Monday 5 August 2013

Slum Upgrading

"Slum upgrading is a process through which informal areas are gradually improved, formalised and incorporated into the city itself, through extending land, services and citizenship to slum dwellers.It involves providing slum dwellers with the economic, social, institutional and community services available to other citizens. These services include legal (land tenure), physical (infrastructure), social (crime or education, for example) or economic.

Slum upgrading is not simply about water or drainage or housing. It is about putting into motion the economic, social, institutional and community activities that are needed to turn around downward trends in an area. These activities should be undertaken cooperatively among all parties involved—residents, community groups, businesses as well as local and national authorities if applicable.

The activities tend to include the provision of basic services such as housing, streets, footpaths, drainage, clean water, sanitation, and sewage disposal. Often, access to education and health care are also part of upgrading.

In addition to basic services, one of the key elements of slum upgrading is legalising or regularising properties and bringing secure land tenure to residents.

Ultimately, upgrading efforts aim to create a dynamic in the community where there is a sense of ownership, entitlement and inward investment in the area."

Cities Alliance

Read all about slum upgrading here.

Monday 29 July 2013

The Future Of Slums: On The Line Between Hope & Despair

Cities Alliance
"The future of slums can be projected in two entirely different variants: slums of hope, and slums of despair. Based on the prevalent trends, despite some successes which could be termed as ‘best practices’ in formulating slum policies, slums have continued growing in the urban regions of the developing world."

"The need of the hour is to focus on a more comprehensive approach that will integrate factors of emergence and growth of slums and at the same time cooperate with different stakeholders responsible for addressing slum problem. The most striking outcome of past and existing slum policies and strategies are their short sightedness with respect to housing needs in urban regions."

"Governments need a paradigm shift in attitude by looking at the poor settlements not as part of the problem but as part of the solution and look at the poor not as beneficiaries but primary actors of their own development, key tenets of slum upgrading and enabling approaches."

Read the entire article at Urban Times.

Tuesday 9 July 2013

Lessons to be taken from slums

Favela Rocinha, Rio de Janeiro
(upload.wikimedia.org)
"I realised that the formal city couldn't survive without the informal city … in the slums I discovered a whole new social geography … I began rethinking my whole profession, unlearning what I had learned, and then re-focused on adaptation and reuse and using scarcity as a resource." (Brillembourg)
[...]

This notion is that the slum at its best – or at least at a conceptual level – is a Wiki city. There are no rules other than the resources available and the collective agreements among residents. "An interest that the profession has had for a few years, and it is shared by the public, is that cities don't need to be so planned," says Zaera-Polo. "That cities can be more varied … this raises interest in the idea of cities that are almost self-built: the Wiki house, and the crowd sourcing of design." [...]

"What is probably most fascinating about going to [slums] is that you see the public realm emerging from the bottom-up, you experience it literally," says Zaera-Polo. "As opposed to those of us who have been lucky and born into wealthy economies where it was already there. To see the favelas and slums in South America gives you an incredible insight into how the public realm emerges out of a group of individuals. I think this is something that advanced economies need to look at now."

Read the complete article at The Guardian.

Tuesday 30 April 2013

The Right to the City (D. Harvey) I

"The city, the noted urban sociologist Robert Park once wrote, is:
man's most consistent and on the whole, his most successful attempt to remake the world he lives in more after his heart's desire. But, if the city is the world which man created, it is the world in which he is henceforth condemned to live. Thus, indirectly, and without any clear sense of the nature of his task, in making the city man has remade himself.
The right to the city is not merely a right of access to what already exists, but a right to change it after our heart's desire. We need to be sure we can live with out own creations (a problem for every planner, architect and utopian thinker). But the right to remake ourselves by creating a qualitatively different kind of urban sociality is one of the most precious of all human rights. The sheer pace and chaotic forms of urbanization throughout the world have made it hard to reflect on the nature of this task. We have been made and remade without knowing exactly why, how, wherefore and to what end. How then can be better exercise this right to the city?


