Archive for the 'Urbanismo' Category
POLIS, un blog sobre la ciudad, trae un extraordinario grupo de visiones (5 partes) acerca de los sueños socialistas en la ruta de la revolución.
Today, one billion of the world’s people live in slums such as Dharavi, in Mumbai, India. (Scott Eells/Bloomberg News)
The world’s slums are overcrowded, unhealthy – and increasingly seen as resourceful communities that can offer lessons to modern cities.
By Rebecca Tuhus-Dubrow
NOT EVERYBODY LIKED “Slumdog Millionaire” as much as the Oscar committee did. Aside from slum dwellers offended by the title, some critics lambasted its portrait of life in Dharavi, the biggest slum in Mumbai, as exploitative. A Times of London columnist dubbed it “poverty porn” for inviting viewers to gawk at the squalor and violence of its setting.
But according to a less widely noticed perspective, the problem is not just voyeurism; it’s the limited conception of slums, in that movie and in the public mind. No one denies that slums – also known as shantytowns, squatter cities, and informal settlements – have serious problems. They are as a rule overcrowded, unhealthy, and emblems of profound inequality. But among architects, planners, and other thinkers, there is a growing realization that they also possess unique strengths, and may even hold lessons in successful urban development.
The appreciation can come from unlikely quarters: In a recent speech, Prince Charles of England, who founded an organization called the Foundation for the Built Environment, praised Dharavi (which he visited in 2003) for its “underlying, intuitive ‘grammar of design’ ” and “the timeless quality and resilience of vernacular settlements.” He predicted that “in a few years’ time such communities will be perceived as best equipped to face the challenges that confront us because they have built-in resilience and genuinely durable ways of living.”
He echoes development specialists and slum dwellers themselves in arguing that slums have assets along with their obvious shortcomings. Their humming economic activity and proximity to city centers represent big advantages over the subsistence farming that many slum dwellers have fled. Numerous observers have noted the enterprising spirit of these places, evident not only in their countless tiny businesses, but also in the constant upgrading and expansion of homes. Longstanding slum communities tend to be much more tightknit than many prosperous parts of the developed world, where neighbors hardly know one another. Indeed, slums embody many of the principles frequently invoked by urban planners: They are walkable, high-density, and mixed-use, meaning that housing and commerce mingle. Consider too that the buildings are often made of materials that would otherwise be piling up in landfills, and slums are by some measures exceptionally ecologically friendly. Some countries have begun trying to mitigate the problems with slums rather than eliminate the slums themselves. Cable cars are being installed as transit in a few Latin American shantytowns, and some municipal governments have struck arrangements with squatters to connect them with electricity and sanitation services.
And there are thinkers who take the idea a step further, arguing that slums should prompt the rest of us to reconsider our own cities. While the idea of emulating slums may seem absurd, a number of planners and environmentalists say that we would do well to incorporate their promising elements. One architect, Teddy Cruz, has taken the shantytowns of Tijuana as inspiration for his own designs; he is currently working on a development in Hudson, N.Y., that draws on their organically formed density.
“We should not dismiss them because they look ugly, they look messy,” says Cruz, a professor at UC San Diego. “They have sophisticated, participatory practices, a light way of occupying the land. Because people are trying to survive, creativity flourishes.” To be sure, there is something unseemly in privileged people rhapsodizing about such places.
Prince Charles, for all his praise, does not appear poised to move to a shack in Dharavi. Identifying the positive aspects of poverty risks glorifying it or rationalizing it. Moreover, some of the qualities extolled by analysts are direct results of deprivation. Low resource consumption may be good for the earth, but it is not the residents’ choice. Most proponents of this thinking agree that it’s crucial to address the conflict between improving standards of living and preserving the benefits of shantytowns.
But given the reality that poverty exists and seems unlikely to disappear soon, squatter cities can also be seen as a remarkably successful response to adversity – more successful, in fact, than the alternatives governments have tried to devise over the years. They also represent the future. An estimated 1 billion people now live in them, a number that is projected to double by 2030. The global urban population recently exceeded the rural for the first time, and the majority of that growth has occurred in slums. According to Stewart Brand, founder of the Long Now Foundation and author of the forthcoming book “Whole Earth Discipline,” which covers these issues, “It’s a clear-eyed, direct view we’re calling for – neither romanticizing squatter cities or regarding them as a pestilence. These things are more solution than problem.”
The word “slum” itself is controversial and slippery. In the United States, it is often used to refer simply to marginalized neighborhoods, but in developing countries, it usually means a settlement built in or near a city by the residents themselves, without official authorization or regulation. Housing is typically substandard, and the infrastructure and services range from nonexistent to improvised.
