum grows, are constructed without checking land ownership rights or building codes, are not registered with
9928-410: The existence of transport costs implies that the best locations for a firm will be those with easy access to markets, and the best locations for workers, those with easy access to goods. The concentration is the result of a self-reinforcing process of agglomeration. Concentration is a common trend of the distribution of population. Urban growth is dramatically intense in the less developed countries, where
10064-420: The existing urban slums. According to Ali and Toran, social networks might also explain rural–urban migration and people's ultimate settlement in slums. In addition to migration for jobs, a portion of people migrate to cities because of their connection with relatives or families. Once their family support in urban areas is in slums, those rural migrants intend to live with them in slums The formation of slums
10200-563: The extent of irreversible urban development indicated on Ordnance Survey maps. The definition is an extent of at least 20 ha and at least 1,500 census residents. Separate areas are linked if less than 200 m (220 yd) apart. Included are transportation features. The UK has five Urban Areas with a population over a million and a further sixty nine with a population over one hundred thousand . The Australian Bureau of Statistics refers to urban areas as Urban Centres, which it generally defines as population clusters of 1,000 or more people. Australia
10336-486: The extreme poverty in the area in his study of London poverty. Nearly 6,000 individuals were crammed into the packed streets. The death rate was twice that of the rest of Bethnal Green , and four times that of London. One child in four died before their first birthday. Redevelopment had been resisted by members of the Bethnal Green vestry , who owned much of the rookery, and were responsible for electing members of
10472-435: The failure in coordination among different departments in charge of economic development, urban planning , and land allocation. In some cities, governments assume that the housing market will adjust the supply of housing with a change in demand. However, with little economic incentive, the housing market is more likely to develop middle-income housing rather than low-cost housing. The urban poor gradually become marginalized in
10608-421: The foreign owned tanneries and other polluting industries near Dharavi. To live, the poor built shanty towns within easy commute to work. By 1947, the year India became an independent nation of the commonwealth, Dharavi had blossomed into Bombay's largest slum. Similarly, some of the slums of Lagos , Nigeria sprouted because of neglect and policies of the colonial era. During apartheid era of South Africa , under
10744-438: The form of political parties or social activists, inside slums seek to maintain their economic, social and political power. These social and political groups have vested interests to encourage migration by ethnic groups that will help maintain the slums, and reject alternate housing options even if the alternate options are better in every aspect than the slums they seek to replace. Millions of Lebanese people formed slums during
10880-847: The general populace, slums became common in the 19th to late 20th centuries in the United States and Europe. Slums are still predominantly found in urban regions of developing countries , but are also still found in developed economies. The world's largest slum city is found in Orangi in Karachi , Pakistan. Slums form and grow in different parts of the world for many different reasons. Causes include rapid rural-to-urban migration , economic stagnation and depression, high unemployment, poverty, informal economy, forced or manipulated ghettoization, poor planning, politics, natural disasters, and social conflicts. Strategies tried to reduce and transform slums in different countries, with varying degrees of success, include
11016-403: The globe, a global definition is not possible. European countries define urbanized areas on the basis of urban-type land use , not allowing any gaps of typically more than 200 metres (220 yd), and use satellite imagery 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
11152-434: The high land price forces some people to look for and construct cheap informal settlements , which are known as slums in urban areas. The transformation of agricultural land also provides surplus labour , as peasants have to seek jobs in urban areas as rural-urban migrant workers . Many slums are part of economies of agglomeration in which there is an emergence of economies of scale at the firm level, transport costs and