The city has never been a harmonious place, free of confusions, conflicts, violence. Only read the history of the Paris Commune of 1871, see Scorsese's fictional depiction of gangs of New York in the 1850s, and think how far we have come. But then think of the violence that has divided Belfast, destroyed Beirut and Sarajevo, rocked Bombay [...]. Calmness and civility in urban history are the exception not the rule. The only interesting question is whether the outcomes are creative or destructive. Usually they are both: the city is the historical site of creative destruction. Yet the city has also proven a remarkably resiliant enduring and innovative social form.

But whose rights and whose city?" 

Harvey, David (2003) "The Right to the City". International Journal of Urban and Regional Research. Published in: Lin, Jan & Mele, Christopher (2013) The Urban Sociology Reader. London: Routledge. p 429.

Sunday 24 March 2013

Housing and the Informal City

Vertical Yard
(www.housinginformalcity.co.za)
Housing Possibilities


"Can we imagine a move away from the ‘shrunken mansion’ syndrome satisfying a perceived aspiration towards a dynamic flexibility which can deliver subsidised housing in which the unit becomes an asset leading to income generation?

[...] The settlement upgrade would be planned for the increased occupation density from the start in terms of infrastructure and social amenities.

The design of the proposed housing types also attempts to incorporate and enable income generation through accommodating rental rooms, retail and small business enterprise. Houses are located close to the street boundary to create a sense of urbanity, surveillance, ease of trading and to limit the amount of unusable space between units. Micro-loans, in addition to a basic starter unit (funded by means of the subsidy), can assist owners to construct quality rental rooms as per various pre-defined options. Part of the resultant rental income would go towards repaying the loan. Both the Vertical Yard and the 14x7m Row House offer two different approaches to achieve growth over time and a mix of uses and economies."



Research project 2008-2010.

26'10 south Architects & Prof. Lone Poulsen (Wits University) in partnership with the Goethe-Institut, South Africa.

26'10 team: Thorsten Deckler & Anne Graupner (26'10 principals), Tahira Toffa, Guy Trangos, Shammemah Davids, Claire Lubell, Lara Wilson, Nzinga Mboup.

Friday 22 March 2013

10 informal city projects

Brief descriptions of 10 projects concerning informal issues in different city contexts all over the world. Some of them well known. Some others definitely worth some extra attention.

Read the complete article.

Metrocable
(intermediatelandscapes.files.wordpress.com)
1. Belapur Incremental Housing. Navi Mumbai, India (1986-present) | Charles Correa