There is nearly as much diversity among informal settlements (a term sometimes used in preference to the more loaded “slum”) as in their formal counterparts. They include a wide range of economic levels and precariousness. In Kenya, about a million people live in Kibera, outside the city center of Nairobi. Its huts are built of mud and corrugated metal, trash is everywhere underfoot, and “flying toilets” – plastic bags used for defecation and then tossed – substitute for a sanitation system. In Istanbul, by contrast, where the city government has been more sympathetic, some squatter areas have water piped into every home.
Without some degree of government support, slums tend to be fetid and disease ridden, and until a few decades ago, the most popular approach to solving their problems was to demolish them. In the 1960s and 1970s, Brazil, for example, razed many of its slums, called favelas, and relocated residents to government housing. But since then, a new idea has emerged in development circles: that such settlements are more than eyesores; they are the product of years of residents’ labor, and legitimate communities that should be improved rather than erased.
“One of the misconceptions is that they’re endless seas of mud huts,” says Robert Neuwirth, author of “Shadow Cities: a Billion Squatters, a New Urban World,” who spent two years living in squatter communities. “There’s a tremendous amount of economic activity – stores, bars, hairdressers, everything.”
An early reappraisal came in the book “Freedom to Build: Dweller Control of the Housing Process” (1972), edited by John F. C. Turner and Robert Fichter. Some of the contributors had closely studied squatter communities in the developing world, and the book argued that when people had autonomy over their housing and their environments, the residents and the settlements thrived. The development community began to recognize the drawbacks of evicting people and relocating them, which can be “incredibly traumatic,” says Diana Mitlin, senior research associate at the International Institute for Environment and Development in the UK. In 1975, the World Bank officially changed its position to endorse upgrading instead of new site development for squatters.
More recently, shantytowns have been reassessed in light of the growing awareness of the benefits of urbanization. Cities provide myriad economic opportunities that are lacking in the countryside, which is why millions of people stream in every month. They also offer freedom – especially, notes Brand, for women, who find greater access to jobs and education, as well as healthcare. Birthrates tend to fall when families move from villages to cities, not only thanks to family planning services, but also because more children, an asset on the farm, are a burden in the city.
What’s more, cities are increasingly seen as good for the planet. Aside from slowing population growth, they’re also more efficient in their use of resources, and allow abandoned land in the country to regenerate.
Most of these benefits, of course, would accrue even if migrants were moving to apartments in fashionable districts. But in practice, urbanization means the movement of poor people into slums. And while this reality certainly poses challenges, in the past few years, some analysts have begun to see slums as not simply the only realistic option, but as having certain advantages over formal settlements, especially the government-built high-rise projects where the poor are often housed.
Shantytowns are “pedestrian-friendly. There are small alleyways, the streets are narrow. Children can play in the streets,” says Christian Werthmann, a professor of landscape architecture at Harvard. Some frustrating parts of slum life – the close quarters and the need to cooperate with neighbors in endeavors like obtaining services – have an upside: they can contribute to a strong sense of community. And although many shantytowns are dangerous, some actually have very low crime rates. Writing recently in the New York Times, two researchers affiliated with the Indian nonprofit Partners for Urban Knowledge Action and Research defended the highly developed slum of Dharavi as “perhaps safer than most American cities,” protected by the watchful eyes of close-knit neighbors.
There is an ethos of self-reliance in communities independently built and continually rebuilt by their residents. Over the course of years or decades, residents may upgrade from cardboard to corrugated metal to brick, add floors on top of the roof. They are invested in their creations, and typically prefer them to the feasible alternatives. “When people are relocated to places where government thinks they can be housed in a better way, they often move back,” says Hank Dittmar, chief executive of Prince Charles’s Foundation for the Built Environment. Living in a legal neighborhood would usually mean more money for less space, without the prospect of improving or expanding. And it might entail constraints that don’t apply in the slums – for instance, zoning laws about where it’s acceptable to operate businesses.
Another major concern of contemporary urban planners is ecological sustainability, and shantytowns get high marks for that, too. Teddy Cruz, who has spent a great deal of time in Tijuana, says, “These slums have been made with the waste of San Diego. . . . Aluminum windows, garage doors. Debris is building these slums.”