11288-631: The housing market where few houses are built to sell to them. Some of the slums in today's world are a product of urbanization brought by colonialism . For instance, the Europeans arrived in Kenya in the nineteenth century and created urban centers such as Nairobi mainly to serve their financial interests. They regarded the Africans as temporary migrants and needed them only for supply of labour . The housing policy aiming to accommodate these workers
11424-645: The housing of the working classes from the Metropolitan Board of Works . In the first election, the progressives obtained a large majority. The Housing Committee secured from Parliament the Housing of the Working Classes Act 1890 ( 53 & 54 Vict. c. 70), which gave it powers to implement the Torrens and Cross acts, and gave legal basis for it to manage housing estates. LCC chose Boundary Street as their flagship scheme. Initially they attempted to get
11560-431: The increasingly competitive job markets, which leads to their financial shortage. Many cities, on the other hand, do not provide enough low-cost housing for a large number of rural-urban migrant workers. Some rural–urban migrant workers cannot afford housing in cities and eventually settle down in only affordable slums. Further, rural migrants, mainly lured by higher incomes, continue to flood into cities. They thus expand
11696-431: The lack of some modern amenities they remain popular with tenants and there is an active community. Streatley Buildings were demolished in 1971. These were the first dwellings on the Boundary Estate, on the east side. They were spartan larger flats erected 1893-4. The 1870 Elementary Education Act made it compulsory for all children between the ages of five and twelve to be given a basic education at public expense. This
11832-494: The land area is counted. The Randstad is the country's largest conurbation located in the west of the country and contains the four largest cities: Amsterdam, Rotterdam , The Hague , and Utrecht . The Randstad has a population of 7 million inhabitants and is the 6th largest metropolitan area in Europe. Norway defines urban areas ("tettsteder") similarly to the other Nordic countries . Unlike in Denmark and Sweden,
11968-729: The land where slums occupied as undeveloped land. Another type of urbanization does not involve economic growth but economic stagnation or low growth, mainly contributing to slum growth in Sub-Saharan Africa and parts of Asia . This type of urbanization involves a high rate of unemployment , insufficient financial resources and inconsistent urban planning policy. In these areas, an increase of 1% in urban population will result in an increase of 1.84% in slum prevalence. Urbanization might also force some people to live in slums when it influences land use by transforming agricultural land into urban areas and increases land value. During
12104-525: The largest city by land area on the European continent. Saint Petersburg , the cultural capital, is the second-largest city, with a population of roughly 5.4 million inhabitants. Other major urban areas are Yekaterinburg , Novosibirsk , Kazan , Nizhny Novgorod , and Chelyabinsk . Spain is a very highly urbanized country. Madrid is its largest urban area. The Southern and Eastern coasts with Barcelona , Valencia and Málaga are more urbanised than
12240-664: The largest slums in India , used to be a village referred to as Koliwadas, and Mumbai used to be referred as Bombay. In 1887, the British colonial government expelled all tanneries, other noxious industry and poor natives who worked in the peninsular part of the city and colonial housing area, to what was back then the northern fringe of the city – a settlement now called Dharavi. This settlement attracted no colonial supervision or investment in terms of road infrastructure, sanitation , public services or housing. The poor moved into Dharavi, found work as servants in colonial offices and homes and in
12376-617: The largest urban area in the country. According to the United Nations Economic and Social Commission for Asia and the Pacific , the country has the highest urbanised population in Southeast Asia, with 100 percent of its population living in an urban area. The Urban Redevelopment Authority (URA) is responsible for the urban land-use planning, which designates land use and urban density of the country. The country
12512-508: The last 20 years as old houses decayed and traditional trades became masks for thieves and prostitutes. The Builder in 1863, noted the numbers inhabiting unfit cellars, the lack of sanitation and that running water was only available for 10–12 minutes each day. For ecclesiastical purposes, the Old Nichol was part of the parish of Holy Trinity, Shoreditch from 1866. However, there was no church building and services were instead held in
12648-490: The last 50 years, while global population has increased by 250%. Many people move to urban areas primarily because cities promise more jobs, better schools for poor's children, and diverse income opportunities than subsistence farming in rural areas . For example, in 1995, 95.8% of migrants to Surabaya , Indonesia reported that jobs were their primary motivation for moving to the city. However, some rural migrants may not find jobs immediately because of their lack of skills and