2. The Favela-Bairro Project. Rio de Janeiro, Brazil (1995) | Jorge Mario Jauregui Architects

3. Vertical Gym. Chacao, Caracas, Venezuela (2001-03) | Urban-Think Tank with Mateo Pinto and Matias Pinto

4. Medellin’s Cable Transit System (2006)

5. Metro Cable. Caracas, Venezuela (2007-10) | Urban-Think Tank

6. Manguinhos Complex. Rio de Janeiro, Brazil (2005-10) | Jorge Mario Jáuregui/Metropolis Projectos Urbanos

7. METI-Handmade School. Rudrapur, Bangaldesh (2004-06) | Anna Heringer and Eike Roswag

8. Palestinian Refugee Camp of Nahr el Bared, North Lebanon (2009-present) | Isamael Sheikh Hassan, UNRWA

9. Strategic Urban Projects Dharavi Mumbai, India | Kelly Shannon and Janina Gosseye

10. The Value of Informal Settlements in the Design of Cities. Cali, Colombia (2009-present) | LAU

Tuesday 19 March 2013

Huaycán: A Case Study on Spontaneous Architecture (C. Dreifuss) III

Part II

Findings

The first identified stage of spontaneous housing is quite similar in almost every invasion: it begins with the demarcation of the land and its initial occupancy with a precarious building made of “esteras” (a constructive system based on a wooden structure, woven straw fences and a prefabricated roof of corrugated metal sheets or plastic). The first structures, frequently built overnight in order to avoid trouble with previous settlers or the authorities, look more like tents, but short after they are replaced by square one-room structures.
When it comes to the occupation of not consolidated lands, it is essential to overcome this stage quickly in order to avoid a possible eviction by the authorities. Therefore it is a priority to replace the initial precarious structure with a more permanent one. However, when it comes to the occupation of the edges of an already established neighbourhood, this stage can have a longer duration. In the experience in Huaycán it was observed that in the zone Z, the most recent occupation, many houses are still made of this type of structure then years after the arrival of the inhabitants. Although villagers expressed a desire for improvement, it is not among their immediate priorities.
Contemporary to the delimitation of the parcels and the erection of these early structures, the settlers’ committee designs areas to be left empty in order to make room for future public services: the streets are drawn considering, when the terrain permits it, a wide section to host even a future two-lane avenue with a central divider. There is also left empty space for public parks or plazas, sport grounds, one or more parcels for the reunion of the local community, mother’s clubs and wawawasis (daycare centers). Often, at this early stage, there is also the presence of representatives of religious orders, who also claim land for the future installation of a small church.
Already at this early stage, when the resident no longer has the constant threat of a possible eviction, it often happens that he or she begins to acquire building materials for possible extensions and consolidations of their home with “noble materials”. We often see bricks stacked beside the main façades of the houses, bags of dry cement on the roof or even stones from the surrounding hills. This is the way of saving often preferred by the new dwellers of the city. Although now the municipal saving banks could give the residents mortgage loans, even if their income is low, this saving method through materials is still widely used.
A second stage in the process occurs with the consolidation of the ground floor: the initial structures are replaced by “noble” materials (brick and a concrete structure). In this stage the priority is to plan the house in terms of its flexibility and, above all, the potential for future developments. Therefore it is quite common to leave an important area on the ground floor available for a small business or workshop, and a free rear area intended for a staircase to the future upper levels.
Constructively, the roof of this floor includes a projecting cornice intended to extend the useful area of the second level; the ends of the iron structures of the cast concrete are left uncoated for it use in the construction of the second floor. The final outline of the building at this level rarely looks finished.
In the third stage of the process the occupation of the second level takes place. Sometimes it is similar to what happened in the first level, starting with a provisional precarious structure that will later be replaced by more resistant materials. When the family’s economic situation allows it, this structure would be replaced by brick walls with casted concrete structure and roof.
It is important to note that this occupation generally occurs at the time when the family has grown and new members have joined in. Hence this floor is often used as housing for grown-up children and their families.
Characteristic elements in this stage are the outside stairs, destined to give an independent access to this area of the house, and the construction of top elements such as fake sloping roofs over the windows or balconies on the façade. Even if the inhabitants intend to continue with the construction of the house’s upper floors, the construction of the second level often coincides with a concern for formal and decorative aspects of the structure: the walls are plastered and painted, decorative elements are introduced, improvements in the outer space are made, etc. On the constructive aspect, it should be noted that there are still many cases maintaining the uncoated iron structure, anticipating for yet other modifications in the house’s structure.
UCV 20 LOTE 53
In Huaycán, most homes, regardless of the zone to which they belong, aspire to this level of consolidation. However, we can identify some isolated examples where a third and even a fourth level are added to the structure.
In most of these cases, the family would occupy a smaller portion of the constructed area, and the rest would be devoted to commercial activities such as hotels or rental homes. In the first case, the formal aspects of the building are particularly important and carefully chosen, aiming for a recognisable image; in the second case, the inhabitants prefer more functional solutions to maximise the occupancy of the available area.
Based on these general guidelines, it is possible to see particularities in the auto-construction processes according to the different studied zone. Evidently not every unit will evolve at the same pace and the economy of the family is the main factor. Residents of Huaycán and of squatter settlements in general agree to perceive their homes – and the ownership of the land – as a future investment opportunity, whether it is just a house, or combined with business or workshop. Not everyone, though, has the resources, opportunities or management skills allowing a considerable economic growth that would reflect in a uniform development of the neighbourhood. 
A second factor relates to external variables. For instance, the zones closest to the commercial centre in Huaycán (zones A and F), and amongst them, the houses placed nearer the main streets, have had the most accelerated evolution and can be found now in very advanced stages of consolidation. Consequently, the zone Z, even considering that its occupation is recent, has a much slower growing process in time.