Still, most shantytowns remain difficult and unhealthy places for people to live and grow up. They are also reviled by their wealthier neighbors, and as cities expand, sometimes they find themselves in the crosshairs of developers eager to build on their prime real estate. Some countries continue to clear slums: In 2005, Zimbabwe perpetrated brutal demolitions, called Operation Drive Out Trash, which left hundreds of thousands of settlers homeless. Dharavi is located in the heart of Mumbai, and plans have been underway to develop high-rises and high-end commercial ventures in that area. Following protests, the plans will now be reviewed by an advisory group that includes some residents.
In a number of countries, government and aid organizations have been working with squatters to retrofit slums. Brazilian favela dwellers, who are voters, have obtained concessions such as hookups to water mains and electricity. Squatters in many cities have established their own activist organizations, which work together under an umbrella group called Shack/Slum Dwellers International. Jockin Arputham, the group’s president (and head of India’s national slum-dweller organization) recalled in a published interview that years ago he led a large group of children in collecting garbage in their community and depositing it in front of the municipal council’s offices. “[W]e showed them the garbage problem in our settlement and began a negotiation,” he told the journal Environment & Urbanization. “We said that we would organize the garbage collection if the municipality would provide the truck to collect it regularly.” The gambit worked. There is debate about whether the informality itself is a plus or a minus. Hernando de Soto, a Peruvian economist, has argued that slum dwellers should be given title deeds for their plots, in order to liberate the “dead capital” they are sitting on – to enable them to get loans from banks. But many analysts are skeptical of this proposal. One problem is that individual property rights could disrupt the stable system of communal control that has evolved in many slums. Another possibility is that residents might quickly sell their new deeds for cash, and thus lose the rights to their longtime homes.
There are also downsides to retrofitting slums. According to Ciro Biderman, a fellow at the Lincoln Institute of Land Policy, upgrading is much more expensive than building a new settlement with infrastructure in place from the outset, and amounts to a subsidy he considers unfair to poor people who do not live in slums. Another concern is that shantytowns are sometimes built on environmentally fragile terrain, such as steep hillsides or wetland areas – in those cases, helping residents stay in place can be both dangerous for the inhabitants and ecologically damaging.
Meanwhile, some observers in the developed world have been asking, what if the laudable aspects of these informal communities could be disentangled from the unfortunate parts? To build housing for low-income people, Cruz has drawn inspiration from Tijuana shantytowns for developments in Southern California, and is currently working on the one in Hudson. It will include communal porches and terraces, and spaces meant to encourage small start-up businesses – for example, providing room to store sewing machines. The intention is to integrate a poorer immigrant population into the area by creating openings for a community to evolve. He calls his vision “club sandwich urbanism – layering. It occurs through time. Our planning institutions never think about time.” Cruz and Neuwirth say we can also learn from the spirit of collaboration in informal settlements, and their ingenuity in the use of space. Their richness suggests to some that the dominant American mode of living, for all its suburban comforts, has come at a price. Municipalities might want to reconsider zoning laws to allow residences to double as businesses, says Cruz: he imagines small enterprises being run out of garages. In Werthmann’s view, we might also emulate the low-rise, high-density model, which is conducive to neighborliness and requires no elevators. On a more basic level, these places can teach us about where, for better or worse, urban life appears to be headed. “Squatters are the world’s dominant builders,” says Brand. “If you want to understand what’s going on in cities, look at squatters.”
Fuente: Boston Globe
Asociaciones patrimoniales se oponen a la construcción de una nueva plaza, junto a la Plaza de los Tres Poderes, el Congreso Nacional y la Catedral Metropolitana, edificios declarados patrimonio de la humanidad, también de su autoría
BRASILIA (AP).- El renombrado arquitecto brasileño Oscar Niemeyer desató una polémica con una propuesta para construir una nueva plaza en el centro de Brasilia, la ciudad que exhibe algunas de sus creaciones más celebradas.
Su idea de construir una Plaza de la Soberanía en la Explanada de los Ministerios, con un edificio curvo de baja altura y un obelisco inclinado de 100 metros, provocó una discusión en blogs, sitios de internet y medios de comunicación.
El debate se centra principalmente en la conveniencia de la obra en medio de edificios del propio Niemeyer, declarados patrimonio de la humanidad.
Incluso el Instituto de Patrimonio Histórico y Artístico (Iphan) y la Unesco terciaron en las discusiones para advertir que la plaza sería ilegal por contravenir la ley de patrimonio histórico de Brasilia, que establece que la Explanada de los Ministerios debe mantenerse abierta, sin ninguna construcción.
Defensores de la obra señalan que la nueva plaza aportaría a la ciudad un punto de encuentro para sus habitantes, mientras sus detractores alertan que sería un atentado contra el trazado original, obra del fallecido arquitecto Lucio Costa, e interferiría con la vista abierta de otras obras del propio Niemeyer.