12784-633: The local governments sometimes are unable to manage this transition. This incapacity can be attributed to insufficient funds and inexperience to handle and organize problems brought by migration and urbanization. In some cases, local governments ignore the flux of immigrants during the process of urbanization. Such examples can be found in many African countries. In the early 1950s, many African governments believed that slums would finally disappear with economic growth in urban areas. They neglected rapidly spreading slums due to increased rural-urban migration caused by urbanization. Some governments, moreover, mapped
12920-422: The major cities, returning home to the countryside periodically with their earnings. China has more cities with one million or more long-term residents than any other country, including the three global cities of Beijing , Hong Kong, and Shanghai ; by 2025, the country will be home to 221 cities with over a million inhabitants. The figures in the table below are from the 2008 census, and are only estimates of
13056-513: The majority of the world's population lived in a city. By that time a high estimate calculated up to 3.5 million square kilometers of land were urban, estimates ranging from 1% of global land area. In 2014 there were 7.3 billion people living on the planet, of which the global urban population comprised 3.9 billion. The Population Division of the United Nations Department of Economic and Social Affairs at that time predicted
13192-399: The mobility of the industrial labour force. The increase in returns of scale will mean that the production of each good will take place in a single location. And even though an agglomerated economy benefits these cities by bringing in specialization and multiple competing suppliers, the conditions of slums continue to lag behind in terms of quality and adequate housing. Alonso-Villar argues that
13328-484: The most urbanised nation in South Asia. Furthermore, 50% of Pakistanis live in towns of 5,000 people or more. Karachi is the most populated city in Pakistan closely followed by Lahore according to the 2017 Census . In Bangladesh , there are total 532 urban areas, which are divided into three categories. Those are City Corporation , Municipal Corporation (Pourasova) and Upazila town . Among those urban areas, Dhaka
13464-404: The necessity to find a job in the city. The same observation was noticed on the new migrants who contribute to the consolidation and growth of the slum. Also, the choice of the terrain for the construction of the favela (the margins of a lagoon) followed the rationale that it could offer conditions to provide them means of work. Circa 80% of residents living in that community live from the fishery of
13600-455: The new London Borough of Tower Hamlets. For ecclesiastical purposes, it lay within the parish of Holy Trinity, Shoreditch , created in 1866. The estate's name reflects its borderline location. In 1680 John Nichol of Gray's Inn , who had built seven houses here, leased 4.75 acres (1.92 ha) of gardens for 180 years to a London mason, Jon Richardson, with permission to dig for bricks. The land became built up piecemeal with houses, built by
13736-532: The new tenants were clerks, policemen, cigarmakers and nurses. Such was the success of the campaign, that the Prince of Wales officially opened the estate in early March 1900, saying Few indeed will forget this site who had read Mr Morrison's A Child of the Jago, and all of us are familiar with the labours of that most excellent philanthropist, Mr. Jay, in this neighbourhood . The impresarios and brothers Lew Grade and Bernard Delfont (born Winogradsky) moved to
13872-437: The new term " population centre "; the new term was chosen in order to better reflect the fact that urban vs. rural is not a strict division, but rather a continuum within which several distinct settlement patterns may exist. For example, a community may fit a strictly statistical definition of an urban area, but may not be commonly thought of as "urban" because it has a smaller population, or functions socially and economically as
14008-421: The only option for the urban poor. Many local and national governments have, for political interests, subverted efforts to remove, reduce or upgrade slums into better housing options for the poor. Throughout the second half of the 19th century, for example, French political parties relied on votes from slum population and had vested interests in maintaining that voting block. Removal and replacement of slum created