To-do List

The study aims to show the patterns though which spontaneous architecture develops in time. These patterns will be later be classified in terms of form (physical interventions on the territory) and systems (ways of organisation and interrelation).
In the identification process of this patters we have outlines possible steps for this kind of research:
-          Establish a set of priorities in spontaneous housing, according to the data gathered in the interviews and with the analysis of the houses.
-          Identify the aspects preferred by the dwellers when choosing to build their own houses instead of buying/renting one. One of them, maybe the most important, is flexibility; the possibility to make business out of the land – sub-renting it, making a small workshop, having a store – is also important.
-          Identify the environmental factors affecting house/neighbourhood dwelling. The proximity to commercial lands, the presence of nearby hills or quarries, the eventual construction of new roads, all of them are important factors in the development of the neighbourhoods. A useful tool could be the drawing of heat maps in order to show in which areas the consolidation process is slower as to establish determinants.
-          Statistical analysis on consolidation levels, which percentage of the houses belongs to what stage of consolidation. This would allow us to focus not only in the general development of the neighbourhood, but also in the exceptions to the apparent rules.
Finally, it would be advisable to replicate this sort of experience in other settlements in the outskirts of Lima, in order to effectively check how similar this process is in other areas with different characteristics. This would lead to the establishment of general patters, which not only help us understand the phenomena of spontaneous architecture, but might also lead us to a more participative role in which the architect could propose dwelling projects for these areas, taking the particular processes of the inhabitants into account.

References:

  • Burga Bartra, J. El ocaso de la barriada: Propuestas para la vivienda popular. (Lima, Ministerio de Vivienda, Construcción y Saneamiento; UNI, Facultad de Arquitectura, Urbanismo y Artes, 2006).
  • Burga Bartra, J. «Las urbanizaciones populares.» in Huaca, no. 1 (Lima, Universidad Nacional de Ingeniería, 1987), pp 15-25.
  • Calderón Cockburn, J. «Los barrios marginales de Lima, 1961-2001.» in Ciudad y Territorio, Estudios Territoriales XXXV (Lima, 2003), pp 375-389.
  • Dreifuss Serrano, C. «El mercado arquitectónico del querer (pertene)ser.» in Arquitextos, No. 25, Globalización y resistencia. La inversión económica y su impacto en las ciudades, (Lima, 2010) pp. 14-17.
  • Figari, E. «Huaycán: Una experiencia de urbanismo popular.» in Huaca, no. 1 (Lima, Universidad Nacional de Ingeniería, 1987), pp 26-30.
  • Ludeña Urquizo, W. «Lima: Poder, centro y centralidad: Del centro nativo al centro neoliberal.» in Revista eure, Vol. XXVIII Nº 83 (Santiago, 2002), pp. 45-65.
  • Miró Quesada Garland, L. «La realidad de nuestro crecimiento urbano.» in Huaca, no. 1 (Lima, Universidad Nacional de Ingeniería, 1987), pp 31-36.
  • Nugent, G. El laberinto de la choledad. (Lima, Fundación Friedrich Ebert, 1992).
  • Tokeshi, J. «Arquitectura híbrida: el paisaje de la ciudad popular.» in Bedoya, S. Coloquio lo Cholo en el Perú. Migraciones y mixtura (Lima: Biblioteca Nacional del Perú, 2009) pp. 181-188.
  • Williams León, C. «Barriadas y pueblos jóvenes en Lima 1986.» in Huaca, no. 1 (Lima, Universidad Nacional de Ingeniería, 1987), pp. 4-14.

