jacmel satellite city in Haiti by trans_city TC ZT gmbh (designed using ArchiCAD)

Article source: trans_city TC ZT gmbh

Over the last 18 months, Christian Aulinger, Mark Gilbert and Georg Kogler of trans_city architecture and urbanism have developed a comprehensive plan for the reconstruction of Jacmel, Haiti based upon the concept of satellite cities located at the edge of the existing, earthquake-ravaged city center. (A concept developed in accordance with the universal design principals of the Housing Reconstruction Framework of the Haitian Government).

The concept includes an urban masterplan, and a proposal for prefabricated houses, in which the building shell is industrially manufactured in Austria, and finished by local hand workers.

Consistent with the content of the project, the architecture does not attempt to be spectacular or extravagant. Rather, it is the holistic integration of total urban system that makes this project interesting.

Rendering 01

• Architect: trans_city TC ZT gmbh
• Name of Project: jacmel satellite city
• Location: jacmel, Haiti
• Software used: Largely with ArchiCad, but we have a mixture of programs.

City Planning

The urbanism proposes an ecologically sustainable planning for a topographically challenging tropical site. We address the necessity for soil protection as well as the production of livable microclimates. The steep ravines separating the hilltop plateaus are utilized to generate a judicious and beneficial ecological setting, allowing areas for reforestation and agricultural usages to be embedded into the urban matrix of the settlement.

Rendering 02

The site is divided into three basic zones, based upon their topographic qualities.

1. Steep hillsides, which are not buildable, are to be reforested.
2. Valley bottoms, which are also not buildable due to flash-flood dangers, will be terraced and converted to middle intensity agriculture for local consumption.
3. Ridges and plateaus are inhabitable for the built environment.

Rendering 03

An essential objective of the planning was the construction of an affordable, ridge-top road network that linked the built-up areas with each other as well as to the access road Route 204 connecting to Jacmel. Along these roads, we developed a series of neighborhoods, each with their own school, market and commercial center. These are in turn linked to a central commercial and administration center adjoining a light industrial district which will house textile shops and – hopefully – baseball manufacture, a traditional handwork specialty of Haiti.

Rendering 04

We have been working with representatives of the UNO in order to develop a socially responsible urban structure; child care (the light industrial workforce is largely female and child care is a burning issue), social centers and educational facilities are central aspects of the planning concept.

The spatial structure of the neighborhoods is determined by their topographic conditions. In the flatter areas (inclination zones I+II) the streets are laid out perpendicular to the main street in a classic gridiron system with interspersed green parks; the houses are one-story high. In the steeper areas (inclination zones III+IV) the streets track the site contours and are interconnected by a series of planted stairs; the two-family houses are two stories high and offset so that their entries address the terracing of the streets.

Rendering 05

Architecture

The architecture of the individual houses should be simple and directed to the needs and social practices of the Haitian people, as well as the tropical climate of the region.In final build-out houses will be built using local materials and techniques, but in the critical first phase, we propose using prefabricated, massive wooden components, produced in Austria, to build the houses.

The ambition is to use Austrian know-how to alleviate this extreme housing crisis. The Austrian timber industry is a world leader in the advanced manufacturing of massive wooden construction. Massive timber panels are extremely stable, therefore earthquake and hurricane resistant; when properly treated and constructed, they are highly impervious to termites.

Plan 01

Prefabricated parts will be transported to Jacmel in containers, and will be unpacked and the containers will be recycled as building blocks for the light-industrial workshops: recycling containers is the core competence of our NGO umbrella organization.

The houses will be assembled in Jacmel into unfinished shells, which will then be sold or given (depending upon need, etc.) to the inhabitants.In order to both spur the local economy and to increase owner identification with the new house – which is a serious issue in such projects – vouchers will be issued for contracting final build-out (painting, tiling, security and sun grates, etc.) to local handworkers.The goal is to insure the production of as much local added value as possible – and generate jobs and contracts for local handwork businesses.

Plan 02

The houses are based upon the classic Creole Cottage of New Orleans and the American South.We have done a number of years of urban and typological research into the New Orleans tradition, going back to the years before Katrina.

These New Orleans typologies originated in the Caribbean and most especially in Haiti; therefore, we deemed it appropriate to use these types as a basis for the Jacmel project.

Plan 03

There are three house sizes, all of which use the Creole Cottage typology with its generous front porch. The front porch is an important attribute of this architecture. As Caribbean life takes place out of doors, we believe that the porch, with its advantage of social connectivity, is the ideal element for this culture and climate.We also embrace Jane Jacobs’ ancient yet always applicable argument that networked social observation is the best guarantee for safety and social stability.

Plan 04

Each house has a fenced-in yard with storage and the possibility of a covered, outdoor workshop on the street side, as well as a private garden to the rear.

Both of these design facets are intended to provide a spatial framework allowing increased self-sufficiency for the inhabitants and represent a connection back to the urban design principals of social-interconnectivity and individual self-sufficiency, which we believe provides the backbone for a socially sustainable settlement.

At their summits, the roofs have opposing, projecting eaves in order to provide each of the necessarily small rooms with cross ventilation; intelligently prefabricated hurricane straps protect against wind-damage for storms up and including category III.

Plan 05

Plan 06

Plan 07

Tags: Haiti, jacmel

Categories: ArchiCAD, Master Plan, Urban Design

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