14144-414: The original slums valuable property, densely populated with many conveniences attractive to the poor. At their start, slums are typically located in the least desirable lands near the town or city, that are state owned, are part of a philanthropic trust, possessed by a religious entity, or have no clear land title. In cities located in mountainous terrain, slums begin on difficult to reach slopes or start at
14280-530: The other hand, the Katowice urban area with numerous large and medium cities covers 1,468 km and has above 2 million people. The metropolitan areas in Poland are the biggest urban zones (e.g. Katowice metropolitan area , Łódź metropolitan area and Szczecin metropolitan area ) and have great impact on the rural surroundings, as it is around Lublin , Radom , Kielce , Tarnów and Białystok . Moscow ,
14416-492: The poor rely on. Established old slums, surrounded by the formal city infrastructure, cannot expand horizontally; therefore, they grow vertically by stacking additional rooms, sometimes for a growing family and sometimes as a source of rent from new arrivals in slums. Some slums name themselves after founders of political parties, locally respected historical figures, current politicians or a politician's spouse to garner political backing against eviction. Informality of land tenure
14552-493: The poor, encouraging people to stay in the slums. Economic stagnation in a nation with a growing population reduces per capita disposal income in urban and rural areas, increasing urban and rural poverty. Rising rural poverty also encourages migration to urban areas. A poorly performing economy, in other words, increases poverty and rural-to-urban migration, thereby increasing slums. Many slums grow because of growing informal economy which creates demand for workers. Informal economy
14688-448: The poor, rural people leaving farms for opportunity, and the persecuted people from Europe pouring into New York City. Bars, bordellos, squalid and lightless tenements lined its streets. Violence and crime were commonplace. Politicians and social elite discussed it with derision. Slums like Five Points triggered discussions of affordable housing and slum removal. As of the start of the 21st century, Five Points slum had been transformed into
14824-437: The pretext of sanitation and plague epidemic prevention, racial and ethnic group segregation was pursued, people of colour were moved to the fringes of the city, policies that created Soweto and other slums – officially called townships. Large slums started at the fringes of segregation-conscious colonial city centers of Latin America. Marcuse suggests ghettoes in the United States, and elsewhere, have been created and maintained by
14960-670: The private sector involved but failed. In 1893, on the back of the Blackwall Tunnel Act 1892 they gained permission from the Home Secretary to rebuild a small section of the scheme. The principle had been established. The newly established London County Council (LCC) decided to rebuild an area of some 15-acre (6.1 ha), including the Nichol and Snow estates, and a small piece on the Shoreditch side of Boundary Street, formerly Cock Lane. What became known as
15096-430: The process of urbanization, some agricultural land is used for additional urban activities. More investment will come into these areas, which increases the land value. Before some land is completely urbanized, there is a period when the land can be used for neither urban activities nor agriculture. The income from the land will decline, which decreases the people's incomes in that area. The gap between people's low income and
15232-584: The proposal was rejected by a ballot of tenants in November 2006. The estate radiates from a centrepiece roundabout, Arnold Circus, formed around a garden with a bandstand . It is now being preserved by the Friends of Arnold Circus and has received grants for regeneration. Restoration work on the bandstand was completed in 2010. Arnold Circus is also a mark point on several ley alignments including Alfred Watkins ' "Strand Ley" and "The Coronation Line", which
15368-533: The residents do not want to leave, as in the case of slums near Port-au-Prince after the 2010 Haiti earthquake , and slums near Dhaka after 2007 Bangladesh Cyclone Sidr . Slums typically begin at the outskirts of a city. Over time, the city may expand past the original slums, enclosing the slums inside the urban perimeter. New slums sprout at the new boundaries of the expanding city, usually on publicly owned lands, thereby creating an urban sprawl mix of formal settlements, industry, retail zones and slums. This makes
15504-581: The risk of being noticed and removed when they are small and most vulnerable to local government officials. Initial homes tend to be tents and shacks that are quick to install, but as a slum grows, becomes established and newcomers pay the informal association or gang for the right to live in the slum, the construction materials for the slums switches to more durable materials such as bricks and concrete, suitable for slum's topography. The original slums, over time, get established next to centers of economic activity, schools, hospitals, and sources of employment, which