Huaycán: A Case Study on Spontaneous Architecture (C. Dreifuss) II

Part I

Case study

The auto-construction process goes beyond a precarious situation in which there is a lack of the financial means to complete the construction of the house. The evolutionary process of these units shows particularities in the daily life of the people, in the forms of resource management, social dynamics, formal preferences and other aspects, which show a much more complex process responding to many factors.
Being a long-term evolution, to get data on this process would require a continuous monitoring process over a decade or two, since the first settlers set up the initial huts until the final shape of a consolidated area with many-story permanent structures. Although such studies exist in other cities of Latin America, in this particular case we did not have the time or the resources for a long-term surveillance.
Therefore, in order to get a glimpse of the entire process, as accurate as possible and in a short period of time, an alternative method was developed: it starts with choosing a somewhat autonomous “pueblo joven” – having few external influences such as highways or more developed neighbourhoods nearby – with areas showing different levels of development in their buildings.
The project intends to put together a profile of the genesis and development of a self-constructed area, through a survey of timely information concerning housing and its construction process
The chosen area was the self-governing community of Huaycán, a peripheral neighbourhood in Ate Vitarte, a district east Lima, with an approximate population of 70,000 inhabitants. It was founded with the transfer of illegal invasions from Pariachi gorge to a nearby area that was unoccupied at the time. This is one of such settlements firstly established by the cooperation of professionals and a group of future inhabitants, and now it is still growing on its own accord. This process takes place mainly by the slow occupation of the peripheral areas, which get assimilated into the more consolidated neighbour settlements.
The area, whose first settlements were established in 1984 (Figari 1987), is now a large neighbourhood in continuous growth, with very different levels of development and consolidation. We find, thus, recently constructed housing in precarious materials, intermediate stages of consolidation in neighbourhoods that have not yet been provided with services such as paved roads or public transportation; and buildings (both housing and commerce) completely settled. The area is still developing and even as recently as this year new invasions have occurred in the few remaining unoccupied areas.
Being inside a geographic gorge, the community has received little influence from other districts or nearby roads, so its development has been mostly autonomous. Thus, for the purposes of our study, it is a sort of microcosm in which we could get the samples needed for monitoring the evolution of the dwellings.
One of the particularities of Huaycán is that it preserves a system for the population’s organisation, established at its initial stage by the first settlers. The area is divided in zones, and each zone in several UCV (Unidad Comunal de Vivienda, Community Housing Unit). Each UCV covers approximately one hectare and hosts 60 houses, and serves both as a social administration and as a representative unit for decision making in the entire area of Huaycán. This system has been copied in the newly occupied areas so that each new house build in the peripheral lots has to be assimilated to the adjacent UCV until reaching a number of new units big enough to constitute an independent UCV.
For the purposes of the described study, after an initial recognition of Huaycán, three areas were selected:
-          Zone A: founded in 1984, presents buildings in an advanced level of development: houses, commerce, services and small industry. The first visit allowed us to observe that the vast majority of buildings in this area were houses of two or more floors, built with so-called fine material (brick and concrete) and plastered walls. Because this is one of the areas designed by the architect E. Figari, there are many public space areas, small and medium-sized, although only in very rare cases they are taking care of by the population.
-          Zone F: laid out also in the 1980s, but occupied in the first half of the 90s, it is an intermediate moment of the progression, with homes in their process of consolidation and some small-scale trade. Most of the residential buildings are also build in brick and concrete in their first floors, but more often the upper levels are made of precarious materials. The streets in this area are not paved and public spaces are increasingly scarce.
-          Zone Z: an area invaded ten years ago, it is area in an early stage of the process of housing evolution. The vast majority of buildings are small structures of precarious materials and the public area is almost nonexistent, except for concrete slabs designed as sport areas, made by past majors as part of a populist policy. It should be notes that this is the most deserted zone in Huaycán, because trade is fairly low and there are no productive activities.

Huaycán, 2002. Zones A, F and Z.
(proyectozona06.blogspot.com)
For the collection of information a team was formed of 18 architecture students, organised in several smaller groups, which were assigned to the three mentioned areas. Students were tasked to compile information regarding housing, and to research on the history of each unit and their building processes. We sought to emphasize in the reasons behind decision-making and the factors influencing the composition and constructive aspects of the building.
Data was taken through interviews with the occupants of the houses, in situ photographs and subsequent drawing of evolutionary diagrams. All information was presented on pre-designed tabs, one for each analysed house. The information to be gathered by the students was presented as follows: (1) General data (composition of the family, location); (2) Formal aspects: façade, volume, relationships with the street, decoration, growth process in time; (3) Constructive system: materials, structure; (4) Functional organisation; (5) Ornament and meaning: analysis of decorative elements and composition; and (6) Additional data on the stories of the family.
In a second stage of the study, still in process, the data on the tabs is analysed in order to identify recurring elements and patterns, processes in the evolution of housing, similarities and variances according to the different zones and their characteristics. 

Part III

Dreifuss Serrano, Cristina (2011) Huaycán: A Case Study on Spontaneous Architecture in Lima, Perú. In: Informality: Re-viewing Latin-american CitiesUniversity of Cambridge, Feb. 18-19, 2011.