El gobernador del Distrito Federal, José Roberto Arruda, presentó el proyecto a inicios de enero con la promesa de construirla a tiempo para las celebraciones del 50 aniversario de Brasilia, en abril de 2010. Pero ante los cuestionamientos surgidos en torno al proyecto, dio marcha atrás y dijo que no había presupuesto para la obra.
A sus 101 años de edad y aún activo, Niemeyer defendió su obra en una carta publicada por el diario Correio Braziliense .
“Me espanta la discusión levantada al presentar una nueva plaza para ser construida en Brasilia. En mi última visita (en diciembre) pude sentir con claridad la necesidad de crear una plaza en escala compatible con la capital de un país tan admirado como el nuestro”, escribió el arquitecto en su carta.
Pero el superintendente del Iphan en el Distrito Federal, Alfredo Gastal, señaló que la ley de patrimonio histórico impide construcciones en el área central de la Explanada de los Ministerios. Argumentó además que, desde el punto de vista estético, bloquearía la vista abierta a otras obras del propio Niemeyer, como la Plaza de los Tres Poderes, el Congreso Nacional y la Catedral Metropolitana.
En medio de la polémica, la arquitecta María Elisa Costa, hija de Lucio Costa, propuso transferir la construcción a la parte posterior de la Estación Rodoviaria, principal centro de transporte urbano de la ciudad, donde no interferiría con otras obras de Niemeyer y mantendría fácil acceso para los visitantes de la terminal, como quería el arquitecto.
Entre tanto, el gobernador Arruda comentó el jueves que la discusión es sana en una ciudad joven como la capital brasileña. “Recibí el proyecto, agradezco a Oscar (Niemeyer) y agradezco a todas las personas que están dando contribuciones a Brasilia. Lo que encuentro bonito de esa polémica es que Brasilia está viva, está discutiendo”.
Fuente: La Nación
Por MIGUEL TORÁN | IRIS MIR (SOITU.ES)
SEÚL (COREA DEL SUR).- Las ciudades asiáticas crecen a un ritmo diferente que las grandes urbes europeas o americanas. Si hay que desalojar a un millón de personas para construir una sede olímpica, que se busquen otro hogar. Si hay que crear una isla artificial para ampliar un aeropuerto, se ganan hectáreas al mar. Si hay que desafiar a la gravedad y construir rascacielos más altos, se corre el riesgo. Se consigue así grandes urbes, modernas y punteras, pero que han perdido el encanto de antaño. Aunque otras veces, este urbanismo arriesgado tiene resultados que estimulan la vida de una ciudad.
Los mejores proyectos de Grado del Mundo en arquitectura y Urbanismo
Was modernism complicit with colonialism, and did the struggle for decolonisation also entail a targeting of imperial modernist architecture? Mark Crinson visits the exhibition In the Desert of Modernity to see if the charge will stick.
Image: Aerial view of the Carrieres Centrales, Casablanca, c. 1953, showing Cité Verticale (centre foreground), surrounded by estates of courtyard houses and (left) the bidonville
By Mark Crinson
Modernist architecture was full of good intentions. It would dispel the irrational and the merely woolly. It would cleanse the body and heal the soul. It would draw a world of nasty parochialisms towards cosmopolitanism and the international. Announcing a new beginning it dismissed bad objects like history and style, as well as old regimes and empires, as just so much detritus of the past. And for some time, at least in Europe, it seemed possible to maintain this illusion. But then came the fall. Modernism was bureaucratised and commercialised, architects rebelled against its constraints, residents rejected its harsh disciplines, and historians began to expose its tainted connections. Yet modernist thinking retains some of its attractions; there is a seductive asceticism about it still, and nostalgia often for its utopias.
One of these lost illusions is addressed by the exhibition In the Desert of Modernity, held at the Haus der Kulturen der Welt in Berlin (29 August – 26 October 2008). It argues for connections between French colonialism in North Africa, modernist architecture and planning, and social unrest in the estates, bidonvilles, and banlieues of contemporary European cities. The exhibition’s thesis essentially is that colonial attitudes to North Africa as a laboratory of modernity generated forms of resistance to colonialism and internal critique of modernism, and that all of these – the laboratory, the resistance and the critique – were then imported into European cities. Such an ambitious argument would potentially overload any exhibition, but the photographs, plans, videos, letters, posters, paintings, magazines and books on display did just enough to suggest the richness and significance of the subject.