15640-456: The same number of people, but the occupiers changed. The original inhabitants were forced further to the East, creating new overcrowding and new slums in areas such as Dalston and Bethnal Green . No help was offered to those displaced to find new accommodation, and this added to the suffering and misery of many of the former residents of the slum. The new blocks had policies to enforce sobriety and
15776-499: The segregationist policies of the state and regionally dominant group. Social exclusion and poor infrastructure forces the poor to adapt to conditions beyond his or her control. Poor families that cannot afford transportation, or those who simply lack any form of affordable public transportation, generally end up in squat settlements within walking distance or close enough to the place of their formal or informal employment. Ben Arimah cites this social exclusion and poor infrastructure as
15912-419: The slum where they originally lived, which was in turn faced by residents by self-constructing spaces to shelter the work originally performed in the slum, in the formal housing units. Similar observations were made in other slums. Residents also reported that their work constitutes their dignity, citizenship, and self-esteem in the underprivileged settings in which they live. The reflection of this recent research
16048-595: The slum, re-christened by Morrison as The Jago : "What was too vile for Kate Street, Seven Dials , and Ratcliffe Highway in its worst day, what was too useless, incapable and corrupt — all that teemed on the Old Jago". Demolition actually began before the publication of the book. The London County Council was created by the Local Government (England and Wales) Act 1888 , some 53 years after other major cities had been municipalised. It took responsibility for
16184-649: The social process of identifying the worst housing inside slums, but did not remove or replace slums. After World War II , French people started mass migration from rural to urban areas of France. This demographic and economic trend rapidly raised rents of existing housing as well as expanded slums. French government passed laws to block increase in the rent of housing, which inadvertently made many housing projects unprofitable and increased slums. In 1950, France launched its Habitation à Loyer Modéré initiative to finance and build public housing and remove slums, managed by techniciens – urban technocrats., and financed by Livret A –
16320-571: The time of independence and has several different causes. The majority of southern Pakistan's population lives along the Indus River . Karachi is its most populous city. In the northern half of the country, most of the population lives in an arc formed by the cities of Lahore , Faisalabad , Rawalpindi , Islamabad , Gujranwala , Sialkot , Gujrat , Jhelum , Sargodha , Sheikhupura , Nowshera , Mardan and Peshawar . During 1990–2008, city dwellers made up 36% of Pakistan's population, making it
16456-530: The time, which soon found legal expression in the Public Health Act of 1848 . As the slum clearance movement gathered pace, deprived areas such as Old Nichol were fictionalised to raise awareness in the middle classes in the form of moralist novels such as A Child of the Jago (1896) resulting in slum clearance and reconstruction programmes such as the Boundary Estate (1893-1900) and
16592-471: The urban area, while Rosario , Mendoza and Tucumán have around 1.2 million inhabitants each and La Plata , Mar del Plata , Salta and Santa Fe have at least 500,000 people each. Old Nichol 51°31′34″N 0°04′26″W / 51.526°N 0.074°W / 51.526; -0.074 The Boundary Estate is a housing development in the London Borough of Tower Hamlets , in
16728-470: The urban population would occupy 68% of the world population by 2050, with 90% of that growth coming from Africa and Asia. Urban areas are created and further developed by the process of urbanization. They are measured for various purposes, including analyzing population density and urban sprawl . Urban areas are also mostly found in the United States , Canada , Brazil , Mexico , Argentina , Chile , Japan and Australia and many other countries where
16864-492: The urban populations within administrative city limits; a different ranking exists when considering the total municipal populations (which includes suburban and rural populations). The large " floating populations " of migrant workers make conducting censuses in urban areas difficult; the figures below include only long-term residents. In Japan , urbanized areas are defined as contiguous areas of densely inhabited districts (DIDs) using census enumeration districts as units with