Huaycán: A Case Study on Spontaneous Architecture (C. Dreifuss) I

Introduction
In 1945 the Lima had a population of 573,600 inhabitants. Twenty-five years later, the number had increased almost five times to 2’541,300. Today, the area of Metropolitan Lima has a population of more than eight million people. The history is not unfamiliar for big Latin American cities, were the rapid growth of both large and medium-sized cities have called into question the traditional systems of making cities.
At the beginning, immigrants occupied the old neighbourhoods in the already developed areas of the city. The history centre, for instance, had been abandoned and the wealthy families that used to dwell on the area were moving south, to new neighbourhoods that were more fashionable at the time. The large colonial houses, after a short period of vacancy, were divided and reoccupied by numerous families, beginning thus a slumming process.
Around 1945 Lima’s centre was overpopulated, and yet new inhabitants of the city kept coming. Since neither the government, nor private institutions could provide a solution to this situation, the new citizens came up with an automatic answer: they became builders of their own city. New environments appeared, from architecture without architects, gradually growing from the requirements of its users-inhabitants, who also become its constructors. During the next decades, governments had quite permissive policies: either openly allowed the illegal occupation of these territories or just tolerate them as the ultimate alternative, since their current political and economic situation did not consent a better solution.
As a result, the growth of Lima, as many other Latin American cities, is marked by legal and illegal development (Calderón Cockburn 2003): part of the city grew according to the norms and urban layouts posed by the government while other areas, occupying a much larger territory, developed out of self-made huts, which turned into permanent structures short time later. The new inhabited areas of the city received the early name of “barriadas” (squatter settlements): a major alteration of the outskirts of the city. Later on, their name, which implied pejorative connotations, was changed to “pueblos jóvenes” [1]. These are new urban spaces, illegally created in a place that had not been prepared for dwelling, and lacking of every basic service, such as water, electricity or public transportation (Nugent 1992).
The invasions of what has been called the first wave (1940s) used to dwell in the territory as completely as possible, trying to use every little space for housing. Later on, though, the process of occupation of the land became much more organised. These new occupants of the city founded small settlements out of scratch, not only planning the limits for their future houses, but also leaving room for public spaces, streets and community centres for future developments.
Considering that most of the occupied areas were the flats desert zones of the periphery, and that the weather in Lima is mild, with no rain, nor extreme temperatures, the occupation of the territory could be organised taking the shape of a city, and with very precarious structures, since there was no great need of protection from the outside.
Sometimes this layout was more or less directed by professionals but most of the time it was the work of the communities’ own organisation, following patterns previously established by other invasions.
Nonetheless, it is most common that families chose to be the planers and constructors for their own houses, whether on their own or asking for help from friends or extended family. For once because it is believed that the cost of professional’s services largely surpasses the people’s economic possibilities. Another reason is the strong belief that the house is a flexible structure, which has to change shape and size in order to host the family’s necessities through time.
This way of building, self-construction, is mostly slow: looking at images of squatter settlements gives us always the impression of an eternal construction site. Houses are rarely finished and constantly transformed for lodging additional members of the family, small shops and business or even tenants. Christien Klaufus refers to this attitude as “salir adelante”, a popular expression referred to the constant improvement of the family’s quality of life through the further construction and development of the house. It is rarely in a final stage, but in the middle of a constant process, there is always something to add, something to get better.
In Perú, Auto-construction or self made architecture has been studied mainly from sociological, anthropological and urban perspectives. Few studies have approached these building systems form architecture’s point of view. Therefore the research team “Auto-constructed Architecture: Huaycán” was born. The study, taking place during most of 2010, aims to describe the developing in time of spontaneous architecture, identifying patterns (divided in shapes and systems) and the way they change as the situation of the families allows further construction of their houses.

Part II


[1] Literally “young settlement”. Squatter settlement.

Dreifuss Serrano, Cristina (2011) Huaycán: A Case Study on Spontaneous Architecture in Lima, Perú. In: Informality: Re-viewing Latin-american CitiesUniversity of Cambridge, Feb. 18-19, 2011.

Saturday 16 March 2013

Huaycán visit I







Static / Kinetic city (R. Mehrotra)

"The static city is built of more permanent materials - such as concrete, steel and brick - and is comprehended as a two-dimensional entity on conventional city maps and is monumental in its presence. Architecture is clearly the spectacle of the static city. And while the static city depends on architecture for its representation, it is no longer the single image by which the city is read. On the other hand, the kinetic city is not perceived through architecture, but through spaces, which hold associative values and support lives. Patterns of occupation determine its form and perception. It is an indigenous urbanism that has its particular 'local' logics. It is not necessarily only the city of the poor, as most images and discussions of the informal city might suggest; rather it is a temporal articulation and occupation of space which not only creates a richer sensibility of spatial occupation, but also suggests how spatial limits are expanded to include formally unimagined uses in dense urban conditions.

The informal or kinetic city carries local wisdom into the contemporary world without fear of the modern, while the static city aspired to erase the local and recodify it in a written formal order. The issue of housing (alums, shanty towns, etc.) most vividly demonstrates the rendering process of the kinetic city by the static city. Flow, instability and indeterminacy are basic to the kinetic city. [...] Thus the kinetic city is a fluid and dynamic city that is mobile and temporal (often as a strategy to defeat eviction) and leaves no ruins. It constantly recycles its resources, leveraging great effect and presence with very little means.

Mumbai (web.mit.edu )
Clearly, static and kinetic cities go beyond their obvious differences to establish a much richer relationship both spatially and metaphorically than their physical manifestations would suggest. Here affinity and rejection are simultaneously played out and are in a state of equilibrium maintained by a seemingly irresolvable tension. The informal economy of the city vividly illustrates the collapsed and intertwined existence of the static and kinetic cities. In fact, the kinetic city presents a compelling vision that potentially allows us to understand more clearly the blurred lines of contemporary urbanism in Latin America, Asia or Africa and the changing roles of people and spaces in urban society. The increasing concentrations of global flows in these contexts have exacerbated the inequalities and spatial divisions of social classes. In this context, an architecture or urbanism of quality in increasingly inequitable economic conditions requires that one looks deeper to find a wide range of places to mark and commemorate the cultures of those excluded from the spaces of global flows. These do not necessarily lie in the formal production of architecture, but often challenge it. Here the idea of a city is an elastic urban condition, not a grand vision, but a 'grand adjustment'."

Mehrotra, Rahul (2012 [2010]) "Foreword". In: Hernández, Felipe; Kellett, Peter; Allen, Lea K. Rethinking the Informal City. Critical Perspectives from Latin America. Oxford: Berghahn Books. pp xi-xii.

Friday 15 March 2013

Social Space (H. Lefebvre)

"(Social) space is not a thing among other things, nor a product among other products: rather it subsumes things produced, and encompasses their interrelationships in their coexistence and simultaneity - their (relative) order and/or (relative) disorder. It is the outcome of a sequence and set of operations, and thus cannot be reduced to the rank of a simple object. At the same time there is nothing imagined, unreal or 'ideal' about it as compared, for example, with science, representations, ideas or dreams. Itself, the outcome of past actions, social space is what permits fresh actions to occur, while suggesting others and prohibiting yet others. Among these actions, some serve production, others consumptions (i.e. the enjoyment of the fruits of production). Social space implies a great diversity of knowledge. [...]

A social space cannot be adequately accounted for wither by natures (climate, site) or by its previous history. Nor does the growth of the forces of production give rise in any direct causal fashion to a particular space or a particular time. Mediations, and mediators, have to be taken into consideration: the action of groups, factors within knowledge, within ideology, or within the domain of representations. Social space contains a great diversity of objects, both natural and social, including the networks and pathways which facilitate the exchange of material things and information. Such 'objects' are thus not only things but also relations. As objects, they possess discernible peculiarities, contour and form. Social labour transforms them, rearranging their positions within spatio-temporal configurations without necessarily affecting their materiality, their natural state (as in the case, for instance, of a island, gulf, river or mountain). [...]