17000-435: The urbanization rate is over 80%. 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. The concept of an "urban area" as used in economic statistics should not be confused with
17136-474: The urbanized area of that city are often not the same. For example, the city of Greenville, South Carolina has a city population just over 68,000 and an urbanized area population of around 400,000, while Greensboro, North Carolina has a city population just over 285,000 and an urbanized area population of around 300,000 — meaning that Greenville is actually "larger" for some intents and purposes, but not for others, such as taxation, local elections, etc. In
17272-419: The world total slum dwellers may remain in the poorly housed settlements by 2020. Choguill claims that the large number of slum dwellers indicates a deficiency of practical housing policy. Whenever there is a significant gap in growing demand for housing and insufficient supply of affordable housing, this gap is typically met in part by slums. The Economist has observed that "good housing is obviously better than
17408-401: The world's 7.3 billion people that lived in urban areas. The change was driven by a combination of increased total population and increased percent of population living in urban areas. 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. This was the first time that
17544-421: Was also widened and extended to Mount Street, then renamed Swanfield Street. He designed 50 ft (15 m). wide tree lined streets to radiate from an ornamental space called Arnold Circus. The LCC architects designed 21 and Rowland Plumbe two of 23 blocks containing between 10 and 85 tenements each. A total of 1,069 tenements, mostly two or three-roomed, were planned to accommodate 5,524 persons. The project
17680-413: Was hailed as setting "new aesthetic standards for housing the working classes" and included a new laundry, 18 shops, and 77 workshops. Churches and schools were preserved. Building for the project began in 1893. The two schools, Rochelle School, which was largely built in 1879, and Virginia School, built in 1887, predated the estate. The new flats replaced the existing slums with decent accommodation for
17816-481: Was made worse by the ponds formed by the excavation of brickearth. Pigs and cows in back yards, noxious trades like boiling tripe, melting tallow, or preparing cat's meat, and slaughter houses, dustheaps, and 'lakes of putrefying night soil' added to the filth. In about 1860 in A Visit to the Rookery of St Giles and its Neighbourhood , he mentions the area again and uses the term rookery . The vicar of St Philip's,
17952-433: Was named for a lake named Collect . which, by the late 1700s, was surrounded by slaughterhouses and tanneries which emptied their waste directly into its waters. Trash piled up as well and by the early 1800s the lake was filled up and dry. On this foundation was built Five Points, the United States' first slum. Five Points was occupied by successive waves of freed slaves, Irish, then Italian, then Chinese, immigrants. It housed
18088-445: Was not well enforced and the government built settlements in the form of single-occupancy bedspaces. Due to the cost of time and money in their movement back and forth between rural and urban areas, their families gradually migrated to the urban centre. As they could not afford to buy houses, slums were thus formed. Others were created because of segregation imposed by the colonialists. For example, Dharavi slum of Mumbai – now one of
18224-516: Was possible due to participatory observations and the fact that the author of the research has lived in a slum to verify the socioeconomic practices which were prone to shape, plan and govern space in slums. Urban poverty encourages the formation and demand for slums. With rapid shift from rural to urban life, poverty migrates to urban areas. The urban poor arrives with hope, and very little of anything else. They typically have no access to shelter, basic urban services and social amenities. Slums are often
18360-527: Was to be provided by Board Schools - and school boards were set up across the country to build and run these schools. It was estimated that 100,000 places would be required in London which was a gross underestimation and 500,000 had been provided by 1900. The architect who oversaw this was E.R.Robson , a student of George Gilbert Scott .The two school houses on the Rochelle campus, juniors and infants, were early examples of Robson's work. The Rochelle School
18496-616: Was used as alternative expression for rookeries . In 1850 the Catholic Cardinal Wiseman described the area known as Devil's Acre in Westminster , London as follows: Close under the Abbey of Westminster there lie concealed labyrinths of lanes and potty and alleys and slums, nests of ignorance, vice, depravity, and crime, as well as of squalor, wretchedness, and disease; whose atmosphere is typhus, whose ventilation
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