We are confronted not by one social space but by many - indeed, by an unlimited multiplicity or uncountable set of social spaces which we refer to generically as 'social space'. No space disappears in the course of growth and development: the worldwide does not abolish the local. This is not a consequence of the law of uneven development, but a law in its own right. The intertwinement of social spaces is also a law. Considered in isolation, such spaces are mere abstractions. As concrete abstractions, however, they attain 'real' existence by virtue of networks and pathways, by virtue of bunches or clusters of relationships. Instances of this are the worldwide networks of communication, exchange and information. It is important to note that such newly developed networks do not eradicate from their social context those earlier ones, superimposed upon one another over the years, which constitute the various markets: local, regional, national and international markets; the market in commodities, the money or capital market, the labour market, and the market in works, symbols and signs; and lastly - the most recently created - the market in spaces themselves. [...] The corresponding buildings, in the towns, bear material testimony to this evolution. This social space, and especially urban space, emerged in all its diversity - and with a structure far more reminiscent of flaky mille feuille pastry tan of the homogeneous and isotropic space of classical (Eucliden/Cartesian) mathematics."

Lefebvre, Henri (2000 [1974]) The Production of Space. Oxford: Blackwell. pp 73-86.

Thursday 14 March 2013

Huaycán, zona Z

 



Modifications & Materials (U-TT)


"To describe the squatters' alterations to Torre David as a slumification or ranchosis[1] is both accurate and misleading. Residents look backward, to their experiences of the barrios, in order to move forwards, toward a normalized ideal drawn from middle-class standards. Throughout the building, one sees a certain consistency in the use of materials and application of methods in the common spaces and, to an extent, in each family’s living area. But there is also considerable eclecticism, born of individual ability, impulse towards experimentation, taste, and financial resources. In general, the adaptive reuse of the building appears to be evolving toward the “normal”, or formal, by means of a trial-and-error informality. Thus construction in Torre David combines collective knowledge of the self-built, incremental housing of the barrios with new techniques and strategies that adapt this knowledge to the conditions of the Tower.

For reasons of economy and custom, the most common choice of building material in Torre David is red clay brick, used to construct houses in the barrios. This gives the structures created but the residents the colour, texture, and morphologies seen in the barrios. Red bricks are also used to demarcate private space in Torre David, much as they are used in the barrios as a means of claiming territory. Interestingly, one of the caraqueños who moves into Torre David at the beginning of the current occupation was a brickmaker, who set up a small shop where he took up his vocation. While other small entrepreneurial efforts scattered through the building have succeeded, his, unfortunately did not. It proved more costly for residents to purchase his bricks than to buy them from the suppliers they had used in the barrios.

Some creative adaptations and design interventions, initially experimental, have proven successful. Breaking through walls that initially separated the building in the complex has greatly improves circulation; the passageways connecting Edificio K with the high-rise have been partially sealed with offset brick walls on each floor, providing a modicum of privacy without losing crucial ventilation. Some floors have painted these walls, using colour to give each “neighbourhood” a local identity.

Other interventions address a common issue using different methods and materials. To improve security along stairs, hallways, and balconies, residents have employed rebar, scavenged trusses, PVC pipes, and unmortared bricks, to varying degrees of stability and durability. Recycling is both standard and, often, inventive."

Urban Think-Tank (2013) Torre David. Informal vertical communities. Zürich: Lars Müller Publishers. pp 208-209.

More on Torre David.


[1] “Ranchosis” signifies a city dweller’s habit of mentally carrying the slum in one’s had and reproducing it in one’s environment. For further information, see José Tomas Sanabria, “ranchosis”, El Nacional (Caracas), February 21, 2000, http://www.tomasjosesanabria.com/index.php?mod=paginas&id=13.

How expensive is the cheapest house in Latin America?

"How expensive is the cheapest house in Latin America? The cheapest dwelling offered by the private sector in Latin America without any construction subsidies averaged $24,000 in 2010, and families needed 21 months of full income to pay for them, according to "Room for Development: Housing Markets in Latin America and the Caribbean", the latest edition of the IDB´s flagship publication Development in the Americas. The figure shows the average prices for the cheapest private-sector housing in large cities in Latin America. Caracas, Buenos Aires and Santiago are the region´s most expensive while La Paz, Managua and Guayaquil are the cheapest. Factoring in the level of income and the time that it would take a household to pay for the house, Buenos Aires, Caracas and Montevideo are the most expensive and Bogota, Guadalajara and San Jose are the cheapest."